Q1 2021 Earnings Supplemental Data

May 14, 2021 Disclaimer Forward-Looking Statements: This presentation and the related conference call includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward looking statements reflect the current expectations of Diversey Holdings Ltd. and its (the “Company”) and projections with respect to, among other things, its financial condition, results of operations, plans, objectives, future performance, business, guidance, long term margins and other financial goals and value creation algorithms. These statements may be preceded by, followed by or include the words “anticipate,” “estimate,” “expect,” “project,” “plan,” “intend,” “believe,” “should“, "can have,” “likely,” “will,” “expect” and the negatives thereof and other words and terms of similar meaning. Forward-looking statements include all statements that are not historical facts. Forward- looking statements are based on information available at the time those statements are made and/or management’s good faith beliefs and assumptions as of that time with respect to future events. There is no assurance that any forward-looking statements will materialize. Such forward-looking statements are subject to various risks and uncertainties. Accordingly, there are or will be important factors that could cause actual outcomes or results to differ materially from those indicated in these statements. You are cautioned not to place undue reliance on forward- looking statements, which reflect expectations only as of this date. The Company undertakes no obligation to publicly update or review any forward-looking statement, whether as a result of new information, future developments or otherwise. Market and Industry Data: This presentation includes information concerning economic conditions, the Company’s industry, the Company’s markets and the Company’s competitive position that is based on a variety of sources, including information from independent industry analysts and publications, as well as the Company’s own estimates and research. The Company’s estimates are derived from publicly available information released by third party sources, as well as data from its internal research, and are based on such data and the Company’s knowledge of its industry, which the Company believes to be reasonable. The independent industry publications used in this presentation were not prepared on the Company’s behalf. This information involves many assumptions and limitations, and you are cautioned not to give undue weight to these estimates. The Company has not independently verified the accuracy or completeness of the data contained in these industry publications and other publicly available information. Accordingly, we make no representations as to the accuracy or completeness of that data nor do we undertake to update such data after the date of this presentation. Non-GAAP Measures: This presentation contains financial measures, including Adjusted EBITDA and EBITDA, which are not recognized under generally accepted principles in the United States (“GAAP”). The Company believes that non-GAAP financial information, when taken collectively, may be helpful to investors because it provides consistency and comparability with past financial performance and assists in comparisons with other companies, some of which use similar non-GAAP financial information to supplement their GAAP results. The non-GAAP financial information is presented for supplemental informational purposes only, and should not be considered a substitute for financial information presented in accordance with GAAP, and may be different from similarly-titled non-GAAP measures used by other companies. Adjusted EBITDA, and EBITDA have limitations as analytical tools, and you should not consider these measures either in isolation or as a substitute for other methods of analyzing the results as reported under GAAP. For a reconciliation of historical non-GAAP financial measures to the most closely comparable GAAP measures, see the appendix to this presentation.

2 Today’s Presenters

Phil Wieland Todd Herndon Chief Executive Officer Chief Financial Officer

3 First Quarter 2021 Highlights

• 2% top line growth vs pre-COVID baseline • Continued Adjusted EBITDA growth and margin expansion • No supply disruptions from Texas freeze • Implementing price increases to offset raw material inflationary environment • Significant net new business wins • Customer NPS at record levels • Meaningful progress on strategic plan

Q1 2021 Results Adjusted EBITDA $MM; % Margin * 92 93

14.1% 14.7% 52

8.4%

Q1 2019 Q1 2020 Q1 2021 (Pre-COVID Baseline) (COVID Year)

* See non-GAAP definitions and reconciliations in appendix 4 Market Leader in Hygiene, Infection Prevention, and Cleaning Solutions

Diversey At-a-Glance

95+ $2.6Bn 15%+ ~8,500 Years of History 2020 2020 Adj. EBITDA Margin (1) Employees

~$46Bn #1 or #2 80+ 1,400+ Market Opportunity Market Positions Countries Served Patents

Global, Diversified, and Balanced Business Model

2020 Revenue by Geography (2) 2020 Revenue by End Market (3) 2020 Revenue by Customer (1)

Other Top 1, 2% Distribution Hospitality 6% Top 2-5, 6% Europe 6% Channel Top 6-10, 6% Emerging Markets (2) 39% Healthcare 22% Dairy & 31% 14% Top 11-20, 6% Processed Food Manufacturing Facility Service Top 21-50, 8% 11% 12% Food Rest of North America Beverage Service 12% Customers 30% Manufacturing Retail / 72% 7% Grocery 10% Market Leading Scale in All Regions Infection Prevention Products: 31% 85,000+ Global Customers

Notes: 1. Based on year end 2020 results. See non-GAAP definitions and reconciliations in appendix 5 2. Based on 2020 . Emerging markets includes Eastern Europe 3. Based on year end 2020, Facility Services includes BSC and Education end markets What Makes Diversey an Exciting Opportunity The right company at the right time

Leadership in a Large, Advantaged Industry Significant Momentum Clear, Multifaceted Growth Plan

One of only two global scale players ~$600MM in investments, infrastructure built (1) Large whitespace + M&A opportunity

History of GDP+ market growth Positive secular tailwinds 20% Adj. EBITDA margins targeted long-term

Predictable, recurring, annuity-like demand Total portfolio + right team to execute History of innovation + sustainability

Proven Ability to Execute

Strategy Driving ~330bps in Adjusted EBITDA Margin Expansion (2) $MM; % Margin

$401 $322 $340 15.3% 13.0% 12.0%

2018 2019 2020

Notes: 1. Includes transformation and transition , restructuring costs, and capital expenditures for 2018-2020 6 2. Adj. EBITDA and margins shown on an actual FX basis; see non-GAAP definitions and reconciliations in appendix We Serve Our Customers Across Two Business Segments

 Broadest offering in the industry: cleaning chemicals and machines  Strong distributor relationships  Superior infection prevention portfolio  Exposure to high growth sub-segments  Trusted by customers on price, service, innovation  Global presence to serve international customers

Institutional Food & Beverage $1,995MM (76% of 2020 Revenue) $634MM (24% of 2020 Revenue) • Infection Prevention: Hard Surface & • Cleaning Products Personal Care • Engineering & Equipment Solutions • Floor & Building Care Chemicals • Knowledge-Based Services Kitchen & Mechanical Warewash • • Training Chemicals and Machines • Water Treatment • Fabric Care • Dosing & Dispensing Equipment • Floor Care Machines • Food Safety and End Markets End Markets

Healthcare Food Retail and Education Hospitality Building Alcoholic Non- Dairy Pharma Agriculture Processed Service Grocery Service Beverage Alcoholic Food Contractors Beverage

7 Large, Underpenetrated, and Fundamentally Attractive Market Opportunity

Structurally Attractive Market Dynamics… … Across the Total Addressable Market

Current Market Opportunity ($Bn) Mission-critical solutions

~$14 ~$46

Consumables business drives recurring revenue ~$32

Low customer spend relative to high of failure

Ecolab Diversey Serviceable Expansion Markets Total Addressable Market Customer preference for Addressable Market quality and reliability SAM Historical Expanding Aperture of Our Market Opportunity CAGR of ~3%

Source: Company Materials, Triton, Arizton, and Management Estimates 8 Sustainability is at Our Core “Win-Win-Win” solutions that benefit our customers, our employees, and the environment

Innovate Sustainable Solutions Our solutions are designed to drive water and energy savings for our customers, Innovate which in turn deliver cost savings Sustainable Improve the Environment Solutions We strive to reduce our environmental impact by limiting energy intensity, greenhouse gas emissions, waste, and water use Protect and Care for People Improve the Protect & Care for People Environment We prioritize safety and ethical business practices and work to improve the lives of those in the communities in which we operate

The More We Innovate, the More We Can Do For Our Clients, Enhancing Our Value, And Driving Greater Growth

9 Our Growth Plan is Clear, Compelling, and Multi-Faceted

Above Market Growth and 20% Adj. EBITDA Margin * lV Continued Accretive M&A III Expand Margins • Clear M&A Framework targeting accretive II deals F&B Growth • Strategic sourcing • Successful track I • Strategic pricing record of execution, • Win new customers Institutional • Supply chain integration, and results across target excellence A B geographies • Rich pipeline of • Operational targets across various $401MM Recovery Growth Initiatives • Cross-sell water excellence driving sectors and Adj. EBITDA * treatment services SG&A cost initiatives geographies • Sector recovery • Share gain in Infection post-COVID Prevention • Scale North America • Highly impacted Food Service sectors (e.g. food • Commercial excellence service and hospitality) • Expand in Emerging to return to pre-COVID Markets levels • Global Accounts • Innovation

2020 Long-Term Target

* See non-GAAP definitions and reconciliations in appendix 10 Update On Our Strategic Roadmap

Q1 2021 Update Outlook for Remainder of Year

• Expect easing in Q2 in US, UK and limited other markets Sector • Relatively slow market recovery in Q1 with lockdowns Recovery impacting all territories • More widespread reopening expected in Q3 and in some cases Q4 Institutional Growth • Residual efficacy product adding to IP portfolio • IP global roll out complete Growth • North America food service reopening • High volume with new IP contracts signed Initiatives • Continued commercial excellence and Global • Significant new wins in Global Accounts initiative pipeline delivery

• Rollout of new business already won • Record net new business wins F&B Growth • Continued pipeline delivery • First water treatment wins signed • Engagement in water treatment tenders

• Early benefits of supplier • Inflation likely to recede, but not until H2 Margin Expansion • Strong pricing in Q1 in anticipation of inflation • Further pricing being implemented • G&A savings continue on plan

• Complete diligence exercises M&A • Positive progress on pipeline • Continued focus on pipeline

11 Financial Overview First Quarter 2021 Financial Results

Pre-COVID Baseline COVID Year ($ in millions) Q1 2021 Q1 2019 ∆ vs. Q1 2019 Q1 2020 ∆ vs. Q1 2020 Net Sales $632 $618 2.2% $655 (3.6)%

Institutional $468 $460 1.7% $493 (5.2)%

Food & Beverage $164 $158 3.7% $162 1.3%

Adj. EBITDA* $93 $52 77.9% $92 0.5%

% Margin 14.7% 8.4% 630 bps 14.1% 60 bps

• 2.2% top line growth versus the 2019 pre-COVID baseline despite very heavy lockdowns impacting many customers in most parts of the world

• Adj. EBITDA* increased 77.9% versus Q1 2019 (+630 bps adj. EBITDA* margin) and 0.5% versus Q1 2020 (+60 bps adj. EBITDA* margin)

o Managed SG&A, pricing and supply chain costs to effectively mitigate gross margin pressure from mix

* See non-GAAP definitions and reconciliations in appendix 13 Q1 2021 Highlights – Institutional Segment

($ in millions) Q1 2021 Q1 2019 YoY Change Q1 2020 YoY Change (Pre-COVID Baseline) (vs. Q1 2019) (vs. Q1 2020) Revenue $468 $460 1.7% $493 (5.2%)

Adj. EBITDA* $71 $45 57.6% $81 (12.2%)

Adj. EBITDA Margin 15.2% 9.8% 540 bps 16.4% (120bps) Innovation in Action Highlights • Strongest performance in North America due to healthcare and infection prevention

• Decline vs 2020 driven by COVID impact, particularly in food service and hospitality sectors

• Continued success in the expansion of our leading global contract caterers position Degragerm 24™ Shield Provides continuous disinfection of frequently touched surfaces for up to 24 hours thanks to Advanced Polymer Technology (APT™)

* See non-GAAP definitions and reconciliations in appendix 14 Q1 2021 Highlights – Food & Beverage Segment

($ in millions) Q1 2021 Q1 2019 YoY Change Q1 2020 YoY Change (Pre-COVID Baseline) (vs. Q1 2019) (vs. Q1 2020) Revenue $164 $158 3.7% $162 1.3%

Adj. EBITDA* $32 $22 45.7% $26 23.2%

Adj. EBITDA Margin 19.5% 13.9% 560 bps 16.0% 350 bps Innovation in Action Highlights • Continue to win accounts based on our scale, service execution and technical expertise globally

• All core teams trained in water treatment

• Long term water treatment cross-sell opportunity estimated to be approximately 20% of our F&B cleaning and hygiene products we sell into existing accounts

* See non-GAAP definitions and reconciliations in appendix 15 Q1 2021 vs. Q1 2020 Bridges $MM Revenue 655 (43) (3) 17 5 632

Q1 2020 Revenue Institutional Food & Beverage FX M&A Q1 2021 Revenue

Adj. EBITDA * 92 (12) 93 5 2 1 4

Q1 2020Q1 2020 Adj. EBITDA EBITDA* Institutional Food & FX M&A Corporate Q1Q1 2021 2021 Adj. EBITDA EBITDA* Beverage

* See non-GAAP definitions and reconciliations in appendix 16 and Flow Considerations

Key & Balance Sheet Items Q1 2021

• Q1 2021 * of ($73M); compared to Q1 2020 free Instrument $ millions cash flow of ($60M) US Term Loan $871 Euro Term Loan $608 • Q1 2021 cash interest of $49M, compared to $37M in Q1 2020 Senior Notes $531 Revolver $0 Total Debt $2,009 • Funded Net debt** to adj. EBITDA ratio* of 4.7x at quarter-end Cash Balance $113 or 4.5x pro forma with subsequent exercise of option Funded Net Debt ** $1,896

• Approx. $650M of net IPO proceeds used to repay long term Funded Net Debt Evolution** 4.5x PF w/ debt or approx. $720M net IPO proceeds including greenshoe 7.2x 6.5x 6.1x 6.2x 6.3x greenshoe 4.7x • Expanded revolver capacity from $250M to $450M, resulting in Q1 2021 liquidity profile of $548M

2019A Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021

* See non-GAAP definitions and reconciliations in appendix 17 ** Funded Net debt is a non-GAAP measure; see non-GAAP definitions and reconciliations in appendix What Makes Diversey an Exciting Opportunity

Compelling Value Creation Algorithm

Market Growth + Above-Market Share Gains

+

Accretive M&A

+

Long-Term Targeted Adjusted EBITDA Margin Expansion to 20%

+

Significant Deleveraging Opportunities

+

Target Strong Free Cash Flow Conversion

=

Powerful Model for Shareholder Value Creation

18 APPENDIX A

Financial Reconciliations Non-GAAP Financial Measures

Three Months Three Months Three Months Three Months Twelve Months Three Months Ended Ended Three Months Three Months Ended Ended Three Months Three Months Ended Ended March December 31, September 30, Ended June 30, Ended March December 31, September 30, Ended June 30, Ended March December 31, (in millions) 31, 2021 2020 2020 2020 31, 2020 2019 2019 2019 31, 2019 2018 (loss) $ (95.7) $ (71.8) $ 13.0 $ 16.4 $ 3.9 $ (44.6) $ (7.1) $ (12.8) $ (44.5) (239.1) Income tax (benefit) (2.4) (14.7) 7.1 5.6 11.2 30.1 (1.2) 4.8 (1.0) 14.4 Interest 43.7 32.9 32.4 30.8 31.6 36.0 34.0 36.9 34.1 135.2 Interest income (0.9) (1.3) (1.2) (1.2) (2.2) (2.4) (1.8) (1.7) (1.6) (5.8) expense of intangible 24.3 24.2 24.8 24.6 24.6 25.1 22.8 22.9 22.9 91.2 expense included in cost of sales 20.8 25.1 21.4 21.2 21.8 22.9 20.8 21.0 19.7 73.4 Depreciation expense included in selling, general and administrative 2.0 1.7 2.3 1.9 2.0 3.1 1.4 1.6 1.3 7.6 EBITDA (8.2) (3.9) 99.8 99.3 92.9 70.2 68.9 72.7 30.9 76.9 Impairment of goodwill ------68.5 Transition and transformation costs and non-recurring costs 15.4 22.5 11.2 3.8 5.0 15.3 12.6 10.2 14.7 120.6 Restructuring costs 0.5 20.3 2.0 1.9 1.4 10.1 4.8 4.9 - 24.9 Foreign currency loss related to Argentina subsidiaries (2.0) 1.3 (0.3) (0.3) 0.9 4.7 1.5 4.2 1.0 3.4 Adjustment to tax indemnification - 1.4 0.1 1.3 - 6.2 0.7 0.2 - 31.0 Merger and acquisition-related cost - 0.1 0.9 - - 0.3 - - - 7.3 Acquisition accounting adjustments ------0.5 0.7 0.7 5.3 Bain Capital management fee 19.4 1.9 1.8 1.9 1.9 1.9 1.8 1.9 1.9 7.5 Non-cash pension and other post-employment benefit plan (3.8) (5.6) (3.5) (3.1) (3.1) (1.8) (2.3) (2.3) (2.4) (10.5) Unrealized foreign currency exchange loss (gain) 5.9 (7.5) (8.8) (0.5) (8.3) (1.1) 10.3 (2.7) 4.3 (16.3) Factoring and securitization fees 1.0 1.1 1.3 1.2 0.7 0.6 1.0 0.9 0.9 0.6 Share-based incentive compensation 63.5 66.4 0.5 0.3 0.3 3.0 - - - - Gain on sale of business and investments - - - - - (13.0) - - - - Other items 1.0 (1.7) 1.8 0.1 0.5 (2.1) 4.8 (1.9) 0.1 2.4 Non-GAAP Consolidated Adjusted EBITDA $ 92.7 $ 96.3 $ 106.8 $ 105.9 $ 92.2 $ 94.3 $ 104.6 $ 88.8 $ 52.1 $ 321.6

20 Non-GAAP Financial Measures

(in millions) March 31, 2021 December 31, 2020 September 30, 2020 June 30, 2020 March 31, 2020 December 31, 2019 Senior Secured Credit Facilities US Dollar Term Loan $ 870.8 $ 873.0 $ 875.2 $ 877.5 $ 879.8 $ 882.0 US Dollar Incremental Loan - 149.6 150.0 150.0 - - Euro Term Loan 607.9 1,146.9 1,096.5 1,061.0 1,055.9 1,062.5 Revolving Credit Facility - - - - 128.0 120.0 Senior Notes 530.7 548.5 523.1 504.8 501.1 503.0 Funded Debt 2,009.4 2,718.0 2,644.8 2,593.3 2,564.8 2,567.5 Less: Cash and cash equivalents (113.0) (192.9) (172.5) (171.8) (91.1) (126.1) Funded net debt $ 1,896.4 $ 2,525.1 $ 2,472.3 $ 2,421.5 $ 2,473.7 $ 2,441.4

21 Non-GAAP Financial Measures

Three Months Three Months Ended March Ended March 31, 2021 31, 2020 Cash used in operating activities $ (78.7) $ (56.2)

Collection of deferred factored receivables 24.4 18.0 Dosing and dispensing equipment (12.0) (14.6) Capital expenditures for property and equipment (6.4) (7.3)

Free Cash Flow $ (72.7) $ (60.1)

22 Non-GAAP Financial Measures

Net Sales by Segment Three Months Three Months Three Months Ended Ended Three Months Three Months Ended March December 31, September 30, Ended June 30, Ended March 31, 2021 2020 2020 2020 31, 2020 Institutional $ 467.9 $ 504.7 $ 522.5 $ 474.8 $ 493.4 Food & Beverage 163.6 162.7 158.6 151.0 161.5 Total $ 631.5 $ 667.4 $ 681.1 $ 625.8 $ 654.9

Adjusted EBITDA by Segment Three Months Three Months Three Months Ended Ended Three Months Three Months Ended March December 31, September 30, Ended June 30, Ended March 31, 2021 2020 2020 2020 31, 2020 Institutional $ 71.1 $ 83.2 $ 89.2 $ 83.1 $ 81.0 Food & Beverage 31.9 28.0 26.4 31.7 25.9 Total Segment Adjusted EBITDA 103.0 111.2 115.6 114.8 106.9 Corporate Costs (10.3) (14.9) (8.8) (8.9) (14.7) Consolidated Adjusted EBITDA $ 92.7 $ 96.3 $ 106.8 $ 105.9 $ 92.2

23 APPENDIX B

Supplemental Information on Strategic Roadmap I A Institutional – Dissecting 2020 … Foundation for Future Growth Market recovery of base is a tailwind for growth

Illustrative Institutional Revenue(1) Institutional Revenue(1) ($MM) Illustrative

1 2 Base Infection Prevention 1,995 returns to normalizes at higher Infection 2019 levels baseline than 2019 Prevention

1.8% Organic Growth at Constant Dollar* Infection Prevention

1,979 1,995 Base Base

2019 Base Hard Personal 2020 Base Hard Personal Long-Term 2020 Illustrative2023ELong- Surface Care Surface Care Term Infection Prevention Infection Prevention

Note: 1. Shown on an actual FX basis 25 * Organic is defined as net sales excluding acquisitions in the first year after closing and the impact of foreign currency translation I B Institutional – Continued Share Gain in Infection Prevention

Rapidly Growing Infection Prevention Market ($Bn) Diversey Has the Leading Product Portfolio

$2.8 Quat. AHP Bleach Leading Solutions Alcohol

$2.0 Efficacy   

Safety Profile

Easy to Use   

Broad Surface Compatibility   

Diversey’s Hospital Grade Product Portfolio Gaining Traction Across Healthcare and Other Markets 2019 2023

Fast Growing Market Where Diversey has a Track Record of Gaining Share

Source: Company Materials, Triton, Arizton, and Management Estimates 26 I B Institutional – Building Scale in North America Food Service Re-entered North America Food Service market in 2018 by winning two large food service operators

Leading Food • Won long term contract in January 2018 Leading Food • Won long term contract in October 2018 Service Operator A • Infrastructure built Service Operator B • Infrastructure built

~15,500 Combined Sites

Diversey Technical Service Representative Diversey Customer Sites:

First Wave

Second Wave

Leading Food Service Operator A

Leading Food Service Operator B

27 II Food & Beverage – Multiple Pathways for Growth

Drive Existing Sector and Market Strongholds Cross-Sell Water Treatment Services

Target attractive markets Capture new and existing customer demand

• Targeting local and regional customers • Exclusive joint venture with Solenis

• Adding hunting resources • Rare platform able to form joint venture

• Leveraging existing infrastructure • Growth via enhanced value proposition for bundled products

Select Markets to Target Incremental Opportunity to Cross-Sell Water Treatment Services

Spain Germany Brazil

Italy Poland Southeast India Asia Current F&B Net Illustrative Cross- Total Potential Sales Selling Opportunity Demand

28 III Levers to Achieve Long-term Adjusted EBITDA Margin Targets

Current Projects Strategy Value Levers

• Ensure supply continuity  Cost take out Strategic • Offset market inflation  Price protection Sourcing  Extend cash and supplier terms

• Pricing to grow margin  Set market based prices Strategic Pricing • Extract value from enhanced customer TCO  Pricing controls, guardrails, and infrastructure • Minimize effect of material cost inflation  Contracts terms/conditions

• Best service in market  Wypetech acquisition Supply Chain • Lower cost to serve  Reorganization of factory footprint • Optimize levels  Delivery efficiency program Excellence • Performance management  Cost savings funnel

Operational • Earnings Improvement Program (“EIP”)  Back office people and non-people savings Excellence

29 IV Programmatic M&A Strategy to Enhance Growth

Track Record of Successful Highly Attractive M&A Backdrop Clear M&A Framework M&A Execution and Integration Current Market Opportunity ($Bn)

~$14 ~$46 Expand Products, Services and Technologies 2020 2020

~$32 Acquire Human Capital

2019 2018

Strategic Control of Supply Chain

Ecolab Diversey Serviceable Expansion Total 2017 2017 Addressable Markets Addressable Targeting Market Market Mid-Teens ROIC via Synergies Only Two Global Players Proven Track Record of Successful Integrations

Source: Management Estimates 30