Name
- Foreign Office, 1782-19683
- British Agent and Consul General, Jeddah, 1919-19302
- Colonial Office, 1854-19662
- HM Ambassador to Iran, 1807-19802
- King of Hejaz, 1916-19252
- Sultan of Najd, 1921-19262
- Air Ministry, 1918-19641
- Bahrain Petroleum Company, 1929-1
- Chief Commissioner, Aden, 1932-19371
- Committee of Imperial Defence, Standing Official Sub-Committee for Questions Concerning the Middle East, 1930-19391
- Government of Bahrain, Āl Khalīfa dynasty, 1783-1
- Government of Germany, Third Reich, 1933-19451
- Government of India, Department of Supply, 20th century1
- Government of India, Foreign Secretary, 1843-19371
- Government of Iran, Pahlavi dynasty, 1925-19791
- Government of Persia, Qājār dynasty, 1794-19251
- Government of the Union of Soviet Socialist Republics, 1923-19911
- High Commissioner, Egypt, 1914-19361
- High Commissioner, Iraq, 1920-19321
- High Commissioner, Palestine and Transjordan, 1920-19481