Name
- Foreign Office, 1782-19688
- British Legation, Tehran, c 1836-19443
- Cable and Wireless Ltd, 1929-19813
- Persian Gulf Political Residency, 1822-19713
- Anglo-Iranian Oil Company Limited, 1909-19542
- General Post Office, 1660-19692
- Ministry of Foreign Affairs, Iran, 1821-2
- Secretary of State for India and Burma, United Kingdom, 1935-19472
- Board of Trade, 1786-19701
- British Consulate, Seistan and Kain, 1903?-1935?1
- British Legation, Baghdad, 1920?-1932?1
- Colonial Office, 1854-19661
- Department of Overseas Trade, 1918-19531
- Director-in-Chief of the Indo-European Telegraph Department, 1862-19311
- Eastern Telegraph Company, 1872-19291
- Emir of Kuwait, 1718-1
- French Embassy, London, 1814-1
- Government of India, 1834-19471
- HM Ambassador to Iran, 1807-19801
- HM Ambassador to Russia, 1801-19221