Many businesses hope to clean up, but diversified facilities services contractor ABM counts on it. The company primarily offers janitorial services to owners and operators of office buildings, hospitals, manufacturing plants, schools, shopping centers, and transportation facilities throughout the US, UK, Canada, Puerto Rico, the UAE, and Saudi Arabia. Through other units, ABM maintains mechanical, electrical, and plumbing systems. Its Ampco System Parking operates more than 1,800 parking lots and garages, mainly at airports across 35 states, while ABM Security Services provides security officers and security systems monitoring services.