The headquarters of the PSA were in Croydon, Greater London, occupying space in several 1960s office blocks including the Whitgift Centre, Lunar House and Apollo House.
Central Intelligence Agency | World Intellectual Property Organization | National Security Agency | European Space Agency | International Atomic Energy Agency | United States Environmental Protection Agency | Federal Emergency Management Agency | United States Agency for International Development | United States Department of Health and Human Services | United States Information Agency | General Services Administration | Office of Strategic Services | Environment Agency | International Energy Agency | Catholic Relief Services | Amazon Web Services | Inter-Services Intelligence | William Morris Agency | Returned and Services League of Australia | Simon Property Group | Theatrical property | Tata Consultancy Services | Swiss inventory of cultural property of national and regional significance | Financial Services Authority | Centers for Medicare and Medicaid Services | advertising agency | The No. 1 Ladies' Detective Agency | Xinhua News Agency | Taxi Services Commission | Supply of Goods and Services Act 1982 |