Primoris Services Corporation is one of the holding companies of various subsidiaries that form one of the largest specialty contractors and engineering companies in the western United States. It serves the growing power and energy sectors. Primoris Services Corporation provides a range of construction, fabrication, maintenance and replacement services, as well as engineering services to public utilities, petrochemical and energy companies, municipalities and other customers. The company is also one of the leading water and wastewater contractors in the Southeast and a specialist in designing and constructing complex commercial and industrial concrete structures in California.