GMAC will house its administrative center serving the North Central Region in the space. The automotive credit bureau provides insurance, mortgages and commercial financing, employing 29,000 people in 40 countries.

Koll is a commercial real estate developer that provides commercial real estate services including speculative and build-to-suit development, construction management, financing, asset and land management, and marketing and leasing. The company's portfolio comprises more than 85 million sf of office facilities, industrial parks, and retail and entertainment centers throughout the US. Currently, the firm's development activity includes approximately 49 commercial projects totaling more than 9 million sf and $1 billion in construction costs.

Signature was founded in 1989, and now has transactions totaling over 18.4 million sf in 2000 and 4.6 million sf under management services, including industrial, office, and retail brokerage, investment sales, property/asset management and mortgage banking.