Primoris Services Corporation is a holding company. Through its subsidiaries, the Company operates as a specialty construction and infrastructure company. It provides construction, fabrication, maintenance, replacement, water and wastewater, and engineering services to public utilities, petrochemical companies, energy companies, municipalities, state departments of transportation and other customers. It operates in three segments: the West Construction Services segment (West segment), the East Construction Services segment (East segment) and the Energy segment. It installs, replaces, repairs and rehabilitates natural gas, refined product, water and wastewater pipeline systems; large diameter gas and liquid pipeline facilities; and heavy civil projects, earthwork and site development. It constructs mechanical facilities and other structures, including power plants, petrochemical facilities, refineries, water and wastewater treatment facilities and parking structures.