Publishers
- 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 2
- Somers 1
- Somersetshire Archaeological Natural History Society 1
- Somerville House Publishing 3
- Sono Nis Press 1
- Sort Of Books 1
- Sotheby Publications 1
- Sotheby's 1
- Sotherby 1
- Sotherby Parke Bernet 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
- Souvenir Press 8
- Spa Books 1
- SPCK 1
- Speciality Press 6
- Spellmount 2
- Spellmount Ltd. 13
- Spellmount Publishers 1
- Spindlewood 2
- Spink & Son Ltd. 1
- Spire Books Ltd 1
- Spokesman Books 1
- Sporting Handbooks Ltd. 1
- Spottiswoode & Co. 1
- Spottiswoode, Ballantyne & Co. Ltd. 1
- Spring Books 6
- Springer 92
- Springer ScienceBusiness Media 1
- Springer-Verlag 30
- Spur Publications 3
- Squadron Signal Publications 7
- Square One Publications 3
- Square Peg 1
- St Martin's Press 1
- St Matthew's Press 1
- St. Anthony's Press 2
- St. Catherine Press 2
- St. Clements Press, Ltd. 1
- St. Edward's School Society 5
- St. James Press 1
- St. Leonards Press 1
- St. Lukes Press 1
- St. Martin's Press, New York 3
- St. Nicholas Books 1
- Stacey International 2
- Stackpole Books 9
- Stainer & Bell Ltd. 1
- Standaard Uitgeverij 1
- Standard Art Book Co. Ltd. 1
- Stanford Maritime 1
- Stanford University Press 7
- Stanley Books 1
- Stanley Paul 8
- Stanley Paul & Co 2
- Stanley Paul & Co. Ltd. 1
- Stanley Thornes (Publishers) Ltd. 1
- Stanton And Van Vliet Co. 2
- Staples Press 2
- Starr Line 1
- Starsons 1
- Steam Boat Association 1
- Steam Image 1
- Stecher Litho. Co. 3
- Steiger Verlag Innsbruck 1
- Steimatzky 1
- Stenlake Publishing 8
- Stephen Morrison 1
- Sterling Children's Books 1
- Steve Ball 1
- Steve Russell 2
- Stevenage Museum 1
- Stewart Tabori & Chang 1
- Stewart Williams 70
- Stilgrafica Srl 1
- Stobart & Son 1
- Stobart Davies 1
- Stoddart Publishing Co Ltd. 1
- Stow-on-the-Wold and District Civic Society 1