Name
- Admiralty, 1708-19641
- Admiralty, Naval Intelligence Department, 1887-19121
- Adviser to the Government of Bahrain, 1926-19571
- Air Ministry, 1918-19642
- Aitchison, Charles Umpherston, Knight, administrator in India, 1832-18961
- Ambassador of France to the United Kingdom, Early 18th century-2
- Ambassador of the Russian Empire to the United Kingdom, 1706-19172
- American Mission Hospital, Bahrain, 1903-1
- Anglican Bishop in Jerusalem, 1841-1
- Anglo-Iranian Oil Company Limited, 1909-19542
- Arabian American Oil Company, 1933-19881
- Armour, George Denholm, 1864-19491
- Armstrong, John Arthur, b 18402
- Assistant Political Agent, Bahrain, c 1926-c 19501
- Assistant to the Political Resident in the Persian Gulf, 1828-19711
- Baghdad Railway, 1903-10
- Baillie, Charles Wallace Alexander Napier Ross, 2nd Baron Lamington, politician and colonial administrator, 1860-19402
- Baratov, Nikolai Nikolaevich, army officer, 1865-19321
- Baring Brothers and Company Limited, 1891-19951
- Bicharakov, Lazar, army officer, fl 1914-19181