- R. H. Porter
- R. H. Russell
- Reimar Hobbing
- Renou et Maulde (printer)
- Richard Bentley
- Roberts Brothers
- Routledge, Warne, & Routledge
- Rütten & Loening
- S. & T. Gilbert
- S. Highley
- Saalfield Publishing Co.
- Sampson Low, Marston & Company, Limited
- Sampson Low, Marston, Searle, & Rivington
- Samuel E. Cassino
- Scribner and Welford
- Sidgwick & Jackson, Ltd.
- Simpkin and Marshall
- Small, Maynard & Company
- Smith, Elder & Co.
- Société d'éditions littéraires et artistiques
- Spencer Blackett
- Stephen Ayling
- T. Mc. Lean
- T.C. and E.C. Jack
- The Bazaar
- The Bobbs-Merrill Company
- The Century Co.
- The Culture Hand (?)
- The London Printing and Publishing Company, Limited
- The New Age Press
- The Penn Publishing Company
- The Studio, Ltd.
- The Unicorn Press
- Thomas Nelson and Sons
- Thompson & Thomas
- Ticknor and Company