Publishers – J
- J & L Books
- J P & A Dyson
- J Rosa G
- J. Maurer Edition Musicale
- J.B. Metzler
- J.Haven Ventures
- Jacana Media (Pty)
- Jacaranda Books
- Jacob McFadden
- Jacob Zelazny
- Jake Island
- Jaman Mas Books
- James Clarke & Co
- James Currey
- James M Doran
- Janice Designs
- Jason Aronson Inc. Publishers
- Jawbone Press
- Jaypee Brothers Medical Publishers
- Jazzem Music
- JazzyKitty Greetings
- Jc Publications
- Jeff Coffin
- Jenny Stanford Publishing
- Jeremy Mills Publishing
- Jeremy Siskind
- Jeske, Otger, u. Matthias Mader. I.P. Verlag
- Jessica Eissfeldt
- Jessica Kingsley Publishers
- Jewish Lights Publishing
- Jewish Publication Society
- Jke Productions
- JMD Media
- Joel Plaag
- Joel Rothman Publications
- Joey Yap
- Johannes Kansy
- John Benjamins Publishing Co
- John Cage Trust
- John Donald Publishers
- John F Blair Publisher
- John Hunt
- John Hunt Publishing
- John Lezana
- John Libbey & Co
- John Murray
- John Sant' Ambrogio
- John Wiley & Sons
- Johnny Jingles Entertainment Group
- Johns Hopkins University Press
- Joiningthedotstv
- Jolly Learning
- Jolly Music
- Jonathan Ball Publishers SA
- Jonathan Cape
- Jonathan E. Smith
- Jonathon Collis
- Jones and Bartlett Publishers
- Jordan Music Productions
- Jorge Pinto Books
- Jorvik Press
- Joseph Maynard, Jr
- Joshua Tree Publishing
- Jossey Bass Wiley
- JP Medical
- JRP Ringier
- JSS Publishing
- JT Publishing House
- Jupiter Kids
- Just-In-Time Music Group
- Justfiction Edition
- JV Publicacoes
- Jysk Arkaeologisk Selskab
