Equity Office

Equity Office Properties Trust, formed in 1976 by Samuel Zell [1] and headquartered in Chicago, Illinois, was the largest owner of office buildings in the United States until the Blackstone Group acquired them in February 2007 for $23 billion plus the assumption of $16 billion in debt. The acquisition was one of the largest leveraged buyouts. The company, now a part of Blackstone Group, operates as Equity Office Management, LLC.