Publishers
- Th. Shroter 1
- Thames and Hudson 26
- Thames Publishing Co. 1
- The Ace Publishing Company 7
- The Actinic Press 1
- The Adventurers Club 1
- The Advertiser Press Ltd. 1
- The Afan Valley Angling Club 1
- The Agricultural Research Corporation 1
- The Air League Of The British Empire 6
- The Albion Press 1
- The Alderman Press 1
- The Alexandra Publishing Co. 3
- The Allan Willett Foundation 1
- The Alpine Club 1
- The Alvis Register 1
- The Amaising Publishing House Ltd. 1
- The Amalgamated Press 45
- The Amalgamated Press Limited 5
- The American Federation of Arts 1
- The American Ornithologists Union 2
- The American Phytopathological Society 1
- The Ammonite Press 1
- The Architectural Press 4
- The Ariel Press 1
- The Armco International Corporation 1
- The Art & Humour Publishing Co. 1
- The Art Institue Of Chicago 2
- The Art Lithographic Publishing Co. 1
- The Artistic Lithographic Company 1
- The Ashmolean Museum 1
- The Association Of American Rhodes Scholars 1
- The Association Of Consulting Engineers 1
- The Association Of Mouth & Foot Painting Artists 1
- The Association Of Photographers 1
- The Athlone Press 2
- The Austin Motor Company 1
- The Australian Conservation Foundation 1
- The Aviation Book Club 1
- The Aviation Hobby Shop 1
- The Bahamas Locomotive Society 2
- The Bairstow Gallery 1
- The Batchworth Press 1
- The Bath Royal Literary And Scientific Institution 1
- The Bedford Press 1
- The Bemrose Press Limited 1
- The Bentham-Moxon Trust 1
- The Bermuda Historical Society 1
- The Biological Laboratory 1
- The Birkdale And Ainsdale Historical Research Society 1
- The Blakiston Company 1
- The Bloomsbury Publishing Co. Ltd. 3
- The Board Of Management Of The Australian War Memorial 1
- The Bobbs-Merrill Company 1
- The Bobbs-Merrill Company Inc. 1
- The Bodley Head 78
- The Bodley Head Children'S Books 5
- The Bodley Head Ltd 1
- The Bolus Herbarium 1
- The Bombay Natural History Society 2
- The Book Guild Ltd. 2
- The Book People Ltd. 1
- The Book Society 1
- The Book Stack 1
- The Book Studio 1
- The Booth Steampship Co. Ltd. 1
- The Bournemouth Natural Science Society 1
- The Boy Scouts Association 17
- The Boy's Own Paper 15
- The Boydell Press 9
- The Brecknock Society 1
- The Bristol Ornithological Club 1
- The Bristol Waterworks Company 1
- The British Archaeological Association 2
- The British Iron & Steel Research Association 1
- The British Library 2
- The British Publishing Company 2
- The British Record Society 2
- The British Records Association 1
- The Brockhampton Book Co. Ltd. 4
- The Brockhampton Press Ltd. 22
- The Bruce Publishing Co. Ltd. 1
- The C.W. Daniel Company Ltd. 1
- The Cable Printing & Publishing Co. Ld. 1
- The Calcutta Central Press Co., Ld. 1
- The Canal Press And Shepperton Swan 1
- The Cardiff Naturalists Society 1
- The Caroline Movement 1
- The Carp Society 2
- The Cats' protection League 1
- The Caxton Printers Ltd. 3
- The Caxton Publishing Company 1
- The Cayme Press 1
- The Center For Romanian Studies 1
- The Centre For The Study Of Religion Cheltenham & Gloucester College Of Higher Education 1
- The Century Co. 2
- The Chalford Publishing Company 3
- The Chelsea Publishing Company 1
- The Cheltonian Society 2
- The Chepstow Society 42