CORPORATE DATA

Corporate Headquarters Executive Officers Regional Vice Presidents 701 Western Avenue MARIA R. HAWTHORNE MARK D. ANTROBIUS Glendale, 91201-2349 President and Chief Executive Officer Regional Vice President, Southern (818) 244-8080 Telephone California JOHN W. PETERSEN (818) 242-0566 Facsimile Executive Vice President and Chief RALPH D. ASHWORTH Vice President, Property Operations Website Operating Officer Controller psbusinessparks.com EDWARD A. STOKX Executive Vice President, Chief Financial THOMAS M. DRISCOLL Board of Directors Officer and Secretary Regional Vice President, Northern and RONALD L. HAVNER, JR. (1998) Divisional Vice Presidents DENNIS FAY Chairman of the Board CHRISTOPHER M. AUTH Regional Vice President, Northern Chairman of the Board and Chief Virginia and Maryland Executive Officer Divisional Vice President, Northern Virginia and Maryland RICHARD GUERTIN Regional Vice President, Miami, MARIA R. HAWTHORNE (2016) TRENTON A. GROVES President and Chief Executive Officer Vice President, Corporate Controller AMY L. HERITAGE JENNIFER HOLDEN DUNBAR (2009) COBY A. HOLLEY Regional Vice President, Austin, Co-Founder and Managing Director Vice President, Real Estate Dunbar Partners, LLC STUART H. HUTCHISON JEFFREY C. PASCHAL JAMES H. KROPP (1998) Divisional Vice President, Southern Regional Vice President, Texas and Chief Investment Officer California and Pacific Northwest Florida SLKW Investments LLC ROBIN E. MATHER SARA GROOTWASSINK LEWIS (2010) Vice President, Business Development EDDIE F. RUIZ Chief Executive Officer Vice President, Director of Facilities RICHARD E. SCOTT Lewis Corporate Advisors, LLC Divisional Vice President, Northern JAMI S. SHAW GARY E. PRUITT (2012) California Regional Vice President, Northern Retired Chairman and Chief Executive Officer California Univar N.V. EUGENE UHLMAN Vice President, Construction ROBERT S. ROLLO (2013) Management Retired Senior Partner Heidrick and Struggles DAVID A. VICARS Divisional Vice President, Texas JOSEPH D. RUSSELL, JR. (2003) and Florida President Public Storage PETER SCHULTZ (2012) Retired President, Chief Executive Officer and Director The Beacon Group, Inc.

( ) = Year director was elected to the Board

Transfer Agent Stock Listing Certifications Additional Information Sources

American Stock Transfer PS Business Parks, Inc. is The most recent The Company’s website, & Trust Company, LLC traded on the New York certifications by our Chief psbusinessparks.com, contains 6201 15th Avenue Stock Exchange under the Executive Officer and Chief financial information of interest to Brooklyn, NY 11219 symbol “PSB.” Financial Officer pursuant shareholders, brokers and others. (800) 937-5449 to Sections 302 and 906 of the Sarbanes-Oxley Act of 2002 are filed as exhibits to our Form 10-K. Our Chief Independent Registered Executive Officer’s most Public Accounting Firm recent annual certification to PS Business Parks, Inc. is a the New York Stock member and active supporter of the Ernst & Young LLP Exchange was submitted on National Association of Real Estate Los Angeles, CA May 17, 2016. Investment Trusts.