Publishers
- Chapel Hill 1
- Chapman & Hall 25
- Chapman & Hall Ltd 9
- Chapman & Hall/Crc 7
- Chapmans 1
- Chappell Music Ltd. 1
- Charles Baldwyn 1
- Charles Birchall 1
- Charles E. Tuttle Company 1
- Charles Farlow 1
- Charles Griffin & Co. Ltd. 2
- Charles H. Kelly 1
- Charles Knight 2
- Charles Knight & Co. Ltd. 1
- Charles Scribner's Sons 7
- Charles Skilton 3
- Charles Skilton Ltd. 10
- Charles Taylor 2
- Charles Thurnam & Sons 1
- Charles Tilt 1
- Charles Wilson (booksellers) Limited 1
- Charta 12
- Chartwell Books Inc. 1
- Chartwell-Bratt 1
- Chas. J. Clark 1
- Chatford House Press Ltd. 1
- Chatham Publishing 13
- Chatto & Windus 65
- Chatto & Windus Ltd 2
- Chelsea House Publishers 2
- Chelsea Publishing Co. 2
- Chepstow Town Council 2
- Chesapeake & Ohio Historical Society, Inc. 1
- Chester County Historical Society 1
- Chester McKaige 2
- Chesterfield Borough Council 1
- Chevprime 2
- Chicago 2
- Child's Play (International) Ltd. 10
- Childhood Publications Limited 1
- Children's Leisure Products Ltd. 1
- Children's Special Service Mission 1
- Children's Universe 1
- Chilton Book Company 1
- China Press 11
- Chiswick Press 2
- Chorion 1
- Choudens 1
- Chris & Cliff Tomaszewski 2
- Chris Beetles Ltd. 1
- Christian Brandstatter Verlag 1
- Christian Touring Union Limited 1
- Christie, Manson & Woods Ltd. 1
- Christoph Seigel 1
- Christopher Davies 6
- Christopher Hall 1
- Christopher Helm 9
- Christophers 2
- Chronica Botanica Company 1
- Chronicle Books 5
- Chronosports 5
- Chronosports Gsn Publishing 1
- Church Missionary Society 2
- Cicada Books 1
- Cinque Port Press Ltd. 1
- Circle Productions 1
- Citta Di Torino 1
- City Of Birmingham 1
- City of Bristol Museum and Art Gallery 1
- City Of Worcester 1
- Clan Enterprises 1
- Clarendon Press 9
- Clarion Books 1
- Clarkes New Press 1
- Clarkson Potter 1
- Classic 4
- Classic Car Publishing Ltd. 1
- Classic Publications 5
- Claude Lefrancq Editeur 2
- Clearview 1
- Clifton Books 1
- Climber's Club 1
- Clwydian-Press 1
- Clymer 3
- CMG Publishing 1
- Co-Operative Printing Sociaty Limited 1
- Co-operative Wholesale Society 2
- Coachbuilt Press 1
- Cobden-Sanderson 2
- Cobden-Sanderson Ltd. 1
- Cocorico 1
- Colin Baxter Photography Ltd. 1
- Colin Huston 1
- Colin Orchard 1
- Collection Parthenope 1
- Collectors' Books 1
- Collet's 1
- Collier Macmillan Publishers 2
- Collins 348
- Collins & Brown 1