Publishers
- 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
- Student Christian Movement Press 1
- Studio Editions 8
- Studio Vista 3
- Sudwest 1
- Suffolk County Council 1
- Suffolk Naturalists' society 1
- Sully & Kleinteich 1
- Sunbird Publishers 1
- Sunburst Books 1
- Sunshine Publishing Company 1
- Superprofile Ltd. 2
- Surrey Wildlife Trust 2
- Survey Of Cardiff 2
- Sutton Publishing 25
- Svensk Byggtjanst 1
- Swan Hill Press 9
- Swan Sonnenschein & Co. 1
- Swan Sonnenschein & Co. Ltd. 2
- Swan Sonnenschein, Lowrey & Co. 1
- Swansea Cricket & Footbal Club 1
- Swansea Philatelic Society 1
- Swedish Aviation Historical Society 1
- Swedish Natural Science Research Council 2
- Sydenham & Co. 1
- Sydney Lee 1
- Sylvan Press 3
- Synapse Gb Ltd. 1
- Synomic 1
- Syrawood Publishing House 2