Chicago, IL (August 10, 2011)  
Studley’s Senior Managing Director Tiffany Winne, Executive Managing Director Lisa Davidson and Executive Vice President Joe Learner represented Integrys Energy Group, Inc. [NYSE:TEG] in its 150,000-square-foot corporate headquarters’ lease at Aon Center, 200 E. Randolph Street in Chicago.

Integrys will relocate from its current headquarters at One Prudential Plaza, 130 E. Randolph Street, where it currently occupies 196,000 square feet, when the lease commences second quarter 2014. The move will reduce Integrys' space by 25 percent and significantly reduce costs.

At 1,136 feet, Aon Center is the 5th tallest building in the United States. Amenities are abundant and include a 25,000-square-foot cafeteria, a 243-seat auditorium, 12 meeting rooms and an 800-car garage. It is linked, via the lower lobby, to the Fairmont Hotel and Lakeshore Athletic Club.

Jones Lang LaSalle represented Piedmont Office Realty Trust, owners of Aon Center, in the transaction.

About Studley
Studley is the leading commercial real estate services firm specializing in tenant representation. Founded in 1954, Studley pioneered the conflict-free business model of representing only tenants in their commercial real estate transactions. Today, with 19 offices nationwide and an international presence through its London office and AOS Studley, a partnership with Paris-based AOS, Studley provides strategic real estate solutions to top-tier corporations, not-for-profit organizations and law firms. Information about Studley is available at

About Integrys Energy Group, Inc.
Integrys Energy Group [NYSE: TEG] is a diversified holding company with regulated utility operations operating through six wholly owned subsidiaries, The Peoples Gas Light and Coke Company, Wisconsin Public Service Corporation, , Michigan Gas Utilities Corporation, Minnesota Energy Resources Corporation, North Shore Gas Company, and Upper Peninsula Power Company; nonregulated operations through its wholly owned nonregulated subsidiary, Integrys Energy Services Inc.; and a 34% equity ownership interest in American Transmission Company LLC (an electric transmission company operating in Wisconsin, Michigan, Minnesota, and Illinois). More information about Integrys Energy Group, Inc. is available online at