Name
- Government of India, Foreign and Political Department, 1783-19372
- British India Steam Navigation Company Limited, 1862-19711
- Foreign Office, 1782-19681
- General Post Office, 1660-19691
- Government of India, 1834-19471
- Gray, MacKenzie and Company, shipping agents, 1869-19201
- HM Ambassador to Iran, 1807-19801
- HM Ambassador to the Ottoman Empire, 1583-19141
- Persian Gulf Political Residency, 1822-19711
- Political Agent and Consul, Muscat, 1861-19711
- Political Agent, Bahrain, 1905-19711
- Political Resident, Persian Gulf, 1822-19711
- Robert Wönckhaus and Company, 1890s-Early 20th century1