ABM Industries Incorporated is a provider of integrated facility, infrastructure, and mobility solutions. Its segments include Business & Industry (B&I), Manufacturing & Distribution (M&D), Education, Aviation, and Technical Solutions. B&I segment includes janitorial, facilities engineering, and parking services for commercial real estate properties, sports and entertainment venues, and non-acute healthcare facilities. M&D segment provides facility services, engineering, janitorial, and other specialized services in manufacturing and distribution. Education segment delivers custodial, landscaping and grounds, facilities engineering, and parking services for public school districts, private schools, colleges, and universities. Aviation segment supports airlines and airports with services ranging from parking and janitorial to passenger assistance, catering logistics, air cabin maintenance and transportation. Technical Solutions segment includes mechanical and electrical services.