Business consultation and advisory services in the fields of capital infrastructure, project planning, value engineering, costs details, risk management, and schedule analysis

Asbestos removal; Building demolition; Construction and construction management of tunnels and underground structures; Construction and renovation of buildings; Construction and repair of buildings; Construction dewatering, namely, the removal of surface waters and groundwater to facilitate the construction of structures and pipelines; Construction management; Construction of airports; Construction of slurry wall and concrete structures; Consulting services for the construction of water treatment and purification plants, solid waste treatment plants and other municipal infrastructure facilities; Custom construction and building renovation; Excavation services; Foundation contractor services; Hazardous waste disposal services; House and building demolition; Installation of vehicular and pedestrian bridges; Installation of slurry wall; Installation, maintenance and repair of bridges and tunnels; Maintenance and repair of bridges and tunnels; Marine construction; Paving contractor services; Pier construction; Repair and maintenance of buildings in case of demolition; Repair or maintenance of nuclear power plants; Repair or maintenance of water pollution control equipment; Residential and commercial building construction; Road construction; Road paving; Scaffolding, earthworks or concrete construction; Snow removal services; Soil erosion control services; Solid waste landfill services; Steel structure construction works; Street construction; Technical support services, namely, technical advice related to the installation of bridges and tunnels; Underwater dredging; Waste disposal for others; Oil, gas, and water pipeline construction, installation, laying, repair, rehabilitation, and maintenance services; construction, installation, repair, rehabilitation and maintenance services of compressor stations, pump stations, metering and regulator stations, processing plants, tank farms, fueling facilities, port and wharf loading and unloading facilities, rail facilities, and refineries; construction, installation, repair, rehabilitation and maintenance services of pads, tanks, pumps, gathering and processing lines, mud pits, fresh water frac ponds; construction of storm water control infrastructure and site reclamation services; construction, installation, repair, rehabilitation and maintenance services of solar arrays for carports, ground-mounted, or rooftops; construction, installation, repair, rehabilitation and maintenance services of wind turbines

Custom building of manholes, intakes, outfalls and perimeter security enhancement; Custom construction of manholes, intakes, outfalls and perimeter security enhancement; Decontamination of hazardous materials; Decontamination of nuclear waste; Demolition services, not buildings; Detoxification of hazardous materials; Environmental remediation services, namely, treatment of soil, waste and water; Hazardous waste management; Incineration of waste; Industrial toxic waste disposal; Nuclear waste treatment; Sorting of waste and recyclable material; Treatment of waste water; Waste incineration; Waste management; Waste treatment; Waste treatment services; Waste water reprocessing; Waste water treatment services; Water treatment services

Development and engineering services in the fields of solar energy, pipelines, ports, waste management, power plants, infrastructure, and civil construction

Consultation services concerning homeland safety and security issues; Consulting services in the field of homeland security; Consulting services in the field of maintaining the security and integrity of databases; Consulting services in the field of national security; Control of building environmental access and security systems; Providing consultation and information in the field of emergency response for communities; Providing information concerning homeland safety and security issues; Security consultancy; Security services, namely, providing security assessments for businesses and governmental agencies; Security services, namely, providing security assessments of physical locations, information systems, and working environments; Security services, namely, water vulnerability assessment services; Security threat analysis for protecting public safety