SAN FRANCISCO – June 17, 2005 – ABM Janitorial Services, an operating unit of ABM Industries Incorporated (NYSE:ABM), has been awarded a multi-year, multi-million dollar contract renewal with Lambert-St. Louis International Airport (STL). The contract covers janitorial service for all common areas throughout the airport concourses, which encompass approximately 290,000 square feet.

“We look forward to continuing to provide janitorial service to Lambert-St. Louis International Airport, one of the country’s busiest airports,” said Jim McClure, president of ABM Janitorial Services. “Our long-standing expertise in the aviation industry, combined with our efficient and consistent quality of service, will ensure a comfortable and satisfying experience for the more than 20 million passengers who travel through the airport each year,” he added.

“We are pleased with ABM's consistent responsiveness to the airport's cleaning needs and changing demands,” said Dan Faulk, airport facilities maintenance manager for Lambert-St. Louis International Airport. “We look forward to another three years of continued efficiency and excellent janitorial service,” he added.

Lambert-St. Louis International Airport is the 11th busiest airport in North America for aircraft operations and 15th in total passengers. The airport is situated on approximately 2,000 acres and is comprised of five runways. Lambert has 83 gates serving 10 major airlines, as well as five commuter airlines, eight on-site cargo companies and four major charter companies. Lambert employs more than 19,000 people through airlines, vendors and service companies, as well as the City of St. Louis, which owns and operates the airport.

ABM Janitorial Services operates 111 branch offices in 42 states, the District of Columbia and one Canadian province.

ABM Industries Incorporated is among the largest facility services contractors listed on the New York Stock Exchange. With fiscal 2004 revenues in excess of $2.4 billion and more than 73,000 employees, ABM provides janitorial, parking, security, engineering and lighting services for thousands of commercial, industrial, institutional and retail facilities in hundreds of cities across the United States and British Columbia, Canada. The ABM Family of Services includes ABM Janitorial; Ampco System Parking; ABM Security Services, which includes American Commercial Security Services (ACSS) and Security Services of America (SSA); ABM Facility Services; ABM Engineering; and Amtech Lighting Services.