Name
- Bahrain Petroleum Company, Chief Local Representative, 1930-c 19712
- Colonial Office, 1854-19662
- Gray, Mackenzie and Company Limited, shipping agents, 1937-20102
- AHQ, Iraq, 1941-19551
- Associated Octel Company Limited, 1938-1
- British Bank of Iran and the Middle East, 1889-19521
- Council of British Manufacturers of Petroleum Equipment, Mid 20th century1
- Government of Pakistan, 1947-1
- Holloway White Allom, construction company, 1882-20111
- King of Bahrain, 1783-1
- Persian Gulf Political Residency, 1822-19711
- Qatar Petroleum Company, 1935-1976?1