Building construction, repair and installation of building equipment and systems, office equipment and systems, and telecommunications equipment and systems, real estate development, construction management, project management, leasing of building and construction equipment, automobile repair and maintenance, facility operations and maintenance of building and facility systems, namely intra-facility transportation systems, inter-facility transportation systems, leasing systems, building and campus logistics systems, computer hardware, and building communications systems, for commercial business facilities, namely, office buildings, data centers, telecommunications equipment centers, industrial warehouses, and business campuses, specifically regarding operational physical plant systems and controls thereof