SAN FRANCISCO – July 28, 2005 – ABM Industries Incorporated (NYSE:ABM) announced today that labor charges filed against its janitorial division by the Service Employees International Union ("SEIU") have been resolved. As a result of this, SEIU has withdrawn picket lines established in Houston and Indianapolis.

ABM and SEIU have not resolved their dispute over SEIU's organizing activities in Houston, nor have they resolved other issues of strategic importance.  Attorneys for both parties will continue to seek an acceptable resolution.

About ABM Industries:

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, which includes American Commercial Security (ACSS) and Security Services of America (SSA); ABM Facility Services; ABM Engineering; and Amtech Lighting Services.

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