Political organisations
| Name | Type | Notes |
|---|---|---|
| Brewers' Society | Pressure group | |
| British Armenia Committee | Pressure group | |
| British Chambers of Commerce | Pressure group | |
| British Commonwealth Peace Federation | Peace Movement | |
| British Cotton Growing Association | Trade group | |
| British Council | Miscellaneous | |
| British Council for International Understanding | Pressure group | |
| British & Foreign Bible Society | Religious | |
| British League of Ex-Servicemen | Miscellaneous | |
| British Legion | Miscellaneous | |
| British Medical Association | Pressure group | |
| British Medical Association | Miscellaneous | |
| British Sailing Ship Oners Assoc | Pressure group | |
| British Steamship Owners Association | Trade group | |
| British Union of Family Organisations | Miscellaneous | |
| British Wool Marketing Board | Miscellaneous | |
| British Workers' League | Pressure group | |
| Buckinghamshire Chamber of Agriculture | Miscellaneous | |
| Budget League | Miscellaneous | |
| Cambridge Union | Miscellaneous |