ABM Janitorial Services signs a multi-million dollar contract for building maintenance for seven facilities located in Chicago and the surrounding suburbs.

SAN FRANCISCO -- ABM Janitorial Services, a wholly-owned subsidiary of ABM Industries Incorporated (NYSE:ABM) has been awarded a multi-year, multi-million dollar contract with Prentiss Properties Trust (NYSE:PP) for building maintenance for seven Prentiss facilities located in Chicago and the surrounding suburbs.

ABM Industries provides air conditioning and janitorial services for commercial, industrial, institutional and retail facilities in hundreds of cities across North America, among other services.

"We are pleased to provide state-of-the-art janitorial service for one of the nation's largest property managers," said Jim McClure, president of ABM Janitorial Services. "This contract expands our existing relationship with Prentiss Properties, and capitalizes on our resources, experience and efficiencies."

According to Phil O'Donnell, regional vice president of operations for Prentiss Properties, "Our goal is to provide quality service at a cost-effective rate to our tenants. This contract with ABM Janitorial is a further enhancement of our tenant services."

Dallas-based Prentiss Properties Trust is a self-administered and self-managed real estate investment trust (``REIT''). Prentiss owns interests in 141 operating properties with approximately 16.8 million net rentable square feet and five development projects containing 676,000 net rentable square feet. For more information on Prentiss Properties Trust, visit the company's website at www.prentissproperties.com.

ABM Janitorial Services operates more than 200 branch offices nationwide, serving 38 states and 36 of the 40 largest major metropolitan areas across the country.

ABM Industries Incorporated is the largest facility services provider listed on the New York Stock Exchange, with annualized revenues in excess of $1.9 billion and more than 60,000 employees.