Consulting in the field of maintenance and repair of telecommunications network hardware, apparatus, and instruments; Repair or maintenance of telecommunication machines and apparatus; Telecommunication wiring; Installation, maintenance and repair of telecommunications apparatus and instruments; Installation, maintenance and repair of telecommunications equipment; Construction of telecommunication towers; Maintenance of communications equipment; Installation, maintenance and repair of telephone and communication equipment; Installation of telephone lines; Construction of civil engineering structures; Consultancy and information services in the field of construction; Construction services, namely, manhole adjusting; Installation of communications network apparatus; Construction of underground structures; Pipeline construction and maintenance services; Construction services, namely, excavation; Construction services, namely, grading; Construction services, namely, site clearing; Construction services, namely, concrete paving, site clearing, excavation, pad preparation, grading, and asphalt paving services; Building construction services; Water main rehabilitation services; Installation of utilities in construction sites; Pipeline construction and maintenance; Construction services, namely, installation of environmental containment systems; Construction, maintenance and renovation of real property; Construction consultation; On-site construction supervision; Construction of civil engineering structures using concrete; Providing construction information; Construction of transmission lines; Laying and construction of pipelines; Installation, maintenance and repair of water supply apparatus; Installation of gas and water pipelines; Installation, maintenance and repair of electrical, water, sewage, gas, stormwater, drainage, telecommunications, and data systems, water mains, pump stations, and force mains, cables, pipes, wires, valves, meters, stations, and lines; Installation of utilities in the nature of electricity, water, sewage, gas, stormwater, drainage, telecommunications, data, water mains, pump stations, and force mains, cables, pipes, wires, valves, meters, stations, and lines in construction sites