ABM Industries Incorporated, formerly American Building Maintenance Industries, Inc., is a provider of end-to-end integrated facility solutions. The Company's segments are Janitorial, Facility Services, Parking, Building & Energy Solutions, and Other. Its Janitorial segment provides a range of essential cleaning services, which include carpet cleaning and dusting, floor cleaning and finishing, window washing, and other building cleaning services. Its Facility Services segment provides onsite mechanical engineering and technical services and solutions relating to a range of facilities and infrastructure systems. Its Parking segment provides parking and transportation services for clients at various locations. Its Building & Energy Solutions segment provides custom energy solutions, electrical, heating, ventilation and air conditioning (HVAC), lighting, and other general maintenance and repair services. Its Other segment provides facility solutions to aviation service companies.