Publishers – H
Publishers: H Cube - Hedgehog Productions
- H Cube
- H. R. Remminga
- Hachette
- Hachette Audio
- Hackett Publishing Co, Inc
- Hakodesh Press
- Hal Leonard
- Haldane Mason
- Haley's
- Half Mystic Journal
- Half Pint Press
- Halo Publishing International
- Hamilcar Publications
- Hamilton Books
- Hamish Hamilton
- Hammeron Press
- Hammonasset House Books
- Hammond House Publishing
- Hammond Textbooks
- Hampton Press
- Hancock House Publishers
- Handelsware
- Handheld Press
- Hands Four Productions
- Handspring Publishing
- Hansebooks
- Hansib Publications Limited
- Happy Publishing
- Harbour Books (East)
- Hard Knocks Publishing
- Hardie Grant Books
- Hardie Press
- Hardinge Simpole
- Harmonia
- Harmonia Books
- Harper
- Harper Design
- Harper Inspire
- HarperCollins
- HarperFestival
- HarperLuxe
- HarperOne
- Harricana Productions
- Harrisxchange
- Harry N. Abrams, Inc.
- Harvard Department of the Classics
- Harvard University Press
- Harvey Miller Publishers
- Harwood-Academic Publishers
- Hat & Beard
- Hatje Cantz
- Haus Publishing Limited
- Hawes Music
- Hawksmoor Publishing
- Hawthorn Press
- Hay House Inc
- Haymarket Books
- Haynes Publishing
- Hays (Nicolas) Ltd , U.S.
- Hayward Gallery Publishing
- Hazan
- Hdw Publications
- Head in the Ground Publishing
- Head of Zeus
- Headline Book Publishing
- Headline Home
- Headline Publishing Group
- Headline Review
- Headpress
- Headstock Books
- Healing Arts Press
- Health Professions Press
- Healthy Living Spaces
- Hear My Heart Publishing
- Heartstring Productions
- Heather Dennis
- Heathway Press
- Heddon Publishing
- Hedgehog House
- Hedgehog Productions
Publishers: Heel Verlag - Hope Publishing Company
- Heel Verlag
- Heinrichshofen
- Helena History Press
- Helion & Company
- Heliotrope Books
- Helter Skelter Publishing
- Hemmingsen Publishing
- Heni Publishing
- Henle Verlag
- Henricus
- Henry Bradshaw Society
- Henry Holt & Company
- Henry Sturcke
- HenschelHAUS Publishing
- Herb Lester Associates
- Herbert & Cie Lang
- Herbert Press
- Herd Up Publishing
- Heritage House Publishing Co
- Heritage Music Press
- Hertfordshire Press
- Hertfordshire Publications
- Hesterglock Press
- Heugel
- Heupferd Musik Verlag
- Heuwekemeijer Muziekuitgeverij
- Hey Presto Strings
- Heyday Publishing
- Hidden Brook Press
- Hidden River
- Hieronimus & Co
- Higgins Publishing
- HighBridge Audio
- Highbury Safika Media
- Highpoint Life
- Hildebrand Press
- Hill Inc.
- Hillfield
- Hillsong Music Australia
- Hinkler Book Distributors
- Hinrichsen
- Hinshaw Music
- Hinton House
- Hips Road
- Hirmer Verlag
- HIS Publishing Group
- Hisarlik Press
- Historia
- Historic England
- Historic New Orleans Collection
- Historic Publishing
- History PR
- History Press
- History Through Fiction
- Histria
- Hit Media
- HMH Books for Young Readers
- HMS Publications
- Hn Books
- Hobnob Press
- Hodder & Stoughton
- Hoeflich
- Hofenberg
- Hoffman & Hoffman
- Hoffnung Partnership
- Hofmeister
- Hohm Press, U.S.
- Holders Hill
- Holiday House
- Holmes & Meier Publishers
- Holon Publishing
- Holy Fire Publishing
- Holy Trinity Publications
- Home Brew Press
- HoneyRock Publishing
- Hong Kong University Press
- Honno
- Hookline Books
- Hope & Nonthings
- Hope Publishing Company
Publishers: Horney Media and Publishing - Hyuth Press
- Horney Media and Publishing
- Horngate Media
- Hostile Media
- Hot Methods
- Hot Tub Publishing
- Hot Wacks Press
- Houghton Library of the Harvard College Library
- Houghton Mifflin
- Houndstooth Press
- House of Anansi Press
- House of Bad Sensei
- House of Joy Publishing
- Houston Publishing, Inc.
- How2 Edizioni
- Howexpert
- HSRC Press
- Hub City Press
- Huck & Pucker
- Hudson Music
- HUG Musikverlage
- Hui Hanai
- Human Kinetics Publishers
- Humanics
- Humm Publishing
- Hungry Minds, Inc
- Hunt (John)
- Hunter Press
- Hutchinson
- Hydhbfaraz
- Hyperion
- Hyuth Press
