InfraSource Services, Inc. operates as a specialty contractor in the United States. The company operates in two segments, Infrastructure Construction Services and Telecommunication Services. The Infrastructure Construction Services segment provides design, engineering, procurement, construction, testing, and maintenance services for utility infrastructure. This segment offers its services to electric power utilities, natural gas utilities, telecommunication customers, and government entities, as well as heavy industrial companies, including petrochemical, processing, and refining businesses. The Telecommunication Services segment provides design, procurement, construction, and maintenance services for telecommunications infrastructure. This segment serves communication service providers, industrial and financial services customers, school districts, and other entities with high bandwidth telecommunication needs. In addition, it provides ancillary field services comprising project management, permitting, materials management, work scheduling, and customer interface management; and leases point-to-point telecommunications infrastructure. The company, formerly known as Dearborn Holdings Corporation, was founded in 1999. InfraSource Services, Inc. is based in Media, Pennsylvania. As of August 30, 2007, InfraSource Services Inc. is a subsidiary of Quanta Services Inc.