Publishers
- Samuel Harding 1
- Samuel Walker Ltd 3
- Sanders, Phillips & Co. Ltd. 1
- Sandle Brothers Ltd. 17
- Sandle's 1
- Sandpiper Books 1
- Sands & Co. 2
- Sands and Co. 1
- Sangam Books 1
- Sansom & Company 1
- Santona Publications 2
- Sapling 1
- Saunders and Otley 1
- Saunders College Publishing 1
- SAVE Britain's Heritage 1
- Saxon & Lindstroms Forlag 1
- Scala Books 1
- Scala Publishers 3
- Scalo 1
- Scalo Zurich 1
- Scandinavian National Committees Of The Internation Biology Programme 1
- Scandinavian Science Publisher 1
- Scarborough Archaeological And Historical Society 2
- Scarborough Borough Council 1
- Sceptre 1
- Scheidegger & Spiess 2
- Schiffer Aviation History 1
- Schiffer Military History 20
- Schiffer Publishing Ltd. 15
- Schofield & Sims Ltd. 2
- Scholastic 1
- Scholastic Children'S Books 2
- Scholastic Press 7
- Scholastic Publications 1
- Scholz Mainz 1
- Schonbergske 1
- School Of Oriental And African Studies (university Of London) 1
- Schulbuchandlung 1
- Schweizer Alpenclub 1
- Science History Publications Ltd. 1
- Science Publications Inc. 1
- Scolar Press 2
- Scorpion Press 1
- Scorpion Publications Limited 1
- Scott & Sleeman 2
- Scott, Greenwood & Son 1
- Scottish National Portrait Gallery 1
- Scoval Publishing Ltd 3
- Scribner 1
- Scribner Armstrong And Company 1
- Scribners 1
- Scriptum Editions 1
- Seaforth Publishing 15
- SeaStar Books 1
- Seckel & Kreutz Publishers 1
- Secker & Warburg 2
- Secretariat Mathematique Paris 8
- Seeley & Co. 1
- Seeley and Co. Limited 3
- Seeley, Jackson and Halliday 3
- Seeley, Jackson, Halliday 1
- Seeley, Service & Co. 3
- Seeley, Service & Co. Ltd. 6
- 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