Name
- Foreign Office, 1782-196820
- Imperial Airways, 1924-193919
- Air Ministry, 1918-196418
- Political Resident, Persian Gulf, 1822-197118
- British Overseas Airways Corporation, 1939-197414
- Persian Gulf Political Residency, 1822-197113
- Sultan of Muscat and Oman, Āl Bū Sa‘īd Dynasty, 1861-197013
- Commonwealth Relations Office, 1947-196611
- Royal Air Force, 1918-11
- Ministry of Civil Aviation, 1945-19539
- Indian Political Service, External Affairs Department, 1937-19478
- Political Agent and Consul, Muscat, 1861-19715
- Political Agent, Bahrain, 1905-19715
- Adviser to the Government of Bahrain, 1926-19574
- Emir of Sharjah, al-Qāsimī dynasty, 1866-4
- Qatar Petroleum Company, 1935-1976?4
- Bahrain Political Agency, 1900-19713
- Emir of Dubai, Āl Maktūm dynasty, 1833-3
- HM Ambassador to Afghanistan, 1922-3
- HM Ambassador to Iran, 1807-19803