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United Electric Supply is an electrical distributor that stocks more than 23,000 different items from more than 250 major manufacturers. In addition, it also offers engineering and design capabilities, energy audits, cost reduction services and e-commerce. United Electric was founded in 1965 by its former owner, N.R. 'Nick' Gianoulis, as a general-line distributor of electrical supplies to local industrial, commercial and construction customers in Delaware. Within a few years, they began construction on a contemporary building designed for improved materials handling and customer service. Gianoulis and his staff moved into the new building in 1972. A new service center was built in 1988 with continued expansion and improved customer service.United Electric offers the full range of products and services with concentration in five major areas industrial automation, lighting, wire/cable/conduit, gear and control, electro-mechanical and systems contracting.

Tech Services International is a leading provider of comprehensive business and technology services, specializing in civil infrastructure engineering, construction management, IT, and GIS asset management. With locations in Wilmington, DE and Baltimore, MD, Tech Services International offers a wide range of expertise and solutions to meet the needs of clients in various industries.Generated from the website

With more than 15 offices throughout the United States, Tetra Tech NUS provides environmental consulting and engineering, remediation, construction and information technology services to government and commercial clients. It offers air quality, regulatory compliance, environmental analysis, planning, hazardous waste management, nuclear plant licensing and risk assessment solutions. The company also specializes in the water and wastewater treatment services. Tetra Tech NUS is a subsidiary of Tetra Tech, which is one of the world s leading companies that provides consulting, engineering and technical services. Founded in 1996, the parent company maintains a staff of over 10,000 employees. It offers solutions for waterways, harbors and coastal areas. Tetra Tech operates various subsidiaries, including Tetra Tech FC, Tetra Tech International and Tetra Tech International.