ABM

Founded in 2003, GCA Services Group provides a range of janitorial and upholstery cleaning services. It serves the aviation, commercial, automotive, manufacturing, high-technology, pharmaceutical, nuclear power and utilities industries. The company employs more than 20,000 staff members and operates offices throughout the United States. GCA Services Group offers contamination control services for various production environments, including biotechnology, fiber optics, and semiconductor and microelectronics. Its facility maintenance services include violation correction, water cleanup, pest control, painting, relamping, carpentry, ballast and carpet replacement, light and ceiling repair, and heating, ventilation and air conditioning equipment maintenance. The company additionally provides custodial, staffing, and a variety of support services, including recycling, window washing, snow removal and security shredding. GCA Services Group operates The ABS Companies, Sunstates Maintenance Corporation and Sunstates Facilities Services.