Publishers
- Birkhauser 2
- Birkhauser Verlag 1
- Birlinn Limited 7
- Birmingham City Council 1
- Birn Brothers 2
- Birn Brothers Ltd. 20
- Bison Books 5
- Bison Group 1
- Black & Harris Publishers 1
- Black Belt Press 1
- Black Dwarf Publications 1
- Blacker Design 1
- Blackfriars Press 1
- Blackie 12
- Blackie & Son 10
- Blackie & Son Ltd. 352
- Blackie And Son Limited 25
- Blackie Children's Books 3
- Blackstaff Press 1
- Blackwell Publishers 2
- Blackwell Science 5
- Blackwell Scientific Publications 15
- Blackwood Morton & Sons Ltd 1
- Blades, East & Blades 1
- Bladon Publishing 1
- Blaisdon Publishing 1
- Blandford Press 12
- Blandford Press Ltd. 5
- Blink Publishing 1
- Bliss, Sands & Co. 1
- Blitz Editions 2
- Blond Educational 1
- Bloomsbury 34
- Bloomsbury Books 7
- Bloomsbury Children's Books 11
- Bloomsbury Publishing Plc 14
- Blorenge Books 2
- Bloud Et Gay 1
- Blue Book Publishing Company 1
- Blue Door 1
- Bluestone Press 2
- Blumenthals Ltd 1
- Bma Cymru Wales 1
- Bob Englehart 1
- Bodleian Library 1
- Boisterous Books Ltd 1
- Boivin & Cie, Editeurs 2
- Bomford & Evershed Ltd. 1
- Bond Publications 1
- Book Club 1
- Book Club Associates 17
- Book Guild Publishing 2
- Book Law Publications 26
- Bookano Strand Publications Ltd. 1
- Bookland Private Limited 2
- Booklaw Publications 2
- Booklaw Railbus 7
- Bookmarque Publishing 3
- Booky Publisher 1
- Boolarong Publications 1
- Booth Museum Of Natural History 2
- Booth-Clibborn 2
- Boots the Chemists 3
- Bosch 1
- Bossiney Books 2
- Botanical Society Of The British Isles 5
- Bothy Books 1
- Bound Biographies 1
- Bounty Books 5
- Bountyhunter Publications 2
- Boxtree Limited 1
- Bracken Books 7
- Bradbury 1
- Bradbury & Evans 1
- Bradbury Press 3
- Bradbury, Agnew & Co. 1
- Bradbury, Agnew & Co. Ltd. 4
- Bradbury, Evans And Co. 1
- Bradford Barton 2
- Bradley Publications Of Hull 1
- Brambleby Books 1
- Bramley Books 4
- Brassbounders (publishing) 1
- Brassey's 10
- Brassey's Defence Publishers 1
- Braun & Schneider 1
- Breedon Books Publishing Co. 5
- Breedon Books Publishing Company Limited 1
- Brehmer & Minuth 1
- Brent Press Ltd 2
- Brentano's 2
- Brentano's Ltd 1
- Brevet Press 1
- Brewin Books 3
- Brian A.F. Elks 1
- Brian Trodd 1
- Bridge Books 6
- Brill 6
- Brimax Books 2
- Bristol and Gloucestershire Archaeological Society 5