PS Business Parks, Inc., a member of the S&P MidCap 400, is a REIT that acquires, develops, owns, and operates commercial properties, primarily multi-tenant industrial, flex, and office space. As of September 30, 2020, the Company wholly owned 27.5 million rentable square feet with approximately 5,000 commercial customers in six states. The Company also held a 95.0% interest in a 395-unit apartment complex and a 98.2% interest in a development of a 411-unit multifamily apartment complex. As of July 20, 2022, PS Business Parks, Inc. operates as a subsidiary of Blackstone Real Estate Advisors.