Name
- Foreign Office, 1782-1968263
- HM Ambassador to Iran, 1807-1980104
- Political Resident, Persian Gulf, 1822-197184
- British Legation, Tehran, c 1836-194478
- Secretary of State for Foreign Affairs, 1782-196870
- Government of Iran, Pahlavi dynasty, 1925-197965
- Government of India, 1834-194749
- Government of India, Foreign and Political Department, 1783-193749
- Government of Persia, Qājār dynasty, 1794-192549
- Viceroy and Governor-General of India in Council, 1773-194740
- Colonial Office, 1854-196638
- Admiralty, 1708-196428
- HM Ambassador to the Ottoman Empire, 1583-191424
- High Commissioner, Egypt, 1914-193620
- Political Resident, Aden, 1854-193220
- Anglo-Iranian Oil Company Limited, 1909-195419
- British Bank of Iran and the Middle East, 1889-195219
- High Commissioner, Iraq, 1920-193219
- Persian Gulf Political Residency, 1822-197119
- HM Ambassador to Russia, 1801-192218