equipment sales, installation, maintenance, and repair of environmental and industrial control systems for buildings, plants and factories; Equipment sales, installation, maintenance, and repair of systems for providing heating, ventilating, air conditioning, refrigeration, energy, lighting, and security access systems for industrial, commercial, and governmental facilities; Equipment sales, installation, maintenance, and repair of refrigeration systems, machine control, process control, security access systems for facility management controls; industrial control systems, lighting control systems, and building automation systems. Construction Management services, namely, supervision of construction and renovation of facilities; maintenance of critical environments in industrial, commercial, and governmental facilities; management consultation in the field of facilities management, namely, managing the maintenance and repair affairs of operations of facilities, facilities management services, namely, facilities management; services relating to maintenance, repair, environmental and industrial control, office subdivisions, facilities and equipment of buildings