Publishers
- Seeri Sari 1
- Self Publishing Association Ltd. 2
- Selwyn & Blount 1
- Sep Editrice 4
- Seren 1
- Serendipity 1
- Serif Books 1
- Serjeants Press 1
- Servet 1
- Severn House 2
- Severn House Paperbacks Limited 2
- Sgm Publishing 2
- Shakespeare Head Press 6
- Shaun Tyas 3
- Shaw's Children'S Books 1
- Sheffield City Museums 1
- Shepperton Swan 1
- Sherbourne Publications 1
- Sherratt & Hughes 3
- Sherwood & Co. 3
- Shiela Peczenik 1
- Ships In Focus Publications 1
- Shire Publications 2
- Shiva Publishing Limited 1
- Shropshire Trust For Nature Conservation 1
- Sias 1
- Sidgwick & Jackson 5
- Sifton Praed & Co. Ltd. 1
- Silas Birch Limited 1
- Silvana Editoriale 1
- Silver Link Publishing 18
- Silver Run Publishing 1
- Silverdale Books 4
- Silverdart Ltd. 1
- Silvio Mattacchione & Co 1
- Simmons-Boardman Publishing Corporation 8
- Simon & Schuster 16
- Simon & Schuster Ltd. 1
- Simon & Schuster Uk Ltd 3
- Simon & Schuster, Inc. 1
- Simpkin Marshall Ltd. 1
- Simpkin, Marshall 4
- Simpkin, Marshall & Co. 12
- Simpkin, Marshall And Company Limited 1
- Simpkin, Marshall, Hamilton, Kent & Co. Ltd. 6
- Sinclair-Stevenson Ltd. 1
- Singapore Art Museum 1
- Sir Isaac Pitman 1
- Sir Isaac Pitman & Sons Ltd. 14
- Sir Richard Nicholson 1
- Sir William Russell Flint Galleries Ltd. 1
- Skeffington & Son 1
- Skeffington & Son, Ltd. 1
- Skira 2
- Skira Rizzoli Publications, Inc. 1
- Skol Vreizh 1
- Skrudda Ehf. 2
- Sky Books Press 1
- Skyhook Press 1
- Slavica 1
- Slazengers Ltd. 1
- Smith Settle Ltd. 1
- Smith, Elder & Co. 15
- Smithmark 2
- Smithmark Publishers, Inc. 1
- Smiths Industrial Instruments Ltd. 1
- Smithsonian Books 1
- Smithsonian Institution 2
- Smithsonian Institution Press 5
- Snowdonia National Park Authority 1
- Societe Academique 1
- Societe Typographique Belge 1
- Society For Companion Animal Studies 1
- Society For Industrial And Applied Mathematics 1
- Society for Promoting Christian Knowledge 46
- Society For The Bibliography Of Natural History 2
- Society For The History Of Natural History 1
- Society For The Promotion Of Roman Studies 2
- Society Of Antiquaries Of Newcastle Upon Tyne 1
- Society Of Motor Manufacturers & Traders Ltd. 2
- Solo 1
- Somers 1
- Somersetshire Archaeological Natural History Society 1
- Somerville House Publishing 3
- Sonnick Publications 1
- Sono Nis Press 1
- Sort Of Books 1
- Sotheby Parke Bernet 1
- Sotheby Publications 1
- Sotheby's 1
- Sotherby 1
- South Africa Bird Book Fund 1
- South Bank Centre 2
- South Dakota School Of Mines 1
- South Metropolitan Gas Company 2
- South Platte Press 1
- South Wales Record Society 3
- Southampton University Industrial Archaeology Group 1
- Southend Museums Service 1
- Southern Book Publishers 1