Accrediting Council, 750 1st St NE, Washington, DC 20002, US

State Services Organization ("SSO") manages 225,000 square feet of office space at the Hall of the States building, conveniently located just one block from Union Station Metro and two blocks from the Capitol in DC. The nonprofit offers a variety of professional services to over 95 organizations, as well as non-tenants, at competitive prices achieved through economies of scale. Services include: full-service Library; 14 conference rooms for your next event; a full-service print center equipped with staff to take your next marketing collateral project from design through print; an array of information technology services including internet access, IT helpdesk, Cisco phone services, etc.; mailroom to handle incoming and outgoing packages for tenants; on-staff DC notaries; and property management.

750 First Street Parking Garage

NASW Foundation

American Psychological Association

Center for Clean Air Quality