Publishers – K
- Kagemusha Taiko
- Kahn & Averill
- Kahnt
- Kahurangi
- Kalmus (Alfred)
- Kameleon-Editions
- Kamera Books
- Kane Press
- Kaplan Publishing
- Kapon Editions
- Kar-Ben
- Karma
- Karnac Books
- Karnak House
- Karolinum
- Katherine Tegen Books
- Kegan Paul
- Kehrer Verlag
- Kendall/Hunt Publishing Co
- Kendor Music Inc.
- Kendrick Books
- Kensington Publishing
- Kent State University Press
- Kerber Verlag
- Kevin Mayhew
- KG Saur Verlag
- Kids Can Press
- Kingmaker Publishing
- Kingston Imperial
- Kingsway Publications
- Kjos Music Company
- Kluwer Academic Publishers Group
- KMEC Books
- Knopf Publishing Group
- Koala Publications
- Koc University Press
- Kodansha
- Krause Publications
- Kregel Publications
- Krimskrams Island
- Kunstfactor
- Kunzelmann
- Kwela Books
- Kyle Books
- Kyle Craig Publishing