Publishers
- Brimax Books 2
- Bristol and Gloucestershire Archaeological Society 5
- Bristol Branch Of The Historical Association 1
- Bristol City Council 1
- Bristol Printers Ltd. 1
- British Association for the Advancement of Science 2
- British Aviation Research Group 2
- British Books Ltd. 1
- British Broadcasting Corporation 1
- British Bryological Society 2
- British Bus Publishing 2
- British Electrical Development Association 1
- British Leyland 2
- British Museum 4
- British Museum (Natural History) 2
- British Museum Press 2
- British Museum Publications 3
- British Ornithologists' union 23
- British Pteridological Society 1
- British Railways 3
- British Small Animal Veterinary Association 1
- British Timken Limited 1
- British Transport Commission 1
- British Trust for Ornithology 19
- British Wildlife Publishing 1
- Broads 1
- Brockhampton Press 72
- Brockhampton Press Ltd. 30
- Brooke Bond Oxo 1
- Brooklands Books 18
- Brooks Cole 2
- Browcom Group Plc. 1
- Brown & Bibby 1
- Brown & Co. 1
- Brown Watson 4
- Brown Watson Ltd 1
- Brown Wells & Jacobs Ltd. 1
- Brown, Son & Ferguson Ltd. 4
- Browndeer Press 1
- Browne and Nolan Ltd. 1
- Brownsword Books 1
- Bruce & Gawthorn Limited 1
- Bruce Main-Smith & Co. Ltd. 2
- Brumby & Clarke, Limited 1
- Bruno Cassirer 1
- Brunot-Labbe 1
- Buchebroc Press 1
- Buckingham Press 1
- Budding Books 2
- Budget Print & Design 1
- Bufe-Fachbuch 1
- Bullfinch Publications 2
- Bundesamt Fur Naturschutz 1
- Bunny And Gold 1
- Burke 5
- Burke Books 1
- Burke Publishing Company Ltd. 6
- Burleigh Dodds Science Publishing Limited 1
- Burlington Publishing Company Limited 1
- Burnett Books 1
- Burns & Oates 4
- Bursell 1
- Bus Enthusiast Publishing Company 2
- Buschlen Mowatt 1
- Butterworth & Co. (publishers) Ltd 1
- Butterworth Architecture 1
- Butterworth-Heinemann Ltd. 1
- Butterworths 6
- Butterworths Scientific Publications 1