Publishers
- Smiths Industrial Instruments Ltd. 1
- Smithsonian Books 1
- Smithsonian Institution 2
- Smithsonian Institution Press 5
- Snape Maltings Foundation Ltd 1
- 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 58
- Society For The Bibliography Of Natural History 1
- Society For The Promotion Of Roman Studies 4
- Society Of Antiquaries Of Newcastle Upon Tyne 1
- Society Of Antiquaries Of Scotland 3
- Society Of Friends Of St Helena 1
- Society Of Friends Of The Fleet Air Arm Museum 1
- Society Of Motor Manufacturers & Traders Ltd. 2
- Solo 1
- Somers 1
- Somerset Books 1
- Somersetshire Archaeological Natural History Society 1
- Somerville House Publishing 3
- Sono Nis Press 1
- Sotheby Publications 1
- Sotheby's 1
- Sotherby 1
- South Africa Bird Book Fund 1
- South Dakota School Of Mines 1
- South Metropolitan Gas Company 2
- South Platte Press 1
- South Wales Record Society 1
- Southampton Printers 1
- Southampton University Industrial Archaeology Group 1
- Southend Museums Service 1
- Southern Book Publishers 2
- Southwater 1
- Souvenir Press 7
- Spantech & Lancer 1
- SPCK 2
- Speciality Press 6
- Spellmount 2
- Spellmount Ltd. 9
- Spindlewood 2
- Spink & Son Ltd. 1
- Spire Books Ltd 2
- Spokesman Books 1
- Spottiswoode & Co. 1
- Spottiswoode, Ballantyne & Co. Ltd. 1
- Spring Books 13
- Springer 87
- Springer International Publishing 1
- Springer Nature Switzerland Ag 4
- Springer ScienceBusiness Media 1
- Springer-Verlag 24
- Spur Publications 2
- Squadron Signal Publications 5
- Square One Publications 3
- St Martin's Press 1
- St Matthew's Press 1
- St. Anthony's Press 2
- St. Catherine Press 3
- St. Clements Press, Ltd. 1
- St. Edward's School Society 5
- St. James Press 1
- St. Lukes Press 1
- St. Martin's Press, New York 3
- St. Nicholas Books 1
- Stacey International 1
- Stackpole Books 9
- Stainer & Bell Ltd. 1
- Standard Art Book Co. Ltd. 1
- Stanford Maritime 1
- Stanford University Press 4
- Stanley Books 1
- Stanley Paul 9
- Stanley Paul & Co 1
- Stanley Paul & Co. Ltd. 5
- Stanton And Van Vliet Co. 1
- Staples Press 1
- Starsons 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 Williams 58
- Stoddart Publishing Co Ltd. 1
- Stow-on-the-Wold and District Civic Society 1
- Strand Publications 10
- Strathwood Ltd 3
- Stratus 2
- Strawberry Press 1
- Strome & Co. 1
- Struik 1