United States Securities and Exchange Commission Form

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of Earliest Event Reported): June 22, 2015

CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter)

Maryland 001-35789 46-0691837 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.)

1649 West Frankford Road Carrollton, TX 75007 (Address of Principal Executive Office)

Registrant’s telephone number, including area code: (972) 350-0060

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

ITEM 8.01 — Other Events.

As previously announced in the Current Report on Form 8-K filed by CyrusOne Inc. (the “Company”) on April 28, 2015, the Company’s operating partnership, CyrusOne LP, a Maryland limited partnership (the “Operating Partnership”) entered into an Agreement and Plan of Merger (the “Merger Agreement”) by and among the Operating Partnership, Jupiter Merger Sub, LLC, a Delaware limited liability company and wholly owned subsidiary of the Operating Partnership (the “Merger Sub”), Cervalis Holdings LLC, a Delaware limited liability company (“Cervalis”), and LDG Holdings LLC, as representative for the sellers. The Merger Agreement provides for the acquisition of Cervalis by the Operating Partnership pursuant to the merger of Merger Sub with and into Cervalis, with Cervalis as the surviving corporation (the “Merger”). Upon completion of the Merger, Cervalis will be an indirect wholly owned subsidiary of the Company. There can be no assurance that the Merger will be completed on the terms contemplated or at all.

The Company is filing certain historical and pro forma financial information related to the Merger as exhibits to this Current Report on Form 8-K.

ITEM 9.01 — Financial Statements and Exhibits.

(a) Financial statements of businesses acquired

The unaudited condensed consolidated interim financial statements of Cervalis as of March 31, 2015 and for the three months ended March 31, 2015 and 2014 are filed as Exhibit 99.1 hereto. The audited financial statements of Cervalis as of and for the years ended December 31, 2014, 2013 and 2012 are filed as Exhibit 99.2 hereto.

(b) Pro Forma Financial Information

The unaudited pro forma condensed combined balance sheet as of March 31, 2015 and the unaudited pro forma condensed combined income statements for the year ended December 31, 2014 and the three months ended March 31, 2015, giving effect to the Merger are filed as Exhibit 99.3 hereto. Such unaudited pro forma condensed combined financial statements are not necessarily indicative of the operating results or financial position that actually would have been achieved if the Merger had been in effect as of the dates and for the periods indicated or that may be achieved in future periods and should be read in conjunction with the historical financial statements of the Company and Cervalis.

(d) Exhibits

Exhibit No. Description

23.1 Consent of McGladrey LLP, Independent Registered Public Accounting Firm. 99.1 Unaudited condensed consolidated interim financial statements of Cervalis Holdings LLC as of March 31, 2015 and for the three months ended March 31, 2015 and 2014. 99.2 Audited financial statements of Cervalis Holdings LLC as of and for the years ended December 31, 2014, 2013 and 2012. 99.3 Unaudited pro forma condensed combined financial information of CyrusOne Inc. as of March 31, 2015 and for the year ended December 31, 2014 and the three months ended March 31, 2015.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

CYRUSONE INC.

Date: June 22, 2015 By: /s/ Thomas W. Bosse Thomas W. Bosse Vice President, General Counsel and Secretary

EXHIBIT INDEX

Exhibit No. Description

5 Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statements (No.’s 333-194770 and 333-194771) on Form S-3 (the “Registration Statements”) of CyrusOne Inc. (the “Company”) and the accompanying prospectuses, including any related prospectus supplements, of our report dated March 31, 2015, relating to our audit of the consolidated financial statements of Cervalis Holdings LLC and Subsidiaries as of and for the years-ended December 31, 2014, 2013 and 2012, included as Exhibit 99.2 to the Company’s Current Report on Form 8-K, dated June 22, 2015 and incorporated by reference in the Registration Statements, accompanying prospectuses and any related prospectus supplements.

We also consent to the reference to our firm under the captions “Experts” in such Registration Statements, accompanying prospectuses and any related prospectus supplements.

/s/ McGladrey LLP

New York, NY June 22, 2015

Exhibit 99.1

Cervalis Holdings LLC and Subsidiary

Condensed Consolidated Financial Report March 31, 2015 and December 31, 2014 and Three Months Ended March 31, 2015 and 2014

Contents

Independent Auditor’s Review Report 1 Financial Statements Condensed consolidated balance sheets 2 Condensed consolidated statements of operations 3 Condensed consolidated statements of changes in members’ (deficiency) equity 4 Condensed consolidated statements of cash flows 5 Notes to condensed consolidated financial statements 6-12

McGladrey LLP

Independent Auditor’s Review Report

To the Audit Committee Cervalis Holdings LLC Norwalk, Connecticut

Report on the Financial Statements

We have reviewed the condensed consolidated financial statements of Cervalis Holdings LLC and subsidiaries, which comprise the balance sheet as of March 31, 2015, and the related condensed consolidated statements of operations, changes in members’ (deficiency) equity and cash flows for the three- month periods ended March 31, 2015 and 2014.

Management’s Responsibility

The Company’s management is responsible for the preparation and fair presentation of the condensed financial information in accordance with accounting principles generally accepted in the United States of America; this responsibility includes the design, implementation, and maintenance of internal control sufficient to provide a reasonable basis for the preparation and fair presentation of interim financial information in accordance with accounting principles generally accepted in the United States of America.

Auditor’s Responsibility

Our responsibility is to conduct our reviews in accordance with auditing standards generally accepted in the United States of America applicable to reviews of interim financial information. A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with auditing standards generally accepted in the United States of America, the objective of which is the expression of an opinion regarding the financial information. Accordingly, we do not express such an opinion.

Conclusion

Based on our reviews, we are not aware of any material modifications that should be made to the condensed financial information referred to above for it to be in accordance with accounting principles generally accepted in the United States of America.

Report on Condensed Balance Sheet as of March 31, 2015

We have previously audited, in accordance with auditing standards generally accepted in the United States of America, the consolidated balance sheet as of December 31, 2014, and the related consolidated statements of operations, changes in members’ (deficiency) equity, and cash flows for the year then ended (not presented herein); and we expressed an unmodified audit opinion on those audited consolidated financial statements in our report dated March 31, 2015. In our opinion, the accompanying condensed consolidated balance sheet of Cervalis Holdings LLC and subsidiaries as of December 31, 2014, is consistent, in all material respects, with the audited consolidated financial statements from which it has been derived.

/s/ McGladrey LLP

New York, New York June 17, 2015

Member of the RSM International network of Independent accounting, tax and consulting firms.

Cervalis Holdings LLC and Subsidiary

Condensed Consolidated Balance Sheets March 31, 2015 and December 31, 2014 (amounts in thousands)

(Unaudited)

2015 2014 Assets Current Assets Cash and cash equivalents $ 4,445 $ 1,889 Accounts receivable, less allowance for doubtful accounts of $93 and $93 as of March 31, 2015 and December 31, 2014, respectively 5,639 5,612 Note receivable 294 286 Prepaid expenses 1,561 1,570 Other assets, current 425 1,385 Deferred costs 755 832 Total current assets 13,119 11,574

Property and Equipment, Net 181,025 183,180

Other Assets Long-term portion of other assets 1,947 2,080 Long-term portion of prepaid expenses 16 23 Long-term portion of note receivable 2,408 2,485 Rental security deposits 7,488 7,568 Long-term portion of deferred costs 1,712 1,853 Total other assets 13,571 14,009

Total assets $ 207,715 $ 208,763

Liabilities and Members’ (Deficiency) Equity Current Liabilities Accounts payable $ 1,993 $ 2,364 Accrued expenses 3,847 5,507 Accrued fixed assets 620 959 Customer deposits 44 463 Note payable 5,463 3,450 Deemed landlord financing 2,426 1,218 Capital leases 496 500 Deferred revenue 8,014 7,893 Total current liabilities 22,903 22,354

Long-Term Liabilities Long-term portion of accrued expenses 1,405 1,477 Long-term portion of note payable 162,675 162,550 Long-term portion of deemed landlord financing 97,893 98,677 Long-term portion of capital leases 899 1,025 Long-term portion of deferred revenue 653 643 Total long-term liabilities 263,525 264,372

Members’ (Deficiency) Equity (78,713) (77,963)

Total liabilities and members’ (deficiency) equity $ 207,715 $ 208,763

See Notes to Unaudited Condensed Consolidated Financial Statements.

Cervalis Holdings LLC and Subsidiary

Condensed Consolidated Statements of Operations (Unaudited) (amounts in thousands)

Quarter ended March 31,

2015 2014 Net Sales $ 20,362 $ 16,604 Cost of Services (including depreciation expense of $5,609 and $5,160 as of March 31, 2015 and 2014, respectively 14,822 11,965 Gross profit 5,540 4,639

Operating Expenses General and administrative expenses 1,046 941 Selling expenses 696 750 Total operating expenses 1,742 1,691 Income from operations 3,798 2,948

Other Income (Expense) Interest income 85 94 Interest expense (4,633) (4,466) Other income — 1 Total other income (expense) (4,548) (4,371) Net loss $ (750) $ (1,423)

See Notes to Unaudited Condensed Consolidated Financial Statements.

Cervalis Holdings LLC and Subsidiary

Condensed Consolidated Statements of Changes in Members’ (Deficiency) Equity Three Months Ended March 31, 2015 and 2014 (Unaudited) (amounts in thousands)

Preferred Common Total Members’ Members’ Members’ (Deficiency) (Deficiency) (Deficiency)

Equity Equity Equity Members’ (Deficiency) Equity, December 31, 2013 $ (63,840) $ (7,629) $ (71,469) Member distributions — (5) (5) Net loss (1,423) — (1,423) Members’ (Deficiency) Equity, March 31, 2014 $ (65,263) $ (7,634) $ (72,897) Members’ (Deficiency) Equity, December 31, 2014 $ (70,234) $ (7,729) $ (77,963) Net loss (750) — (750) Members’ (Deficiency) Equity, March 31, 2015 $ (70,984) $ (7,729) $ (78,713)

See Notes to Unaudited Condensed Consolidated Financial Statements

Cervalis Holdings LLC and Subsidiary

Condensed Consolidated Statements of Cash Flows Three Months Ended March 31, 2015 and 2014 (Unaudited) (amounts in thousands)

2015 2014 Cash Flows From Operating Activities Net loss $ (750) $ (1,423) Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Depreciation 5,609 5,160 Deferred revenue 131 6 Changes in assets and liabilities: (Increase) decrease in accounts receivable (27) 684 Decrease in note receivable 69 62 Decrease (increase) in prepaid expenses and deferred costs - commissions 234 (31) Decrease (increase) in other assets 1,093 (862) Accretion of deemed landlord financing (419) (38) (Decrease) increase in customer deposits (48) 337 (Decrease) increase in accounts payable (371) 1,428 Decrease in accrued expenses (2,071) (7,078) Net cash provided by (used in) operating activities 3,450 (1,755) Cash Flows From Investing Activities Return of security deposits 80 83 Purchase of property and equipment (2,982) (1,333) Net cash used in investing activities (2,902) (1,250) Cash Flows From Financing Activities Payments made on capital leases (130) (143) Proceeds from note payable 3,000 5,000 Payments made on note payable (862) (500) Net cash provided by financing activities 2,008 4,357 Net increase in cash and cash equivalents 2,556 1,352 Cash and Cash Equivalents Beginning of period 1,889 3,045 End of period $ 4,445 $ 4,397

See Notes to Unaudited Condensed Consolidated Financial Statements.

Cervalis Holdings LLC and Subsidiary

Notes to Condensed Consolidated Financial Statements (Unaudited) (amounts in thousands)

Note 1. Organization

Cervalis Holdings LLC (Holdings LLC) was formed on August 10, 2010, as a Delaware limited liability company for the purposes of obtaining an equity investment from outside investors. Following the formation of Holdings LLC, the members of Cervalis LLC (Operating LLC) contributed their ownership interests in Operating LLC to Holdings LLC.

Cervalis LLC is a data center operator and a provider of information technology (IT) infrastructure solutions and web hosting including business continuity/disaster recovery, managed hosting, managed security, managed storage, networking and telecommunications and colocation services. Cervalis LLC performs its operations through its data-centers and recovery-centers in Connecticut, New York and New Jersey.

Note 2. Basis of Presentation

The accompanying financial statements as of March 31, 2015 and December 31, 2014, and for the three months ended March 31, 2015 and March 31, 2014, are prepared on a consolidated basis.

In addition, the accompanying financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) and should be read in conjunction with the financial statements and notes thereto included in our Annual Report for the year ended December 31, 2014.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP for interim periods. In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments necessary to present fairly our financial position as of March 31, 2015, and our results of operations for the three months ended March 31, 2015 and 2014. These adjustments are of a normal recurring nature and consistent with the adjustments recorded to prepare the annual audited financial statements as of December 31, 2014.

Although management believes the disclosures in the condensed consolidated financial statements are adequate to make the information presented not misleading, certain information normally included in the footnotes prepared in accordance with GAAP has been omitted. Accordingly, these condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the annual consolidated financial statements for the year ended December 31, 2014. Interim results are not necessarily indicative of the results that may be expected for a full year.

Cervalis Holdings LLC and Subsidiary

Notes to Condensed Consolidated Financial Statements (Unaudited) (amounts in thousands)

Note 3. Significant Accounting Policies

No material changes have been made to the significant accounting policies disclosed in the audited consolidated financial statements for the year ended December 31, 2014.

Recently issued accounting pronouncements: In May 2014, the Financial Accounting Standards Board (the FASB) issued Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers. The amendments supersede the revenue recognition requirements in Topic 605, Revenue Recognition, including most industry-specific revenue recognition guidance throughout the Industry Topics of the Codification. In addition, the amendments supersede the cost guidance in Subtopic 605-35, Revenue Recognition—Construction-Type and Production-Type Contracts, and create new Subtopic 340-40, Other Assets and Deferred Costs—Contracts with Customers. The core principle of Topic 606 is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The amendments in ASU 2014-09 are effective for fiscal years ending after December 15, 2017. The Company is currently evaluating the impact of the pending adoption of the ASU on its condensed consolidated financial statements.

On April 1, 2015, the FASB voted to propose a delay in the effective date of ASU 2014-09, Revenue from Contracts with Customers (Topic 606), as follows:

Public business entities: The proposed new effective date will be annual reporting periods beginning after December 15, 2017 and the interim periods within that year. As such, for a public business entity with a calendar year-end, the ASU would be effective on January 1, 2018 for both its interim and annual reporting periods. This proposal represents a one-year deferral from the original effective date.

Entities other than public business entities (e.g., private companies): The proposed new effective date will be annual reporting periods beginning after December 15, 2018 and interim periods within annual periods beginning after December 15, 2019. As such, for a private company with a calendar year-end, the ASU would be effective for the year ending December 31, 2019 and interim periods in 2020. This proposal represents a one- year deferral from the original effective date.

Early adoption: The proposed new effective date guidance will allow early adoption for all entities (i.e., both public business entities and other entities) as of the original effective date for public business entities, which was annual reporting periods beginning after December 15, 2016, and the interim periods within that year. Early adoption by public business entities was not permitted under the original effective date guidance.

The Company is currently evaluating the effects of this pronouncement.

In April 2015, the FASB issued ASU 2015-03, Interest — Imputation of Interest. The amendments supersede the Proposed ASU 2014-250. The core principle of Subtopic 835-30 is to simplify presentation of debt issuance costs. The amendments would require that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of debt liability, consistent with debt discounts or premiums. The recognition and measurements for debt issuance costs would be affected by the amendments in this ASU. The amendments in ASU 2015-03 are effective for fiscal years ending after December 15, 2015. Early adoption of the amendment in this update is permitted. The Company is currently evaluating the effects of this pronouncement.

Cervalis Holdings LLC and Subsidiary

Notes to Condensed Consolidated Financial Statements (Unaudited) (amounts in thousands)

Note 4. Property and Equipment

Property and equipment consisted of the following:

March 31, December 31,

2015 2014 Furniture and fixtures $ 2,626 $ 2,605 Machinery and equipment 103,082 102,880 Computer equipment and software 13,950 13,774 Buildings 64,676 64,676 Leasehold improvements 40,452 40,251 Tenant improvements 6,892 6,660 Construction-in-progress 38,216 35,625 269,894 266,471 Less accumulated depreciation 88,869 83,291 Net property and equipment $ 181,025 $ 183,180

Depreciation expense for the three months ended March 31, 2015 and 2014 was $5,609, and $5,160, respectively.

Capitalized interest for the three months ended March 31, 2015 and 2014 was $473, and $473, respectively.

Note 5. Lease Obligations

The Company presently leases data-centers and recovery-centers located in Stamford, Connecticut; Wappingers Falls, New York; Totowa, New Jersey; and Norwalk, Connecticut. Deemed landlord financing represents leases of real estate in which we are involved in the construction of structural improvements to develop buildings into data centers and recovery centers. As a result of this involvement, we are deemed the “owner” for accounting purposes during the construction period and, at the lease inception date, we are required to record at fair value the property and associated liability on our balance sheet. Upon completion of the project, we must perform a sale-leaseback analysis pursuant to ASC 840 to determine if we can remove the assets from our balance sheet. In many of our leases, we are not reimbursed for the construction costs, which is generally considered “continuing involvement,” which precludes us from derecognizing the constructed assets from our balance sheet when construction is complete. Deemed landlord financing obligations for these facilities as of March 31, 2015 and December 31, 2014 were $100,319 and $99,895, respectively.

The Company also maintains several noncancelable capital leases primarily for computer, telecommunications and other equipment that expire at various times over a three- to five-year period. In addition, the Company maintains several noncancelable operating leases and network contracts primarily for computer equipment and network line access that expire over a three-year period.

Cervalis Holdings LLC and Subsidiary

Notes to Condensed Consolidated Financial Statements (Unaudited) (amounts in thousands)

Note 6. Term Loans and Lines of Credit

At March 31, 2015 and December 31, 2014, the outstanding obligation on the Term Loan was $147,250, and $148,000, respectively. At March 31, 2015 and December 31, 2014, outstanding borrowings on the Revolving Facility were $6,000 and $3,000, respectively. At March 31, 2015 and December 31, 2014, the outstanding borrowings on the Delayed Draw Term Loan were $14,888 and $15,000, respectively.

Interest expense on the Term Loans, Delayed Draw Term Loan and Revolving Credit Facility was approximately $2,997 and $2,876 for the three months ended March 31, 2015 and 2014, respectively.

Pursuant to the First Lien and Second Lien Agreements, the Company is required to comply with various financial covenants.

Note 7. Fair Value Measurement

The Fair Value Measurements Topic of the FASB Accounting Standards Codification (ASC) defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and sets out a fair value hierarchy. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). Inputs are broadly defined under this guidance as assumptions market participants would use in pricing an asset or liability.

This guidance establishes three levels of the fair value hierarchy as follows:

Level 1 Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. The types of investments in Level 1 include available-for-sale securities traded on a national securities exchange. These securities are stated at the last reported sales price on the day of valuation. The Company’s Level 1 investments consist of money market funds.

Level 2 Inputs other than quoted prices within Level 1 that are observable for the asset or liability, either directly or indirectly, and fair value that is determined through the use of models or other valuation methodologies. Investments in this category generally include less liquid and restricted equity securities, certificates of deposit and certain over-the-counter derivatives. A significant adjustment to a Level 2 input could result in the Level 2 measurement becoming a Level 3 measurement.

Level 3 Inputs that are unobservable for the asset or liability and that include situations where there is little, if any, market activity for the asset or liability. The inputs into the determination of fair value are based upon the best information in the circumstances and may require significant management judgment or estimation. Investments in this category generally include equity and debt positions in private companies. The Company has no Level 3 investments.

The fair value of cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximate their carrying value because of the maturities of these instruments. The fair value of the long-term debt approximates carrying value based upon the variable interest rate of the debt.

Cervalis Holdings LLC and Subsidiary

Notes to Condensed Consolidated Financial Statements (Unaudited) (amounts in thousands)

Note 8. Stock-Unit-Based Compensation Plans and Restricted Units

The Cervalis Common Unit Plan (the CUP) and the Cervalis Employee Unit Plan (the EUP) (collectively, the Plans) enable the Managing Company to provide long-term incentive compensation for key employees of Operating LLC who have rendered and continue to render valuable services, and who thereby make important contributions toward its continued growth and success. The Plans provide a means whereby such employees of the Company may be given an opportunity to benefit from growth in the value of the Company via ownership of Common Units.

Units issued under the EUP vest over a three-year period and are forfeited by the employee upon termination. The exercise price of units issued equals the fair value of the units on the date of grant. Units issued are payable only upon a liquidation event as defined by the EUP. As the realization of value of units issued is based upon a performance condition to be determined in the future, the Company has assessed the probability of such event happening as nil as of March 31, 2015 and 2014. As such, no compensation expense was recorded for the issuance of units during the three months ended March 31, 2015 and 2014. Such probability will be reviewed at each reporting period, and if probability of such an event becomes likely, the Company will record compensation expense.

Note 9. Related Party

At March 31, 2015 and December 31, 2014, accounts receivable from a Series B unit holder totaled approximately $261 and $609, respectively. During the three months ended March 31, 2015 and 2014, the Company recorded revenues for data center services totaling approximately $776 and $780, respectively, to the Series B unit holder.

Note 10. Subsequent Events

The Company has evaluated events occurring between March 31, 2015 and June 17, 2015, the date in which the condensed consolidated financial statements were available to be issued.

On April 28, 2015, Holdings LLC entered into an Agreement and Plan of Merger (the Merger Agreement) by and among Holdings LLC, Jupiter Merger Sub LLC (Merger Sub), LDG Holdings LLC and CyrusOne LP (CyrusOne), a publicly held provider of enterprise data center solutions, pursuant to which Merger Sub merged with and into Holdings LLC, with Holdings LLC continuing as the surviving entity and a wholly-owned subsidiary of CyrusOne.

10 Exhibit 99.2

Cervalis Holdings LLC and Subsidiary

Consolidated Financial Report December 31, 2014, 2013 and 2012

Contents

Independent Auditor’s Report 1-2

Financial Statements

Consolidated balance sheets 3

Consolidated statements of operations 4

Consolidated statements of changes in members’ (deficiency) equity 5

Consolidated statements of cash flows 6-7

Notes to consolidated financial statements 8-27

Independent Auditor’s Report

To the Audit Committee Cervalis Holdings LLC Norwalk, Connecticut

Report on the Financial Statements

We have audited the accompanying financial statements of Cervalis Holdings LLC and Subsidiary, which comprise the balance sheets as of December 31, 2014, 2013 and 2012, and the related statements of related consolidated statements of operations, changes in members’ (deficiency) equity and cash flows for the years then ended and the related notes to the financial statements.

Management’s Responsibility for the Financial Statements

Management is responsible for the preparation and fair presentation of these financial statements in accordance with accounting principles generally accepted in the United States of America; this includes the design, implementation, and maintenance of internal control relevant to the preparation and fair presentation of financial statements that are free from material misstatement, whether due to fraud or error.

Auditor’s Responsibility

Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free from material misstatement.

An audit involves performing procedures to obtain audit evidence about the amounts and disclosures in the financial statements. The procedures selected depend on the auditor’s judgment, including the assessment of the risks of material misstatement of the financial statements, whether due to fraud or error. In making those risk assessments, the auditor considers internal control relevant to the entity’s preparation and fair presentation of the financial statements in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the entity’s internal control. Accordingly, we express no such opinion. An audit also includes evaluating the appropriateness of accounting policies used and the reasonableness of significant accounting estimates made by management, as well as evaluating the overall presentation of the financial statements.

We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our audit opinion.

Opinion

In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of Cervalis Holdings LLC as of December 31, 2014, 2013 and 2012, and the results of its operations and its cash flows for the years then ended in accordance with accounting principles generally accepted in the United States of America.

Member of the RSM International network of Independent accounting, tax and consulting firms.

Emphasis of Matter

As described in Note 3 to the financial statements, the 2014, 2013 and 2012 consolidated financial statements have been restated to give effect to the adjustments and reclassifications noted therein.

/s/ McGladrey LLP

New York, New York March 31, 2014, except for the restatement described in Note 3 to the consolidated financial statements, as to which the date is June 15, 2015

Cervalis Holdings LLC and Subsidiary

Consolidated Balance Sheets (in thousands)

As of December 31,

2014 2013 2012

(As Restated) (As Restated) (As Restated) Assets Current Assets Cash and cash equivalents $ 1,889 $ 3,045 $ 2,691 Accounts receivable, less allowance for doubtful accounts of $93, $96 and $99 in year 2014, 2013 and 2012 respectively 5,612 5,297 4,225 Note receivable 286 255 227 Prepaid expenses 1,570 1,208 1,088 Other assets, current 1,385 226 837 Deferred costs 832 562 — Total current assets 11,574 10,593 9,068 Property and Equipment, Net 183,180 188,925 155,609

Other Assets Long-term portion of other assets 2,080 1,680 1,193 Long-term portion of prepaid expenses 23 32 31 Long-term portion of note receivable 2,485 2,771 3,026 Rental security deposits 7,568 8,445 6,383 Long-term portion of deferred costs 1,853 1,689 2,936 Total other assets 14,009 14,617 13,569 Total assets $ 208,763 $ 214,135 $ 178,246

Liabilities and Members’ (Deficiency) Equity Current Liabilities Accounts payable $ 2,364 $ 363 $ 67 Accrued expenses 5,507 5,484 4,024 Accrued fixed assets 959 7,501 — Customer deposits 463 81 28 Note payable 3,450 2,000 305 Deemed landlord financing 1,218 1,001 850 Capital leases 500 378 829 Deferred revenue 7,893 7,775 6,850 Total current liabilities 22,354 24,583 12,953

Long-Term Liabilities Long-term portion of accrued expenses 1,477 — — Long-term portion of note payable 162,550 163,000 30,042 Long-term portion of deemed landlord financing 98,677 96,629 89,899 Long-term portion of capital leases 1,025 341 399 Long-term portion of deferred revenue 643 1,051 1,101 Total long-term liabilities 264,372 261,021 121,441

Commitments and Contingencies

Members’ (Deficiency) Equity (77,963) (71,469) 43,852

Total liabilities and members’ (deficiency) equity $ 208,763 $ 214,135 $ 178,246

See Notes to Consolidated Financial Statements.

Cervalis Holdings LLC and Subsidiary

Consolidated Statements of Operations (in thousands)

Year Ended December 31,

2014 2013 2012

(As Restated) (As Restated) (As Restated)

Net Sales $ 69,050 $ 64,268 $ 58,235 Cost of Services (including depreciation expense of $21,478, $14,346 and $13,095 as of December 31, 2014, 2013 and 2012, respectively) 50,602 40,449 36,515

Gross profit 18,448 23,819 21,720

Operating Expenses General and administrative expenses 4,040 4,373 5,155 Selling expenses 2,869 3,053 2,337 Total operating expenses 6,909 7,426 7,492

Income from operations 11,539 16,393 14,228

Other Income (Expense) Interest income 383 423 424 Interest expense (18,315) (20,641) (9,919) Other income — — 3 Total other expense (17,932) (20,218) (9,492)

Net (loss) income $ (6,393) $ (3,825) $ 4,736

See Notes to Consolidated Financial Statements.

Cervalis Holdings LLC and Subsidiary

Consolidated Statements of Changes in Members’ (Deficiency) Equity (in thousands)

Preferred Common Total

Members’ Members’ Members’

(Deficiency) (Deficiency) (Deficiency)

Equity Equity Equity

Members’ Equity, January 1, 2012 (As Restated) $ 39,068 $ (51) $ 39,017 Member distributions — (54) (54) Member contributions 153 — 153 Net income 4,736 — 4,736 Members’ Equity, December 31, 2012 (As Restated) 43,957 (105) 43,852 Member distributions (103,972) (7,524) (111,496) Net loss (3,825) — (3,825) Members’ (Deficiency), December 31, 2013 (As Restated) (63,840) (7,629) (71,469) Member distributions (1) (100) (101) Net loss (6,393) — (6,393)

Members’ (Deficiency), December 31, 2014 (As Restated) $ (70,234) $ (7,729) $ (77,963)

See Notes to Consolidated Financial Statements.

Cervalis Holdings LLC and Subsidiary

Consolidated Statements of Cash Flows (in thousands)

Year Ended December 31,

2014 2013 2012

(As Restated) (As Restated) (As Restated) Cash Flows From Operating Activities Net (loss) income $ (6,393) $ (3,825) $ 4,736 Adjustments to reconcile net (loss) income to net cash provided by operating activities: Depreciation 21,079 14,216 13,015 Amortization of deferred costs 710 604 1,084 Deferred revenue (290) 876 552 Write-off of deferred financing costs — 1,587 — Changes in assets and liabilities: — — — Increase in accounts receivable (315) (1,072) (747) Decrease in note receivable 255 227 200 Increase in prepaid expenses and deferred costs - commissions (353) (120) 368 Increase in other assets (1,559) (713) (730) Increase in customer deposits 382 53 (1,087) Accretion of deemed landlord financing (5,339) 68 641 Increase in accounts payable 2,001 295 (2,471) (Increase) decrease in accrued expenses (349) 2,198 94 Net cash provided by operating activities 9,829 14,394 15,656

Cash Flows From Investing Activities Return of security deposits 870 2,354 1,500 Funding of security deposits — (4,412) (3,724) Interest receivable on security deposits 7 (4) — Purchase of property and equipment (8,637) (33,957) (13,683) Payments for buyout of leased equipment (2,225) — — Net cash used in investing activities (9,985) (36,019) (15,907)

Cash Flows From Financing Activities Payments made on capital leases (755) (509) (337) Proceeds from note payable 5,000 165,000 179 Payments made on note payable (4,000) (30,348) (431) Deferred financing costs (1,144) (668) (1,328) Member contributions — — 153 Member distributions (101) (111,496) (54) Net cash (used in) provided by financing activities (1,000) 21,979 (1,818)

(Continued)

Cervalis Holdings LLC and Subsidiary

Consolidated Statements of Cash Flows (Continued) (in thousands)

Year Ended December 31,

2014 2013 2012

(As Restated) (As Restated) (As Restated)

Net (decrease) increases in cash and cash equivalents $ (1,156) $ 354 $ (2,069)

Cash and Cash Equivalents Beginning 3,045 2,691 4,759

Ending $ 1,889 $ 3,045 $ 2,691

Summary of Noncash Items Acquisition of fixed assets under capital leases $ 1,560 $ 490 $ 986

Noncash deemed landlord financing $ 7,230 $ 6,813 $ 35,985

Accrued fixed assets $ 959 $ 7,501 $ —

Supplemental Cash Flow Information Cash paid for interest related to long-term debt $ 11,788 $ 8,167 $ 2,521

Cash paid for interest related to deemed landlord financing $ 6,440 $ 6,823 $ 5,492

See Notes to Consolidated Financial Statements.

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 1. Organization

Note 2. Summary of Significant Accounting Policies

Principles of consolidation: The accompanying consolidated financial statements include the accounts of Holdings LLC and its 100% owned subsidiary, Cervalis LLC (herein collectively referred to as the Company). All operations of the Company reside at the operating company level of Cervalis LLC and all equity contributions of the Company were reflected at the Cervalis Holdings LLC entity level. Holdings LLC contains no assets or liabilities. All intercompany balances and transactions have been eliminated in consolidation.

Use of estimates: The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. While management believes the estimates and assumptions used in the preparation of the financial statements are appropriate, actual results could differ from those estimates.

Financial instruments: The Company’s principal financial instruments are comprised of cash and cash equivalents, accounts receivable, accounts payable, accrued liabilities, a revolving line of credit, capital leases and notes payable. The carrying value of all financial instruments approximates fair value based upon the maturities of these instruments.

Cash and cash equivalents: The Company considers demand deposits, certificates of deposit, and all highly liquid investments with maturities of three months or less to be cash equivalents.

The Company maintains cash accounts with one financial institution. The carrying amounts reported in the consolidated balance sheets for cash and cash equivalents represent those assets’ fair values. At times, throughout the period, amounts of cash maintained on deposit were in excess of Federal Deposit Insurance Corporation limits.

Revenue recognition: The Company’s revenue streams consist of recurring service fees, setup fees and nonrecurring professional services. Contracts for managed infrastructure solutions and hosting services are generally long-term in nature. Hosting arrangements generally are noncancelable by either party without liquidated damages. Hosting revenues are recognized ratably over the contractual period as services are performed. Setup fees are amortized and recognized over the estimated customer relationship life. Incremental fees for excess bandwidth usage and other consumption-based items are billed and recognized as revenue in the period that customers utilize such services. Payments received and billings made in advance of providing hosting services are deferred until the services are provided.

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 2. Summary of Significant Accounting Policies (Continued)

Professional services revenues generally are recognized as the services are rendered, provided that no significant obligations remain and collection of the receivable is considered probable. Substantially all of the professional services contracts call for billings on a time and materials basis.

Cost of services: Cost of services consisted of the following for the years ended December 31:

2014 2013 2012

(As Restated) (As Restated) (As Restated)

Salaries, wages and benefits $ 6,548 $ 6,352 $ 5,432 Facilities-related expenses 5,346 3,930 3,722 Utilities and equipment costs 17,679 15,990 14,396 Cost of services, excluding depreciation 29,573 26,272 23,550 Depreciation 21,029 14,177 12,965 Total cost of services $ 50,602 $ 40,449 $ 36,515

Accounts receivable: Accounts receivable are stated net of an allowance for doubtful accounts which approximates those assets’ fair value. The Company estimates the allowance based on historical write-off activity and analysis of specific customers, taking into consideration the age of past due accounts and an assessment of the customer’s ability to pay.

Advertising costs: The Company expenses advertising costs as incurred. Advertising costs were $327, $310, and $289 for the years ended December 31, 2014, 2013 and 2012, respectively.

Feasibility expenses: The Company expenses data-center feasibility costs as incurred. Included in general and administrative expenses, the feasibility costs were $260, $102, and $579 for the years ended December 31, 2014, 2013 and 2012, respectively.

Impairment of long-lived assets: Long-lived assets are reviewed for impairment and reduced to fair value whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. There have been no such impairments at December 31, 2014, 2013 and 2012.

Property and equipment: Property and equipment are recorded at cost. Depreciation is computed using the straight-line method over the estimated lives of the assets, which are as follows:

Furniture and fixtures 5 years Machinery and equipment 7 years Computer equipment and software 3 to 5 years Buildings 30 years

Leasehold improvements are depreciated over the shorter of the estimated useful lives of the assets or the lease term, currently one to twenty-one years. On retirement or disposal, cost and related accumulated depreciation are removed from the accounts, and gain or loss, if any, is recorded in the loss for the period.

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 2. Summary of Significant Accounting Policies (Continued)

Leases: The Company leases real estate for use as data centers and recovery centers and is often responsible for constructing nonstandard tenant improvements (e.g. HVAC systems or other structural improvements). As a result of this involvement, the Company is deemed the “owner” for accounting purposes during the construction period and is required to capitalize the construction costs on their Balance Sheet. Upon completion of the project, the Company performs a sale-leaseback analysis pursuant to Accounting Standards Codification (ASC) 840 to determine if they can remove the assets from their Balance Sheet. In many of their leases, the Company is not reimbursed for the construction costs, which is generally considered “continuing involvement” which preclude the Company from derecognizing the constructed assets from their Balance Sheet when construction is complete.

In such cases, the Company capitalize the landlord’s construction costs, including the value of costs incurred up to the date the leases are executed (e.g., the building “shell”) and costs incurred during the remainder of construction period, as such costs are incurred; these costs are included in construction in progress. Interest, property taxes and certain labor costs are also capitalized during the construction of an asset. These costs are depreciated over the estimated useful life of the related assets.

When construction is complete, the asset is placed in service and depreciation commences. Leased real estate for which the Company is deemed the accounting owner is depreciated to the lesser of (i) its estimated salvage value at the end of the term or (ii) the expected amount of the unamortized obligation at the end of the term. The Company will continue to account for the landlord’s asset as if they are the legal owner, and the financing obligation, similar to other debt, until the lease expires or is modified to remove the continuing involvement that prohibits de-recognition. Once de-recognition is permitted, the Company would be required to account for the lease as either operating or capital in accordance with ASC 840. As of December 31, 2014, 2013 and 2012, the Company has not derecognized any landlord assets or associated financing obligations.

Stock-unit-based compensation: The Company accounts for stock-unit-based compensation in accordance with the Financial Accounting Standards Board (the FASB) ASC Topics 718 and 505, Share-Based Payments, which requires that compensation cost related to share-based payment transactions be recognized as operating expense in the consolidated financial statements (see Note 15). The Company recognizes compensation cost for awards with only service conditions that have a graded vesting schedule on a straight-line basis over the requisite service period for the entire award.

Income taxes: The Company is a limited liability company and is taxed under the provisions of Subchapter K - Partners and Partnerships of the Internal Revenue Code. Under those provisions, the Company does not pay federal or state corporate income taxes on its taxable income. Instead, the members include their respective shares of the Company’s net operating income or loss in their individual returns.

Fair value measurements: The Fair Value Measurements Topic of the FASB ASC defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and sets out a fair value hierarchy. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). Inputs are broadly defined under this guidance as assumptions market participants would use in pricing an asset or liability.

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 2. Summary of Significant Accounting Policies (Continued)

This guidance establishes three levels of the fair value hierarchy as follows:

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment.

The Company’s Level 1 investments consist of $1,889, $3,045, and $2,691 in money market accounts as of December 31, 2014, 2013 and 2012, respectively, and are included in cash and cash equivalents on the consolidated balance sheets.

The fair value of deemed landlord financing arrangements as of March 31, 2015 and December 31, 2014 was calculated using a discounted cash flow model that incorporates current borrowing rates for obligations of similar duration. These fair value measurements are considered Level 2 of the fair value hierarchy.

Financed receivable: The Company adheres to the provisions of Accounting Standards Update (ASU) 2010-20, Disclosures about the Credit Quality of Financing Receivables and the Allowances for Credit Losses, which requires disaggregated information about the credit quality of its financing receivables and its allowance for credit losses. Finance receivables are carried at their contractual amount and charged off against the allowance for credit losses when management determines that recovery is unlikely and the Company ceases collection efforts. The Company’s sole finance receivable consists of the note receivable described in Note 4. As of December 31, 2014, 2013 and 2012, there was no allowance for credit losses on the note receivable.

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 2. Summary of Significant Accounting Policies (Continued)

Recently issued accounting pronouncement: In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers. The amendments supersede the revenue recognition requirements in Topic 605, Revenue Recognition, including most industry-specific revenue recognition guidance throughout the Industry Topics of the Codification. In addition, the amendments supersede the cost guidance in Subtopic 605-35, Revenue Recognition— Construction-Type and Production-Type Contracts, and create new Subtopic 340-40, Other Assets and Deferred Costs—Contracts with Customers. The core principle of Topic 606 is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The amendments in ASU 2014-09 are effective for fiscal years ending after December 15, 2017. The Company is currently evaluating the impact of the pending adoption of the ASU on its consolidated financial statements.

Subsequent events: On April 28, 2015, Holdings LLC entered into an Agreement and Plan of Merger (the Merger Agreement) by and among Holdings LLC, Jupiter Merger Sub LLC (Merger Sub), LDG Holdings LLC, and CyrusOne LP (CyrusOne), a publicly held provider of enterprise data center solutions, pursuant to which Merger Sub merged with and into the Holdings LLC with Holdings LLC continuing as the surviving entity and a wholly-owned subsidiary of CyrusOne.

Note 3. Restatement of Previously Issued Consolidated Financial Statements

The Company leases space for its data centers and recovery centers under long-term noncancelable lease arrangements from unrelated third parties. Historically, the Company accounted for all building leases as operating leases under which they were not considered the owner of the leased asset.

When the Company leases real estate for use as data centers and recovery centers, they are often responsible for constructing nonstandard tenant improvements (e.g. HVAC systems or other structural improvements). As a result of this involvement, the Company is deemed the “owner” for accounting purposes during the construction period, so are required to capitalize the construction costs on the Balance Sheet. Following a review of the Company’s lease accounting practices in 2015, the Company corrected its method of accounting for certain data center leases where the Company was considered the owner during the construction period to capitalize within construction in progress the landlord’s construction costs, including the value of costs incurred up to the date we execute our lease (e.g., the building shell) and costs incurred during the remainder of construction period, as such costs are incurred and to recognize a financing obligation for construction costs incurred by the landlord.

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 3. Restatement of Previously Issued Consolidated Financial Statements (Continued)

The consolidated balance sheets as of December 31, 2014, 2013 and 2012, and the related consolidated statements of operations, changes in members’ (deficiency) equity and cash flows for the fiscal years ended December 31, 2014, 2013 and 2012 have been restated for the identified corrections. The effects of the restatements are as follows:

As of and for the Year Ended December 31, 2014

As Previously

Reported Adjustments As Restated Consolidated Balance Sheet Property and equipment, net $ 94,264 $ 88,916 $ 183,180 Total assets 119,847 88,916 208,763 Deemed landlord financing — 1,218 1,218 Total current liabilities 21,136 1,218 22,354 Long-term portion of accrued expenses 11,765 (10,288) 1,477 Long-term portion of deemed landlord financing — 98,677 98,677 Total long-term liabilities 175,983 88,389 264,372 Members’ (deficiency) equity (77,272) (691) (77,963) Total liabilities and members’ (deficiency) equity 119,847 88,916 208,763

Consolidated Statement of Operations Cost of services $ 58,257 $ (7,655) $ 50,602 Gross profit 10,793 7,655 18,448 Income from operations 3,884 7,655 11,539 Interest expense (11,875) (6,440) (18,315) Total other expense (11,492) (6,440) (17,932) Net (loss)/income (7,608) 1,215 (6,393)

(Deficiency) Equity Net (loss) income $ (7,608) $ 1,215 $ (6,393) Preferred members’ (deficiency)/equity (69,543) (691) (70,234) Total members’ (deficiency)/equity (77,272) (691) (77,963)

Consolidated Statement of Cash Flows Net (loss) income $ (7,608) $ 1,215 $ (6,393) Depreciation 19,781 1,298 21,079 Accretion of deemed landlord financing — (5,339) (5,339) (Increase) decrease in accrued expenses (3,175) 2,826 (349) Noncash deemed landlord financing — 7,230 7,230 Cash paid for interest related to deemed landlord financing — 6,440 6,440

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 3. Restatement of Previously Issued Consolidated Financial Statements (Continued)

As of and for the Year Ended December 31, 2013

As Previously

Reported Adjustments As Restated Consolidated Balance Sheet Property and equipment, net $ 100,663 $ 88,262 $ 188,925 Total assets 125,873 88,262 214,135 Accrued expenses 5,487 (3) 5,484 Deemed landlord financing — 1,001 1,001 Total current liabilities 23,585 998 24,583 Long-term portion of accrued expenses 7,459 (7,459) — Long-term portion of lease liability — 96,629 96,629 Total long-term liabilities 171,851 89,170 261,021 Members’ (deficiency) equity (69,563) (1,906) (71,469) Total liabilities and members’ (deficiency) equity 125,873 88,262 214,135

Consolidated Statement of Operations Cost of services $ 45,704 $ (5,255) $ 40,449 Gross profit 18,564 5,255 23,819 Income from operations 11,138 5,255 16,393 Interest expense (14,818) (5,823) (20,641) Total other expense (14,395) (5,823) (20,218) Net (loss)/income (3,257) (568) (3,825)

(Deficiency) Equity Net (loss) income $ (3,257) $ (568) $ (3,825) Preferred members’ (deficiency)/equity (61,934) (1,906) (63,840) Total members’ (deficiency)/equity (69,563) (1,906) (71,469)

Consolidated Statement of Cash Flows Net loss $ (3,257) $ (568) $ (3,825) Depreciation 14,085 131 14,216 Accretion of deemed landlord financing — 68 68 (Increase) decrease in accrued expenses 1,829 369 2,198 Noncash deemed landlord financing — 6,813 6,813 Cash paid for interest related to deemed landlord financing — 6,823 6,823

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 3. Restatement of Previously Issued Consolidated Financial Statements (Continued)

As of and for the Year Ended December 31, 2012

As Previously

Reported Adjustments As Restated Consolidated Balance Sheet Property and equipment, net $ 73,291 $ 82,318 $ 155,609 Total assets 95,928 82,318 178,246 Accrued expenses 4,053 (29) 4,024 Deemed landlord financing — 850 850 Total current liabilities 12,132 821 12,953 Long-term portion of accrued expenses 7,064 (7,064) — Long-term portion of deemed landlord financing — 89,899 89,899 Total long-term liabilities 38,606 82,835 121,441 Members’ (deficiency) equity 45,190 (1,338) 43,852 Total liabilities and members’ (deficiency) equity 95,928 82,318 178,246

Consolidated Statement of Operations Cost of services $ 41,406 $ (4,891) $ 36,515 Gross profit 16,829 4,891 21,720 Income from operations 9,337 4,891 14,228 Interest expense (4,427) (5,492) (9,919) Total other expense (4,000) (5,492) (9,492) Net (loss)/income 5,337 (601) 4,736

(Deficiency) Equity Net (loss) income $ 5,337 $ (601) $ 4,736 Preferred members’ (deficiency)/equity 45,295 (1,338) 43,957 Total members’ (deficiency)/equity 45,190 (1,338) 43,852

Consolidated Statement of Cash Flows Net income (loss) $ 5,337 $ (601) $ 4,736 Depreciation 13,176 (161) 13,015 Accretion of deemed landlord financing — 641 641 (Increase) decrease in accrued expenses (27) 121 94 Noncash deemed landlord financing — 35,985 35,985 Cash paid for interest related to deemed landlord financing — 5,492 5,492

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 4. Note Receivable

The Company has an agreement with a customer to provide data-center infrastructure, installation and configuration of colocation hosting services over a 10- year period. In accordance with the agreement, the Company financed $3,500 of custom fit out work on behalf of the customer. The customer will pay the note in equal monthly installments of $50 over the 10-year term subject to financing charges at 12% per annum. As of December 31, 2014, 2013 and 2012, the balance on the note was $2,771, $3,026 and 3,253, respectively.

Total note receivable at December 31, 2014, 2013 and 2012 were as follows:

2014 2013 2012

Total note receivable $ 2,771 $ 3,026 $ 3,253 Current 286 255 227 Noncurrent portion of note receivable $ 2,485 $ 2,771 $ 3,026

The credit risk profile based on payment activity:

Performing $ 2,771 $ 3,026 $ 3,253 Nonperforming — — — $ 2,771 $ 3,026 $ 3,253

The aged analysis of the note receivable as at December 31, 2014 is as follows:

Greater Than

31-60 61-90 90 Days Total Total Note

Past Due Past Due Past Due Past Due Current Not Yet Due Receivable Note receivable $ — $ — $ — $ — $ 50 $ 2,721 $ 2,771

Note 5. Deferred Costs

Deferred costs consisted of the following at December 31:

2014 2013 2012

Financing costs $ 1,284 $ 555 $ 1,811 Referral commissions 3,523 3,148 3,035 Sales commission 40 — 90 4,847 3,703 4,936 Less accumulated amortization 2,162 1,452 1,163 Net deferred costs $ 2,685 $ 2,251 $ 3,773

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 5. Deferred Costs (Continued)

The deferred financing costs are being amortized to interest expense over the term of the related Term Loan (see Note 10). Amortization expense was $242, $124, and $489 for the years ended December 31, 2014, 2013 and 2012, respectively. In February 2013, in conjunction with Company’s debt financing (see Note 10), the Company wrote off approximately $1,590 of unamortized deferred financing costs related to the extinguishment of term debt. Additionally, during February 2013, the Company capitalized approximately $670 of deferred financing costs related to a new credit facility (see Note 10). In June 2012, in conjunction with the Company’s debt refinancing (see Note 10), the Company wrote off approximately $600 of unamortized deferred financing costs related to the extinguished term debt. Additionally, during June 2012, the Company capitalized approximately $980 of deferred financing costs related to the debt modification on the CAPEX and Delay Draw Term Loan (see Note 10).

The referral and sales commissions are being amortized to commission expense over the term of the related customer contract. Such amounts were $468 and $480, and $455 for the years ended December 31, 2014, 2013 and 2012, respectively.

Note 6. Property and Equipment

Property and equipment consisted of the following at December 31:

2014 2013 2012

(As Restated) (As Restated) (As Restated)

Furniture and fixtures $ 2,605 $ 2,242 $ 2,055 Machinery and equipment 102,880 100,851 65,657 Computer equipment and software 13,774 9,239 8,414 Buildings 64,677 63,397 48,663 Leasehold improvements 46,135 43,613 32,121 Tenant improvements 6,660 5,931 4,546 Construction-in-progress 29,740 25,904 42,188 266,471 251,177 203,644 Less accumulated depreciation 83,291 62,252 48,035 Net property and equipment $ 183,180 $ 188,925 $ 155,609

Depreciation expense for the years ended December 31, 2014, 2013 and 2012 was $21,478, $14,346 and $13,095, respectively.

Capitalized interest for the years ended December 31, 2014, 2013, and 2012 was $61, $2,008, and $2,133, respectively.

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 7. Security Deposits

The security deposits identified in the consolidated balance sheets consist of security deposits on the administrative offices, data-centers, and leased equipment. Security deposits consisted of the following as of December 31:

2014 2013 2012

Data-center $ 7,488 $ 8,245 $ 6,078 Equipment under lease — 120 225 Administrative offices 80 80 80 Total security deposits $ 7,568 $ 8,445 $ 6,383

Note 8. Accrued Expenses

Accrued expenses consisted of the following at December 31:

2014 2013 2012

(As Restated) (As Restated) (As Restated)

Deferred rent $ — $ — $ — Note payable for construction 1,539 — — Bonus and commissions 528 1,163 1,129 Referral commissions 397 96 27 Payroll and benefits 368 616 447 Common charges 1,717 1,174 1,151 Accounts payable 1,161 282 646 Professional fees 131 150 122 Lease and network 16 45 26 Interest expense 772 1,517 — Accrued construction — — 151 Other 355 441 325 Total accrued expenses 6,984 5,484 4,024 Less long-term accrued expenses 1,477 — — Current portion of accrued expenses $ 5,507 $ 5,484 $ 4,024

Accrued fixed assets were $959, $7,501, and $151 at December 31, 2014, 2013 and 2012, respectively. The 2014, 2013 and 2012 accrued fixed assets are primarily related to the Company’s Norwalk, Connecticut and Totowa, New Jersey data-center and recovery-center build-out (see Note 9) and was partially funded by the CAPEX Facility (see Note 10).

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 8. Accrued expenses (Continued)

For financial statement purposes, rent expense is being recorded on a straight-line basis over the lease terms.

In January 2014, the Company entered into a long-term note payable with interest related to a power supply infrastructure build-out project for the Norwalk lease. The note will be paid in equal monthly installments of $9 over a 20-year term. There is no prepayment penalty. The interest rate is 3% for the initial three years and thereafter indexed to the 5-year constant maturity U.S. Treasury Bill plus 2%. The short-term and long-term balances are approximately $62 and $1,477, respectively, and are included in the short-term accrued expenses and long-term accrued expenses, respectively, on the consolidated balance sheet at December 31, 2014.

Note 9. Lease Obligations

The Company presently leases data-centers and recovery-centers located in Stamford, Connecticut, Wappingers Falls, New York, Totowa, New Jersey, and Norwalk, Connecticut. All of the Company’s facility leases include additional payments for common area and maintenance charges.

Wappingers Falls Data-Center and Recovery-Center, Wappingers Falls, NY: The Wappingers Falls, New York data-center lease was for approximately 72,000 square feet of warehouse space, which houses the data-center and recovery-center. This 10-year lease commenced August 4, 2000 and on April 17, 2007, the Company executed a lease modification and extension agreement related to this lease. Under the agreement, the Company exercised its option to extend the lease term on the original premises for an additional 10 years and agreed to lease an additional 16,000 square feet of space. The agreement calls for increasing rental payments for both the original and additional space, and has a termination date of October 31, 2020.

On June 27, 2008, the Company executed a second lease modification agreement for its data-center facility in Wappingers Falls, New York. The modification provides for an additional 10,000 square feet of rentable space and is coterminous with the lease modification and extension agreement dated April 17, 2007. The modification calls for increasing rental payments over the term of the modification.

On September 25, 2012, the Company executed a third lease amendment for its data center facility in Wappingers Falls, New York. The amendment provides for an additional 5,700 square feet of rentable space and is coterminous with the lease modification and extension agreement dated April 17, 2007. The amendment calls for increasing rental payments over the term of the lease.

The Company maintains approximately $300 related to a security deposit in a money market account. This is included in security deposits on the consolidated balance sheets as of December 31, 2014, 2013 and 2012.

Riverbend Data-Center, Stamford, Connecticut: On October 14, 2006, the Company entered into an agreement to lease property located in Stamford, Connecticut under the terms of an operating lease. The lease is for approximately 30,000 square feet of warehouse space, which houses a data-center. The lease commenced on October 1, 2007 and terminates on October 1, 2017. Under the terms of the agreement, the Company was required to fund a standby letter of credit for $400 with a third-party financial institution as a security deposit with regard to this lease. Such deposit will be released to the landlord upon termination of the lease. The Company has the rights to all interest earned on the security deposit. The lease provides for an additional 10-year renewal option at the discretion of the Company.

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 9. Lease Obligations (Continued)

Riverbend Recovery-Center, Stamford, Connecticut: On November 1, 2007, the Company executed a lease agreement for approximately 10,000 square feet of office space in Stamford, Connecticut dedicated as a work recovery area. The original lease had a term of 10 years, which would have terminated on October 31, 2017, but was amended in May 2012 (see below). Under the terms of the original agreement, the Company was required to fund a standby letter of credit for $150 with a third-party financial institution as a security deposit with regard to the lease. The Company has the rights to all interest earned on the security deposit. The lease calls for increasing rental payments over the term of the lease, and all rental payments are due monthly in advance. The lease provides for an additional 10-year renewal option at the discretion of the Company.

On May 27, 2008, the Company executed the first, second, and third amendment to the November 1, 2007 lease for its work recovery area in Stamford, Connecticut. The amendments provide for an additional 10,000 square feet of rentable space commencing June 1, 2008 and is coterminous with the original lease, which would have terminated on October 31, 2017, but was amended in May 2012 (see below). The amendments allow for the Company to occupy an additional 10,000 square feet in one-third increments effective June 2008, June 2009, and June 2010. The amendments call for increasing rental payments over the term of the amendment, and all payments are due monthly in advance.

On May 4, 2012, the Company executed the fourth, fifth, and sixth amendments to the November 1, 2007 lease for its work recovery area in Stamford, Connecticut. The amendments provide for an additional 10,000 square feet of rentable space commencing August 1, 2012. The amendments allow for the Company to occupy an additional 10,000 square feet in one-third increments effective August 2012, August 2013, and August 2014. The amendments call for increasing rental payments over the term of the amendment, and all payments are due monthly in advance. Along with the increased space, the lease also extended the term 3 years, now terminating on October 31, 2020. In addition, the Company was required to increase the standby letter of credit by $50 bringing the total standby letter of credit balance to $200.

Totowa Data-Center and Recovery-Center, Totowa, New Jersey: On February 13, 2009, the Company entered into an agreement to lease property located in Totowa, New Jersey under the terms of an operating lease. The lease is for approximately 154,000 square feet of warehouse space, which houses a data- center and recovery-center. The lease commenced on July 1, 2009 and terminates on June 30, 2024. Under the terms of the agreement, the Company was required to fund a standby letter of credit for $3,000 with a third-party financial institution as a security deposit with regard to this lease, which was subsequently reduced to $1,500 as per the terms of the agreement. Included in security deposits as of December 31, 2014, 2013 and 2012 is $1,500 for the funded letter of credit. The Company also has a Restoration Obligation due at lease termination in the amount of $1,500, provided, however, that if the Company exercises its first 10-year renewal option, such Restoration Obligation shall be extinguished and the remaining deposit of $1,500 shall be returned to the Company at the expiration of the renewal term. The Company has the rights to all interest earned on the security deposit. The lease provides for two additional 10-year renewal option at the discretion of the Company.

Totowa Recovery-Center, Totowa, New Jersey: In September 2013, the Company executed a lease agreement for approximately 28,000 square feet of office space in Totowa, New Jersey dedicated as a work recovery area. The lease commenced on October 1, 2013 and terminates on February 29, 2020 and calls for increasing rental payments during the lease period. The Company was required to fund a security deposit in the amount of $84 in either cash or a standby letter of credit. The lease provides for an additional 5-year renewal option at the discretion of the Company.

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 9. Lease Obligations (Continued)

Administrative Offices, Shelton, Connecticut: The Company had a lease agreement for approximately 8,000 square feet of office space in Shelton, Connecticut, which expired on October 31, 2014. Under the terms of the agreement, the Company was required to fund a standby letter of credit for $80 with a third-party financial institution as a security deposit with regard to the lease. Such deposit will be released to the landlord upon termination of the lease. The security deposit was returned in February 2015.

Norwalk Data-Center and Recovery-Center, Norwalk, Connecticut: On July 12, 2012, the Company entered into an agreement to lease property located in Norwalk, Connecticut under the terms of an operating lease. The lease is for approximately 168,000 square feet of warehouse space, which houses a data- center and recovery-center. The lease commenced on December 9, 2013 and terminates on March 31, 2035 and calls for increasing rental payments during the lease period. Under the terms of the agreement, the Company was required to fund a standby letter of credit for $8,000 with a third-party financial institution as a security deposit with regard to the lease consisting of $5,000 as “security deposit” under the lease and $3,000 as “Tenant Base Building Security Deposit.” Upon the completion of the Tenant’s Base Building Work, the $3,000 Tenant Base Building Security Deposit shall be released to the Company. The lease also provides an opportunity for the Company to reduce the security Deposit portion under the lease after the 3rd anniversary date of the Rent Commencement Date upon achieving certain annual EBITDA amounts. The minimum security deposit at all times shall not be less than $3,672. The Company has the rights to all interest earned on the security deposit. The lease provides for one additional 10-year renewal option at the discretion of the Company and also provides for the First Opportunity to Purchase Rights to the lease building.

In December 2013, the Company received a refund of $2,250 from the reduction of its standby letter of credit related to the Tenant’s Base Building Security Deposit. In August 2014, the Company received a refund of $750 to complete the release of the Tenant Base Building Security Deposit.

The Company is deemed the accounting owner for all facilities described above, with the exception of the administrative offices in Shelton, Connecticut. Deemed landlord financing obligations for these facilities as of December 31, 2014, 2013 and 2012 were $106,894, $103,918 and $96,441, respectively.

Anticipated future minimum payments for data-center facilities required under the terms of these noncancelable leases are as follows as of December 31:

Deemed Landlord Year Ending December 31, Financing

2015 $ 8,399 2016 9,842 2017 10,201 2018 10,016 2019 10,192 Thereafter 79,644 $ 128,294

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 9. Lease Obligations (Continued)

In addition, the Company maintains several noncancelable operating leases and network contracts primarily for computer equipment and network line access that expire over a three-year period. Expenses for operating leases and network contracts were $4,690, $4,680, and $4,536 for the years ended December 31, 2014, 2013 and 2012, respectively.

The Company also maintains several noncancelable capital leases primarily for computer, telecommunications, and other equipment that expire at various times over a three- to five-year period. At December 31, 2014, 2013 and 2012, the gross amounts of equipment under capital leases, and the related accumulated depreciation included in property and equipment in the consolidated balance sheets are as follows:

2014 2013 2012

(As Restated) (As Restated) (As Restated)

Computer equipment and software $ 7,166 $ 5,607 $ 5,117 Machinery and equipment 2,791 2,791 2,791 9,957 8,398 7,908 Less accumulated depreciation 7,524 6,622 5,680 Net book value $ 2,433 $ 1,776 $ 2,228

Anticipated future minimum lease obligations under noncancelable operating and capital leases and network contracts are as follows as of December 31, 2014:

Year Ending December 31, Operating Capital

2015 $ 3,758 $ 546 2016 1,580 520 2017 884 344 2018 353 146 2019 163 60 Total minimum lease payments $ 6,738 1,616 Less imputed interest 91 Present value of minimum lease payments $ 1,525

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 10. Term Loans and Lines of Credit

On February 8, 2013, the Company entered into a new credit facility with new lenders consisting of a First Lien (the First Lien) and a Second Lien (the Second Lien), collectively the “Term Loan.” The First Lien consists of (i) a revolving credit facility (the Revolving Credit Facility) (including a letter of credit sub-facility, the Letter of Credit) in a maximum amount not to exceed the Revolving Facility Cap (the Revolving Facility Cap), (ii) a Term Loan (the First Lien Term Loan) in an aggregate original principle amount of $100,000, and (iii) Delayed Draw Term Loan (the Delayed Draw Term Loan) in a maximum aggregate initial funded amount not to exceed $15,000. The Company has the right for additional indebtedness including a new term loan facility (the First Lien Incremental Term Facility) and an increased revolving loan commitment in an amount not to exceed $55,000, less the aggregate principle amount of all incremental loans under the Second Lien Agreement. Proceeds from the First Lien are available to provide funding for the build-out of its Norwalk data-center and for distributions to all members (see Note 12). The maturity date for the Revolving Credit Facility and the First Lien Term Loan is February 8, 2018. Any outstanding Letter of Credit matures the earlier of five business days prior to the scheduled maturity date for the Revolving Credit Facility and one year after its date of issuance provided any Letter of Credit with a one-year term may provide for the renewal of additional one-year periods (which can’t extend beyond the Revolving Credit Facility maturity date).

The outstanding Revolving Credit Facility that are LIBOR Loans and Letter of Credit shall bear interest at an amount equal to LIBOR plus 4.25% per annum, and with respect to Revolving Credit Facility that are Prime Rate loans, an amount equal to Base Rate plus 3.25%. With respect to the First Lien Term Loan or Delayed Draw Term Loan that are LIBOR Loans shall bear interest at an amount equal to LIBOR plus 4.75% per annum, and with respect to First Lien Term Loan or Delayed Draw Term Loan that are Prime Rate Loans, an amount equal to Base Rate plus 3.75% per annum. At December 31, 2013, the interest rate on all outstanding debt under the First Lien Agreement was primarily based on the LIBOR, as elected by the Company, and such rate was LIBOR plus 4.75%. The notes payable are collateralized by all the assets of the Company and include several restrictive financial covenants.

Under the First Lien Agreement, the Company is required to pay unused line fees of 0.5% per annum of the amount equal to the difference between a) the Revolving Facility Cap (end of each day during the preceding calendar quarter), and the sum of the daily average amount of the outstanding principal balance of all revolving advances (end of day) plus the letter of credit usage (end of day in each case for the preceding quarter). The Company is required to pay a Delayed Draw Term Loan Availability Period Fee in an amount equal to 0.75% per annum of the difference between the Delayed Draw Term Loan commitments (end of day) and the daily average sum of the initial principal amount of all delayed draw term loans funded (end of day during the preceding quarter). The Company is required to pay a Letter of Credit Fee at a rate equal to the applicable margin for LIBOR, with respect to the Revolving Credit Facility, with payment due the earlier of the expiration date of the Letter of Credit and surrender of line of credit issuer for cancellation at a rate of 0.125% per annum.

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 10. Term Loans and Lines of Credit (Continued)

The Second Lien consists of a Term Loan (the Second Lien Term Loan) in an original principal amount of $50,000 and an Incremental Term Loan (the Incremental Term Loan). Under the Incremental Term Loan, the borrower has the right to incur additional indebtedness of new term loan facilities of up to $55,000, less all incremental loans from the First Lien. Proceeds from the Second Lien Term Loan are available for capital expenditure, working capital and distributions to all members (see Note 12). The maturity date for the Second Lien facility is February 8, 2019. The Second Lien Term Loan that is a LIBOR loan shall bear interest at an amount equal to LIBOR plus 8.75% per annum with a 1.25% LIBOR floor; and with respect to the Second Lien Term Loan that is a Prime rate loan, an amount equal to Base Rate plus 7.75% per annum. With respect to any Incremental Term Loan, shall bear interest at any applicable interest rate basis agreed upon by the Borrower and Lenders making such Incremental Facility. At December 31, 2014, the interest rate on all outstanding debt under the Second Lien agreement was based on the LIBOR, as elected by the Company, and such rate was 10%. The notes payable are collateralized by all the assets of the Company and include several restrictive financial covenants.

On April 28, 2014, the Company amended both the First and Second Liens. The amended terms provided an expansion add back as defined under the agreement and amendments to various financial covenants.

At December 31, 2014, 2013 and 2012, the outstanding obligation on the Term Loan was $148,000, $150,000 and $19,100, respectively. At December 31, 2014, 2013 and 2012, outstanding borrowings on the Revolving Facility were $3,000, $0 and $0, respectively. At December 31, 2014, 2013 and 2012, the outstanding borrowings on the Delayed Draw Term Loan were $15,000, $15,000 and $0.

Pursuant to the First Lien and Second Lien Agreements, the Company is required to comply with various financial covenants.

Interest expense on the Term Loans, Delayed Draw Term Loan and Revolving Credit Facility was approximately $10,998, $9,116, and $2,315 for the years ended December 31, 2014, 2013 and 2012, respectively.

Anticipated future minimum principal payments on the Term Loan are as follows:

Year Ending December 31,

2015 $ 3,450 2016 11,500 2017 11,500 2018 89,550 2019 50,000 $ 166,000

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 11. Concentration of Risk

Financial instruments that potentially subject the Company to concentration of credit risk consist primarily of trade receivables. At December 31, 2014 and 2013, the Company had accounts receivable from one customer representing approximately 10% and 11%, respectively, of trade receivables. At December 31, 2012, the Company had accounts receivable from two customers representing approximately 23% of trade receivables.

During the years ended December 31, 2014 and 2013, the Company’s revenue from one customer represented approximately 9% and 9%, respectively, of total revenue. During the year ended December 31, 2012, the Company made sales to two customers representing approximately 18% of total revenue.

Note 12. Related Party

At December 31, 2014, 2013 and 2012, accounts receivable from a Series B unit holder totaled approximately $609, $352 and $275, respectively. During the years ended December 31, 2014, 2013 and 2012, the Company recorded revenues for data center services totaling approximately $3,157, $3,176, and $2,987, respectively, to the Series B unit holder.

Note 13. Members’ Equity

Cervalis LLC was initially formed on April 4, 2000 as a Delaware single member limited liability company that exists in perpetuity. On August 10, 2010, Holdings LLC was formed in the State of Delaware as a limited liability company. Following the formation, the members of Cervalis LLC contributed ownership interests in Operating LLC to Holdings LLC.

The total authorized units which the Company has authority to issue consist of 986,885 Series A Preferred Units, 600,000 Series B Preferred Units, and 1,710,032 Common Units (the Authorized Number of Common Units), provided that the maximum number of Common Units issued and outstanding at any one time shall be the Authorized Number of Common Units reduced by the number of Common Units Equivalents, as defined in the Amended and Restated Employee Unit Plan, effective as of September 3, 2010 (the Employee Unit Plan) of the Employee Units then issued and outstanding; and 190,004 Equity Incentive Units (the Authorized Number of Equity Incentive Units), provided that the maximum number of Equity Incentive Units issued and outstanding at any one time shall be the Authorized Number of Equity Incentive Units reduced by the number of Employee Units issued under the Cervalis Employee Unit Plan II, as of October 29, 2010 (and, for the avoidance of doubt, not the Employee Units issued under the Employee Unit Plan) then outstanding.

As of December 31, 2014, 2013 and 2012, the Company had 986,885 Series A Preferred Units, 600,000 Series B Preferred Units, 107,029 Common Units, and 182,500 Equity Incentive Units issued and outstanding.

The Company shall make distributions to the members in respect of their Units at any time and from time to time as determined by the board of directors at its sole discretion. To the extent that distributions are made, such distributions shall be distributed to the members in the order of priority. Series B Preferred Unit holders shall rank senior to Series A Preferred Unit holders and Common Unit holders upon liquidation.

Series B Unit Holders are entitled to a “Series B Preferred Amount” equal to $79,256.

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 13. Members’ Equity (Continued)

Each unit of Series B Preferred Units shall be convertible, at the option of the holder, at any time into such number of fully paid and nonassessable shares of Common Units as determined by dividing the Series B Original Issue Price by the Series B Conversion Price. The conversion price may be adjusted upon the occurrence of certain events as disclosed in the Agreement. The initial conversion ratio is set at one-to-one. In order to prevent dilution of the conversion rights, the Series B Conversion Ratio shall be subject to adjustment from time-to-time pursuant to terms of the Members’ Agreement.

Each unit of Series A Preferred Units shall be convertible, at the option of the holder, at any time into such number of fully paid and nonassessable Common Units as determined by dividing the Series A Original Issue Price by the Series A Conversion Price. The conversion price may be adjusted upon the occurrence of certain events as disclosed in the Agreement. The initial conversion is set at one-to-one. In order to prevent dilution of the conversion rights, the Series A Conversion Ratio shall be subject to adjustment from time-to-time pursuant to terms of the Members’ Agreement.

On February 8, 2013, the Second Amended and Restated Members Agreement of Holdings LLC (the Restated Holdings LLC Agreement) was adopted. The purpose and effect of the amendment was to amend and restate the Holdings LLC Agreement (third amended and restated Holdings LLC Agreement) and the limited liability company agreement of Cervalis LLC (seventh amended and restated LLC Agreement) as a performance of the obligations by the lenders of the First Lien Credit Agreement and the Second Lien Credit Agreement for the purposes of effecting a distribution to the Members.

Concurrent with obtaining the funding from the Term Loans (see Note 9), the Company distributed funds totaling $110,000. Approximately $101,600 was distributed pro rata to the Series A and Series B Preferred Unit Holders. Approximately, $7,400 was distributed pro rata to the Common Unit holders. The remaining funds of approximately $1,000 were distributed to the employee unit holders.

Note 14. Stock-Unit-Based Compensation Plans and Restricted Units

Units issued under the EUP vest over a three-year period and are forfeited by the employee upon termination. The exercise price of units issued equals the fair value of the units on the date of grant. Units issued are payable only upon a liquidation event as defined by the EUP. As the realization of value of units issued is based upon a performance condition to be determined in the future, the Company has assessed the probability of such event happening as nil as of December 31, 2014, 2013 and 2012. As such, no compensation expense was recorded for the issuance of units during 2014, 2013 or 2012. Such probability will be reviewed at each reporting period, and if probability of such an event becomes likely, the Company will record compensation expense.

Cervalis Holdings LLC and Subsidiary

Notes to Consolidated Financial Statements (in thousands)

Note 14. Stock-Unit-Based Compensation Plans and Restricted Units (Continued)

Units issued, forfeited, outstanding and vested under the EUP are as follows:

Number of

Employee

Common

Units

Nonvested at December 31, 2011 18,775 Granted — Forfeited (224) Nonvested at December 31, 2012 18,551 Granted 24,000 Forfeited (2,537) Nonvested at December 31, 2013 40,014 Granted 12,000 Forfeited (746) Nonvested at December 31, 2014 51,268

Vested at December 31, 2014 20,268

27 Exhibit 99.3

CYRUSONE INC. AND SUBSIDIARIES

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

The following Unaudited Pro Forma Condensed Combined Balance Sheet as of March 31, 2015 and the Unaudited Pro Forma Condensed Combined Statements of Operations for the three months ended March 31, 2015 and for the year ended December 31, 2014 have been derived from the historical consolidated financial statements of CyrusOne Inc. (together with its subsidiaries, the “Company”) and Cervalis Holdings LLC (“Cervalis”), as adjusted to give effect to the merger of Cervalis with a wholly owned subsidiary of CyrusOne LP (the “Merger”) and the incurrence of additional debt under CyrusOne LP’s senior unsecured revolving credit facility and senior unsecured term loan (collectively, the “Transactions”), and are intended to reflect the impact of the Transactions on the Company on a pro forma basis as of and for the periods indicated. The Unaudited Pro Forma Condensed Combined Financial Information does not give effect to any potential additional permanent financing of the Merger.

The Unaudited Pro forma Condensed Combined Financial Information has been prepared by the Company using the acquisition method of accounting in accordance with Financial Accounting Standards Board Accounting Standards Codification (“ASC”) Topic 805, Business Combinations. The fair value of identifiable tangible and intangible assets acquired and liabilities assumed from the Merger are based on a preliminary estimate of fair value using assumptions described in the accompanying notes to the Unaudited Pro Forma Condensed Combined Financial Information that the Company believes are reasonable.

The final purchase price allocation for the Transactions will be performed as soon as practicable after the closing of the Merger and will depend on final asset and liability valuations, which may depend in part on prevailing market rates and conditions. These final valuations will be based on the actual net tangible and intangible assets that exist as of the closing of the Merger. Any final adjustments may change the allocations of the purchase price, which could affect the fair value assigned to the assets acquired and liabilities assumed and could result in a change to the Unaudited Pro Forma Condensed Combined Financial Information, including the amount of goodwill. Therefore, the result of the final purchase price allocation could be materially different from the preliminary allocation set forth herein.

The following Unaudited Pro Forma Condensed Combined Financial Information is based on, and should be read in conjunction with:

· The historical audited consolidated and combined financial statements of the Company and the related notes and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in its Annual Report on Form 10-K for the fiscal year ended December 31, 2014, as filed with the Securities and Exchange Commission (“SEC”) on February 27, 2015;

· The historical unaudited condensed consolidated interim financial statements of the Company and the related notes and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in its quarterly report on Form 10-Q for the three months ended March 31, 2015, as filed with the SEC on May 08, 2015;

· The historical audited consolidated balance sheet of Cervalis as of December 31, 2014 and the consolidated statements of operations and members’ deficit and cash flows for the year ended December 31, 2014 (included as Exhibit 99.2 to the Current Report on Form 8-K of which this financial information forms an exhibit); and,

· The historical unaudited consolidated balance sheet of Cervalis as of March 31, 2015 and the consolidated statements of operations and members’ deficit and cash flows for the three months ended March 31, 2015 (included as Exhibit 99.1 to the Current Report on Form 8-K of which this financial information forms an exhibit).

The Unaudited Pro Forma Condensed Combined Balance Sheet reflects the Transactions as if they had been consummated on March 31, 2015 and includes pro forma adjustments for preliminary valuations by management of certain tangible and intangible assets.

The Unaudited Pro Forma Condensed Combined Statement of Operations for the year ended December 31, 2014 combines the Company’s historical results for the year ended December 31, 2014 with Cervalis’ historical results for the year ended December 31, 2014 and the Unaudited Pro Forma Condensed Combined Statement of Operations for the three months ended March 31, 2015 combines the Company’s historical results for the three months ended March 31, 2015 with Cervalis’ historical results for the three months ended March 31, 2015. The Unaudited Pro Forma Condensed Combined Statements of Operations gives effect to the Transactions as if they had been consummated on January 1, 2014.

The Unaudited Pro Forma Condensed Combined Financial Information has been prepared to reflect adjustments to the Company’s historical consolidated financial information that are (i) directly attributable to the Transactions, (ii) factually supportable and (iii) with respect to the Unaudited Pro Forma Condensed Combined Statement of Operations, expected to have a continuing impact on the combined results. The differences between the actual valuations reflected in the Company’s future balance sheets and the current estimated valuations used in preparing the Unaudited Pro Forma Condensed Combined Financial Information may be material and may affect amounts, including depreciation and amortization expense, which the Company will recognize in its statement of operations following the Merger.

The Unaudited Pro Forma Condensed Combined Financial Information is presented for informational purposes only and is not necessarily indicative of the operating results or financial position that actually would have been achieved if the Transactions had occurred on the dates indicated or that may be achieved in future periods. The Unaudited Pro Forma Condensed Combined Financial Information should be read in conjunction with the financial statements of the Company and Cervalis. It also does not reflect any cost savings, operating synergies or revenue enhancements that the Company may achieve with respect to combining the companies or costs to integrate the business or the impact of any non-recurring activity and any one-time transaction related costs. Synergies and integration costs have been excluded from consideration because they do not meet the criteria for unaudited pro forma adjustments.

CYRUSONE INC. UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET AS OF MARCH 31, 2015

Historical Cervalis Holdings Pro Forma LLC Pro Forma Combined

(in millions, except for shares and per share amounts) CyrusOne Inc. (See Note 3) Adjustments Note Reference Company Assets Investment in real estate: Land $ 93.0 $ — $ — $ 93.0 Buildings and improvements 820.8 112.0 (52.9) 4(b) 879.9 Equipment 382.7 119.7 (19.1) 4(b) 483.3 Construction in progress 121.0 38.2 (2.0) 4(b) 157.2 Subtotal 1,417.5 269.9 (74.0) 1,613.4 Accumulated depreciation (350.1) (88.9) 88.9 4(b) (350.1) Net investment in real estate 1,067.4 181.0 14.9 1,263.3 Cash and cash equivalent 26.0 4.4 (20.4) 4(a) 10.0 Rent and other receivables, net of allowance for doubtful accounts 53.9 5.6 — 59.5 Goodwill 276.2 — 190.1 4(b) 466.3 Intangible assets, net of accumulated amortization 65.3 — 121.6 4(b) 186.9 Due from affiliates 1.4 0.3 — 1.7 Other assets 86.4 16.4 (1.3) 4(b), 4(c) 101.5 Total assets $ 1,576.6 $ 207.7 $ 304.9 $ 2,089.2 Liabilities and equity Accounts payable and accrued expenses $ 67.1 $ 7.8 $ — $ 74.9 Deferred revenue 65.5 8.7 (1.3) 4(b) 72.9 Due to affiliates 9.1 — — 9.1 Capital lease obligations 12.6 1.4 — 14.0 Long-term debt 679.8 168.2 222.0 4(c) 1,070.0 Other financing arrangements 51.3 100.3 15.5 4(b) 167.1 Total liabilities 885.4 286.4 236.2 1,408.0 Equity Common stock 0.4 — — 0.4 Additional paid in capital 518.9 — — 518.9 Accumulated deficit (72.5) (78.7) 72.7 4(c), 4(d) (78.5) Accumulated other comprehensive loss (0.6) — — (0.6) Total shareholder’s equity 446.2 (78.7) 72.7 440.2 Noncontrolling Interest 245.0 — (4.0) 4(e) 241.0 Total equity 691.2 (78.7) 68.7 681.2 Total liabilities and equity $ 1,576.6 $ 207.7 $ 304.9 $ 2,089.2

CYRUSONE INC. UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS FOR THE THREE MONTHS ENDED MARCH 31, 2015

Historical

Cervalis Holdings Pro Forma

LLC Pro Forma Combined

(in millions, except for shares and per share amounts) CyrusOne Inc. (See Note 3) Adjustments Note Reference Company Revenue $ 85.7 $ 20.4 $ (0.1) 5(a) $ 106.0 Costs and expenses: Property operating expenses 32.3 9.2 — 41.5 Sales and marketing 2.9 0.7 — 3.6 General and administrative 9.1 0.9 — 10.0 Depreciation and amortization 31.1 5.7 (0.1) 5(b) 36.7 Transaction costs 0.1 0.1 — 0.2 Asset impairments 8.6 — — 8.6 Total costs and expenses 84.1 16.6 (0.1) 100.6 Operating income 1.6 3.8 — 5.4 Interest expense 8.4 4.5 (1.4) 5(d), 5(e) 11.5 Net (loss) income before taxes (6.8) (0.7) 1.4 (6.1) Income tax expense (0.4) — (0.2) 5(f) (0.6) Net loss (7.2) (0.7) 1.2 (6.7) Noncontrolling interest in net loss (2.9) — 0.2 5(g) (2.7) Net loss attributed to common shareholders $ (4.3) $ (0.7) $ 1.0 $ (4.0) Basic weighted average common shares outstanding 36.9 36.9 Diluted weighted average common shares outstanding 36.9 36.9 Loss per share - basic and diluted $ (0.12) $ (0.11) Dividend declared per share $ 0.315 $ 0.315

CYRUSONE INC. UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 2014

Historical

Cervalis Holdings Pro Forma

LLC Pro Forma Combined

(in millions, except for shares and per share amounts) CyrusOne Inc. (See Note 3) Adjustments Note Reference Company Revenue $ 330.9 $ 69.0 $ (0.9) 5(a) $ 399.0 Costs and expenses: Property operating expenses 124.5 29.2 — 153.7 Sales and marketing 12.8 2.9 — 15.7 General and administrative 34.6 3.7 — 38.3 Depreciation and amortization 118.0 21.4 — 5(b), 5(c) 139.4 Transaction costs 1.0 0.3 — 1.3 Total costs and expenses 290.9 57.5 — 348.4 Operating income 40.0 11.5 (0.9) 50.6 Interest expense 39.5 17.9 (5.4) 5(d), 5(e) 52.0 Loss on extinguishment of debt 13.6 — — 13.6 Net loss income before taxes (13.1) (6.4) 4.5 (15.0) Income tax expense (1.4) — (0.8) 5(f) (2.2) Net loss (14.5) (6.4) 3.7 (17.2) Noncontrolling interest in net loss income (6.7) — (1.2) 5(g) (7.9) Net loss income attributed to common shareholders $ (7.8) $ (6.4) $ 4.9 $ (9.3) Basic weighted average common shares outstanding 29.2 29.2 Diluted weighted average common shares outstanding 29.2 29.2 Loss per share - basic and diluted $ (0.30) $ (0.35) Dividend declared per share $ 0.84 $ 0.84

CYRUSONE INC. AND SUBSIDIARIES

NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS

1. Description of Transaction

On April 28, 2015, CyrusOne LP entered into an Agreement and Plan of Merger (the “Merger Agreement”) that provides for the acquisition of Cervalis Holdings LLC (“Cervalis”) by CyrusOne LP (the “Merger”). Upon completion of the Merger, Cervalis will be an indirect, wholly-owned subsidiary of CyrusOne Inc. In consideration for the Merger, CyrusOne LP will pay $400.0 million, subject to working capital and net debt adjustments and excluding transaction-related expenses, in an all cash transaction. In addition, the Company agreed to assume approximately $122.2 million of indebtedness and financing obligations. The Unaudited Pro Forma Condensed Combined Financial Information assumes that the net purchase price will be paid using cash obtained under CyrusOne LP’s senior unsecured revolving credit facility and senior unsecured term loan. The Unaudited Pro Forma Condensed Combined Financial Information does not give effect to any potential additional permanent financing of the Merger.

2. Basis of Presentation

The Unaudited Pro Forma Condensed Combined Financial Information should be read in conjunction with the audited and unaudited consolidated financial statements of Cervalis included as exhibits to this Current Report on Form 8-K, as well as the Company’s audited and unaudited consolidated financial statements and the related notes and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in our Annual Report on Form 10-K for the fiscal year ended December 31, 2014 and in our Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2015.

The final purchase price allocation for the Merger will be performed as soon as practicable after the closing of the Merger and will depend on final asset and liability valuations, which may depend in part on prevailing market rates and conditions. These final valuations will be based on the actual net tangible and intangible assets that exist as of the closing of the Merger. Any final adjustments may change the allocations of the purchase price, which could affect the fair value assigned to the assets acquired and liabilities assumed and could result in a change to the Unaudited Pro Forma Condensed Combined Financial Information, including the amount of goodwill. Therefore, the result of the final purchase price allocation could be materially different from the preliminary allocation set forth herein.

The Unaudited Pro Forma Condensed Combined Financial Information included herein has been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and certain footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles have been condensed or omitted pursuant to such rules and regulations; however, management believes that the disclosures are adequate to make the information presented not misleading.

The Unaudited Pro Forma Condensed Combined Balance Sheet and Statement of Operations as of and for the three months ended March 31, 2015 were derived from CyrusOne Inc.’s unaudited condensed consolidated financial statements as of and for the three months ended March 31, 2015 and from Cervalis’ unaudited condensed consolidated financial statements as of and for the three months ended March 31, 2015, respectively.

The Unaudited Pro Forma Condensed Combined Statement of Operations for the year ended December 31, 2014 was derived from CyrusOne Inc.’s audited consolidated statement of operations for the year ended December 31, 2014 and from Cervalis’ audited consolidated statement of operations for the year ended December 31, 2014.

3. Reclassifications of Historical Cervalis

Financial information presented in the “Historical Cervalis Holdings LLC” columns in the Unaudited Pro Forma Condensed Combined Balance Sheet and Statement of Operations represents the historical balance sheet of Cervalis as of March 31, 2015 and the historical statement of operations of Cervalis for the year ended December 31, 2014 and for the three months ended March 31, 2015, respectively. Such financial information has been reclassified or classified to conform to the historical presentation in the Company’s consolidated financial statements as set forth below. Unless otherwise indicated, defined line items included in the footnotes have the meanings given to them in the historical financial statements of Cervalis.

Before Reclassification After

Reclassification Amount # Reclassification

Balance Sheet Net investment in real estate $ 181.0 $ (181.0) (1) $ — Buildings and improvements — 112.0 (1) 112.0 Equipment — 119.7 (1) 119.7 Construction in progress — 38.2 (1) 38.2 Accumulated depreciation — (88.9) (1) (88.9) Rent and other receivables, net of allowance for doubtful accounts 5.6 — (2) 5.6 Note receivable 0.3 (0.3) (2) — Due from affiliates — 0.3 (2) 0.3 Prepaid expenses 1.6 (1.6) (3) — Other assets 0.5 15.9 (3) 16.4 Deferred costs 0.8 (0.8) (3) — Long-term portion of other assets 1.9 (1.9) (3) — Long-term portion of note receivable 2.4 (2.4) (3) — Rental security deposits 7.5 (7.5) (3) — Long-term portion of deferred costs 1.7 (1.7) (3) — Accounts payable and accrued expenses 2.0 5.8 (4) 7.8 Accrued expenses 3.8 (3.8) (4) — Accrued fixed assets 0.6 (0.6) (4) — Note payable 5.5 (5.5) (5) — Deemed landlord financing 2.4 (2.4) (6) — Deferred revenue 8.0 0.7 (7) 8.7 Capital lease obligations 0.5 0.9 (8) 1.4 Long-term portion of accrued expenses 1.4 (1.4) (4) — Long-term debt 162.7 5.5 (5) 168.2 Other financing arrangements 97.9 2.4 (6) 100.3 Long-term portion of capital leases 0.9 (0.9) (8) — Long-term portion of deferred revenue 0.7 (0.7) (7) —

Statement of Operations - For the Year Ended December 31, 2014 Cost of services $ 50.6 $ (50.6) (1) $ — Property operating expenses — 29.2 (1) 29.2 General and administrative 4.0 (0.3) (2) 3.7 Depreciation and amortization — 21.4 (1) 21.4 Transaction costs — 0.3 (2) 0.3 Interest expense 18.3 (0.4) (3) 17.9 Interest income (0.4) 0.4 (3) — Statement of Operations - For the Three Months Ended March 31,

2015 Cost of services $ 14.9 $ (14.9) (1) $ — Property operating expenses — 9.2 (1) 9.2 General and administrative 1.0 (0.1) (2) 0.9 Depreciation and amortization — 5.7 (1) 5.7 Transaction costs — 0.1 (2) 0.1

Interest expense 4.6 (0.1) (3) 4.5 Interest income (0.1) 0.1 (3) —

Reclassification and classification of the Unaudited Pro Forma Condensed Combined Balance Sheet as of March 31, 2015:

(1) Represents disaggregation and reclassification of “Net investment in real estate” of $181.0 million into “Buildings and improvements” of $112.0 million, “Equipment” of $119.7 million, “Construction in progress” of $38.2 million and “Accumulated depreciation” of $88.9 million.

(2) Represents reclassification of “Rent and other receivables, net of allowance for doubtful accounts” of $0.3 million to “Due from affiliates” and reclassification of “Note receivable” of $0.3 million to “Rent and other receivables, net of allowance for doubtful accounts.”

(3) Represents reclassification of “Prepaid expenses” of $1.6 million, “Deferred costs” of $0.8 million, “Long-term portion of other assets” of $1.9 million, “Long-term portion of note receivable” of $2.4 million, “Rental security deposits” of $7.5 million and “Long-term portion of deferred costs” of $1.7 million to “Other assets” of $15.9 million.

(4) Represents reclassification of “Accrued expenses” of $3.8 million, “Accrued fixed assets” of $0.6 million and “Long-term portion of accrued expenses” of $1.4 million to “Accounts payable and accrued expenses” of $5.8 million.

(5) Represents reclassification of “Note payable” of $5.5 million to “Long-term debt.”

(6) Represents reclassification of “Deemed landlord financing” of $2.4 million to “Other financing arrangements.”

(7) Represents reclassification of “Long-term portion of deferred revenue” of $0.7 million to “Deferred revenue.”

(8) Represents reclassification of “Long-term portion of capital leases” of $0.9 million to “Capital lease obligations.”

Reclassification and classification of the Unaudited Pro Forma Condensed Combined Statement of Operations for the year ended December 31, 2014:

(1) Represents reclassification of “Cost of services” of $29.2 million to “Property operating expenses” and $21.4 million to “Depreciation and amortization.”

(2) Represents reclassification of “General and administrative” of $0.3 million to “Transaction costs.”

(3) Represents reclassification of “Interest income” of $0.4 million to “Interest expense.”

Reclassification and classification of the Unaudited Pro Forma Condensed Combined Statement of Operations for the three months ended March 31, 2015:

(1) Represents disaggregation and reclassification of “Cost of services” of $9.2 million to “Property operating expenses” and $5.7 million to “Depreciation and amortization.”

(2) Represents reclassification of “General and administrative” of $0.1 million to “Transaction costs.”

(3) Represents reclassification of “Interest income” of $0.1 million to “Interest expense.”

4. Unaudited Pro Forma Condensed Combined Balance Sheet Adjustments

The Unaudited Pro Forma Condensed Combined Statement of Operations reflect the effect of the following pro forma adjustments:

(a) Adjustment to reflect a decrease in cash and cash equivalents of $20.4 million according to the following sources and uses:

Sources of funds: Borrowings under senior unsecured credit facility(1) 390.2 Cash on hand 20.4 Total sources of funds $ 410.6 Uses of funds: Cash paid to sellers at closing $ 397.4 Accordion deferred financing 3.2 Transaction costs 10.0 Total uses of funds $ 410.6

(1) This adjustment reflects the assumption that, to consummate the Merger, CyrusOne LP will borrow $150.0 million under its senior unsecured term loan, which will bear interest at LIBOR plus 1.90% (estimated to be 2.17%) and an additional $240.2 million of debt under its senior unsecured revolving credit facility, which will bear interest at LIBOR plus 1.95% (estimated to be 2.22%).

(b) Adjustment to reflect the excess of purchase price over the estimated fair value of the net assets acquired. Under the acquisition method of accounting, the total estimated purchase price is allocated to Cervalis’ net tangible and intangible assets based on their estimated fair values at the date of the completion of the Merger. Below is a preliminary estimate of the purchase consideration for Cervalis and the adjustments to Cervalis’ book values to reflect the allocation of that purchase consideration to acquired identifiable assets and assumed liabilities.

Preliminary purchase consideration 400.00 Working capital adjustment (0.80) Other purchase price adjustments (1.80) Adjusted preliminary purchase consideration 397.40 Historical book value of net assets acquired Book value of Cervalis’s historical net assets acquired as of March 31, 2015 (78.70) Paydown of Cervalis historical debt 168.20 Adjusted value of net assets acquired 89.50 Excess purchase price over book value of net assets acquired 307.90 Adjustments to reflect preliminary fair value of net assets acquired Write off of Cervalis deferred costs in “Other assets” (4.50) Adjustment of investment in real estate gross amounts to fair value Buildings and improvements (52.9) Equipment (19.1) Construction in progress (2.0) Remove accumulated depreciation 88.9 Intangible assets acquired 121.6 Reduction to deferred revenue 1.30 Increase in fair value of financing obligation (15.50) Preliminary fair value adjustments 120.5 Estimated goodwill 190.1 Pro forma goodwill adjustment 190.1

Upon closing, the purchase consideration will be adjusted for working capital levels and other adjustments as stipulated in the Merger Agreement.

Upon completion of the fair value assessment, the final purchase price allocation may differ from the preliminary assessment provided above. Any changes to the initial estimates of the fair value of the assets and liabilities will be recorded as adjustments to those assets and liabilities and the residual amounts will be allocated as an increase or decrease to goodwill. The goodwill recorded is due primarily to the synergies expected to be realized between the two companies and the assembled workforce acquired in connection with the Merger.

Investment in real estate acquired consists of building and improvements with an estimated fair value of $59.1 million, equipment with an estimated fair value of $100.6 million and construction in process with an estimated fair value of $36.2 million. Investment in real estate is expected to be amortized on a straight-line basis over estimated useful lives of 2 - 48 years.

The components of investment in real estate have been valued using a combination of the income approach, the market approach and the cost approach, which is based on current replacement and/or reproduction cost of the asset as new, less depreciation attributable to physical, functional and economic factors.

The fair value of intangible assets acquired of $121.6 million consist of customer relationships (including the value of in-place customer contracts) with an estimated fair value of $119.3 million and the Cervalis tradename with an estimated fair value of $2.3 million. The customer relationship intangible assets are expected to be amortized on a straight-line basis over an estimated useful life of 15 years, while the Cervalis tradename is expected to have an indefinite useful life.

The fair value of intangible assets is determined primarily using the “income approach,” which is a valuation technique that provides an estimate of the fair value of an asset based on market participants’ expectations of the cash flows an asset would generate over its remaining useful life. Some of the more significant assumptions inherent in the development of the valuations include the estimated annual net cash flows for each indefinite lived or definite lived intangible asset (including net revenues, operating expenses, selling and marketing costs and working capital asset/contributory asset charges), the appropriate discount rate that appropriately reflects the risk inherent in each future cash flow stream, the assessment of each asset’s life cycle, competitive trends as well as other factors.

Long Term Debt Borrowings under senior unsecured credit facility $ 390.2 Paydown of Cervalis historical debt (168.2) Net change in long term debt $ 222.0

Deferred financing costs of $0.9 million relating to Cervalis debt that will be paid off in connection with the Merger have been eliminated from other assets, with a corresponding decrease to accumulated deficit. No adjustment has been made to the Unaudited Pro Forma Condensed Combined Statements of Operations for these costs as they are non-recurring.

(d) Adjustment eliminates Cervalis accumulated deficit of $78.7 million, net of $6.0 million of the Company’s transaction costs.

(e) Adjustment reflects the noncontrolling interest portion of the Company’s transaction costs of $4.0 million.

5. Unaudited Pro Forma Condensed Combined Statement of Operations Adjustments

The Unaudited Pro Forma Condensed Combined Statements of Operations reflect the effect of the following pro forma adjustments:

(a) Cervalis revenue includes the amortization of deferred set up fees. Those deferred set up fees are written off in acquisition accounting, and this adjustment removes the impact of the amortization of those fees, resulting in a decrease in revenue of $1.1 million and $0.2 million for the year ended December 31, 2014 and the three months ended March 31, 2015, respectively. In addition, certain Cervalis contracts have pricing that increases each year; revenue under those contracts is recognized on a straight-line basis over the contract period. Upon the application of acquisition accounting, the amount of revenue recognized on a straight-line basis under these contracts would have been higher by $0.2 million and $0.1 million for the year ended December 31, 2014 and for the three months ended March 31, 2015, respectively.

(b) Adjustment reflects a decrease to depreciation and amortization expense of $7.7 million and $2.1 million for the year ended December 31, 2014 and three months ended March 31, 2015, respectively, as a result of fair value accounting for investment in real estate and other fixed assets acquired and an increase to depreciation and amortization expense of $8.0 million and $2.0 million for the year ended December 31, 2014 and three months ended March 31, 2015, respectively, as a result of fair value accounting for definite-lived intangible assets acquired. For the year ended December 31, 2014, total real estate depreciation expense for Cervalis would have been $11.7 million and non-real estate depreciation expense would have been $1.7 million. For the three months ended March 31, 2015, real estate depreciation expense for Cervalis would have been $3.2 million and non- real estate depreciation expense would have been $0.4 million.

(c) Adjustment reflects the decrease of depreciation expense of $0.3 million and nil for the year ended December 31, 2014 and three months ended March 31, 2015, respectively, to estimate the impact of capitalizing Cervalis’ internal commissions and amortizing them over the contract period to conform with the Company’s policy for internal commissions.

(d) Adjustment reflects the assumption that, to consummate the Merger, CyrusOne LP will borrow $150 million under its senior unsecured term loan, which will bear interest at LIBOR plus 1.90% (estimated to be 7.17%), and an additional $239.6 million of debt under its senior unsecured revolving credit facility, which will bear interest at LIBOR plus 1.95% (estimated to be 2.22%). This adjustment reflects the increase in interest expense associated with this additional debt of $9.5 million and $2.4 million for the year ended December 31, 2014 and three months ended March 31, 2015, respectively. A hypothetical 0.125% increase or decrease in the expected weighted average interest rate would increase or decrease interest expense associated with this financing by $0.5 million annually and $0.1 million for a three month period.

(e) Adjustment reflects the reduction of interest expense of $3.0 million and $0.8 million for the year ended December 31, 2014 and three months ended March 31, 2015, respectively, as a result of acquisition accounting for assumed capital leases and financing obligations of Cervalis and a reduction of interest expense of $11.9 million and $3.0 million for the year ended December 31, 2014 and three months ended March 31, 2015, respectively, due to the settlement of Cervalis debt in connection with the Merger.

(f) Adjustment reflects the income tax effect for Unaudited Pro Forma Condensed Combined Statement of Operations adjustments using a 43% statutory tax rate applied to Cervalis managed services revenue. The statutory tax rate was determined using a 35% federal tax rate and a blended average state tax rate of 8% based on the jurisdictions in which Cervalis is located.

(g) Adjustment reflects the noncontrolling interest portion of Unaudited Pro Forma Condensed Combined Statement of Operations adjustments.