Publishers
- Bracken Books 9
- Bradbury & Evans 6
- Bradbury Press 3
- Bradbury, Agnew & Co. 1
- Bradbury, Agnew & Co. Ltd. 5
- Bradford Barton 3
- Bradley Publications Of Hull 1
- Bramley Books 5
- Brassey's 17
- Brassey's Defence Publishers 1
- Braun & Schneider 1
- Breachurst Limited 1
- Brecknock Museum 1
- Breedon Books Publishing Co. 6
- Brehmer & Minuth 1
- Brent Press Ltd 2
- Brentano's 2
- Brentano's Ltd 1
- Brevet Press 1
- Brewin Books 5
- Brian Bridgeman 1
- Brian Trodd 2
- Bridge Books 4
- Bridgeway Press 1
- Brimax Books 5
- Bristol and Gloucestershire Archaeological Society 3
- Bristol Branch Of The Historical Association 1
- Bristol City Council 1
- Bristol Docks Office 1
- Bristol Record Society 1
- British & Foreign Bible Society, The 1
- British Association for the Advancement of Science 1
- British Aviation Publications Ltd 1
- British Aviation Research Group 1
- British Books Ltd. 1
- British Broadcasting Corporation 4
- British Bryological Society 1
- British Bus Publishing 3
- British Gas Council 1
- British Geological Survey 1
- British Leyland 3
- British Museum 4
- British Museum (Natural History) 1
- British Museum Publications 2
- British Ornithologists' union 25
- British Rail (Western) 1
- British Railways 1
- British Standards Institution 1
- British Steel Corporation 2
- British Transport Commission 2
- British Transport Docks 1
- British Trust for Ornithology 24
- British Waterways Board 1
- Broads 1
- Brockhampton Press 110
- Brockhampton Press Ltd. 41
- Brooke Bond 1
- Brooke Bond Oxo 1
- Brooklands Books 13
- Brooks Cole 2
- Brookside Publishing 1
- Brown & Bibby 1
- Brown & Co. 1
- Brown and Brown 1
- Brown Watson 3
- Brown Watson Ltd 1
- Brown Wells & Jacobs Ltd. 3
- Brown, Prior, Anderson 1
- Brown, Son & Ferguson Ltd. 9
- Browne and Nolan Ltd. 1
- Brownsword Books 1
- Broxbourne Press (printers) Limited 1
- Bruce & Gawthorn Limited 1
- Bruce Coleman 1
- Bruce Main-Smith & Co. Ltd. 7
- Bruno Cassirer 2
- Brunot-Labbe 1
- Bryngold Books 1
- Bsp Professional Books 1
- Buchan & Enright 1
- Buchebroc Press 1
- Buckingham Press 1
- Budding Books 1
- Budget Print & Design 1
- Bulfinch Press 1
- Bullfinch Publications 2
- Bunny And Gold 1
- Burke 4
- Burke Books 1
- Burke Publishing 1
- Burke Publishing Company Ltd. 6
- Burlington Publishing Company Limited 1
- Burnett Books 1
- Burns & Oates 5
- Burns Oates And Washbourne Ltd. 2
- Burroughs Wellcome And Col. 1
- Bus Enthusiast Publishing Company 2
- Buschlen Mowatt 1
- Butterworth & Co. (publishers) Ltd 1
- Butterworth Architecture 1