37 Electric appliance installation and repair; Installation of solar energy systems and alternative energy products for residential and commercial use; Installation, maintenance and repair of Ethernet and wireless networking hardware; Repair or maintenance of electric lighting apparatus; Installation, maintenance and repair of electrical systems, appliances; Electrical contracting; Electrical repairs, maintenance, and Installation of electrical wiring, outlets, light fixtures, and electrical panels; Installation and wiring for AC/DC power plants; Installation, replacement, repair and maintenance of battery and battery back-up systems; Installation of commercial security systems; Construction project management services; Construction of telecommunication towers, communication antennae, telephone lines, fiber optic transmission lines; Excavation services; Building construction and repair; Installation, replacement, repair and maintenance of HVAC systems; Installation, maintenance and repair of telecommunications network hardware, apparatus, and instruments; Real estate site selection services; Antenna installation and repair; Consulting in the field of maintenance and repair of telecommunications networking hardware, apparatus, and instruments; Construction services, namely, telecommunication utility construction services; Installation, maintenance and repair of fiber optic networks; Construction, installation, and maintenance services, namely, planning, laying out, constructing, and maintaining external telecommunication hardware networks for fiber optic industries