SAN FRANCISCO – September 21, 2007 – ABM Industries Incorporated (NYSE:ABM), a leading facility services contractor, today announced the company will be presenting at the Sidoti & Company Sixth Annual West Coast Emerging Growth Institutional Investor Forum at The Ritz-Carlton Hotel in San Francisco, California. ABM’s George B. Sundby, executive vice present and chief financial officer, and David L. Farwell, senior vice president and chief of staff, will give the presentation on September 24th at 2:00 p.m. PDT.

The presentation will encompass an ABM overview as well as the company's recent performance and industry trends. The complete presentation is available at www.ABM.com.

About ABM Industries

ABM Industries Incorporated (NYSE:ABM) is among the largest facility services contractors listed on the New York Stock Exchange. With fiscal 2006 revenues in excess of $2.7 billion and more than 75,000 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 Services; Ampco System Parking; ABM Security Services; ABM Facility Services; ABM Engineering; and Amtech Lighting Services.