Operational for more than 100 years, ABM Janitorial Services provides a range of solutions for property management firms, facility managers and building owners in the commercial, institutional and industrial markets. It offers blind cleaning, food service sanitation, general maintenance, light industrial, pressure washing, supply management, inventory control, and document and medical waste disposal services. The company provides construction clean up, production line support, restroom sanitation, and computer room, upholstery, window cleaning services. It is a part of ABM Incorporated, which is one of the largest facility services contractors in the United States. The parent company offers parking, security, engineering and maintenance solutions.