Foundation Source is one of the leading providers of support services for private nonprofit institutions in the United States. The company provides a range of back office, online and support services to more than 600 families and organizations. It offers administrative services that include compliance monitoring, tax filing and grant management. Foundation Source provides password-protected Web sites that deliver instant access to reports, documents and the institution histories. The company provides services through partnerships with private wealth management firms, trusts and estate attorneys. Headquartered in Fairfield, Conn., Foundation Source has regional offices in Atlanta, Boston, Chicago, Denver, Los Angeles, New York City, Philadelphia, Salt Lake City, San Francisco and Seattle.