Covenant Services Worldwide, also known as CSW, is one of the largest, privately owned security companies in the United States. The company offers administrative support services to its business units. It conducts several investigations, audits and surveys. Covenant Services Worldwide also provides aviation security and emergency preparedness and planning solutions. Its ancillary services include pre-employment screening, drug testing and program management. Its Covenant Aviation Security offers passenger and baggage screening solutions at San Francisco International Airport in California. The company manages Covenant Nuclear Security Services, which provides security solutions for the commercial nuclear power generation industry. Covenant Services Worldwide additionally operates Covenant Homeland Security Solutions, which offers crisis management and technical surveillance services.