Name
- Foreign Office, 1782-196811
- Political Resident, Persian Gulf, 1822-19716
- HM Ambassador to Iran, 1807-19805
- HM Ambassador to the Ottoman Empire, 1583-19145
- Secretary of State for Foreign Affairs, 1782-19685
- Imperial Government of the Ottoman Empire, 1908-19184
- Anglo-Iranian Oil Company Limited, 1909-19543
- Anglo-Saxon Petroleum Company, 1898-19553
- Government of Persia, Qājār dynasty, 1794-19253
- Government of the Russian Empire, 1721-19173
- Admiralty, 1708-19642
- Baghdad Railway, 1903-2
- British Consul, Bandar Abbas, 19th century-19522
- Government of India, 1834-19472
- Government of the German Empire, 1871-19182
- Government of the Ottoman Empire, 13th century-20th century2
- HM Ambassador to Russia, 1801-19222
- India Office, Assistant Secretary to the Political and Secret Department,, 1858-19302
- Mesopotamia Expeditionary Force, Chief Political Officer, 1914-1920?2
- Political Agent, Turkish Arabia, 1812-18922