EQ Office

EQ Office
FormerlyEquity Office
Company typeDefunct
Founded1976 (1976) (as Equity Office Properties)
FounderSam Zell
DefunctMay 2025 (2025-05)
FateMerged into Perform Properties
HeadquartersChicago, Illinois
Websitewww.performproperties.com

EQ Office (formerly Equity Office) was a real estate investment company that invested in office buildings. The company was owned by funds managed by The Blackstone Group. In 2025, it was merged into Perform Properties.

Notable properties that were owned by the company included 100 Summer Street, 1740 Broadway, 350 North Orleans, Docusign Tower, San Francisco Ferry Building, U.S. Bank Center (Seattle), Wells Fargo Center (Minneapolis), and Willis Tower.