Tesinc, a subsidiary of Dycom Industries, provides a range of engineering and technical services for the telecommunications and power industries. It serves electrical utilities, information systems companies, universities and government agencies. The company also offers turnkey project management and execution, design and installation services throughout the United States. Tesinc s clients include Adelphia, Alltel, AT&T, Arizona Public Service and Cincinnati Bell. It provides technical documentation, field inventory and verification, as well as utility pole inspection services. Founded in 1969, Dycom Industries is one the largest companies in North America that offers a variety of specialty contracting services. It has a staff of more than 10,000 individuals.