ABM Industries Incorporated is a facility services contractor that provides air conditioning, elevator, engineering, janitorial, lighting, parking and security services to thousands of commercial, industrial and institutional customers in hundreds of cities across North America. The Company's operations are grouped into eight divisions (comprised of one or more subsidiaries of the Company). The divisions include ABM Engineering Services; ABM Janitorial Services; ABM Service Network; American Commercial Security Services; Ampco System Parking; Amtech Elevator Services; Amtech Lighting Services; and CommAir Mechanical Services.