Publishers – A
Publishers: A & C Black - Amber Lane Press
- A & C Black
- A & R Marketing Limited
- A A Balkema Publishers
- A Cappella Books
- A-R Editions
- Aarhus University Press
- Aaron Publications
- Abbeville Press
- ABC Books
- ABC-CLIO
- Abingdon Press
- Ablaze
- Aboriginal Studies Press
- Abrams Appleseed
- Abrams Press
- ABRSM Publishing
- Absolute Press
- Abstract Sounds Books
- Academic Press
- Academic Studies Press
- Academica Press
- Acair
- Acapella Publishing, U.S.
- ACC Art Books
- Accelerated Development
- Accent Press
- ACM
- Acorn Books
- Acoustics Publishing
- ActarD Inc
- Actes Sud
- Action Lab Entertainment
- Acumen Publishing
- Ad Lib Publishers
- Adams Media Corporation
- Addax Publishing Group, U.S.
- Addison Wesley
- ADG Productions
- Advance Music
- Advantage Media Group
- Aebersold Publications
- Africa Research & Publications
- African American Images
- AfroAm Publishing
- After the Battle
- Agate Publishing
- Agenda Publishing
- Aiora Press
- AirTurn
- AK Press
- Akashic Books, U.S.
- Alain de Gourcuff
- Alaska Native Language Center
- Alaska Northwest Books
- Alazar Press
- Albatros
- Albatros Media
- AldineTransaction
- Aleph Book Company
- Alfred A. Knopf
- Alfred Lengnick
- Alfred Publishing
- Algonquin Books
- Alison Green Books
- Allen & Unwin
- Allen Lane
- Allworth Press
- Alma Books
- Almighty & Insane Books
- Alpha Books
- Alphabet Legends
- Alphascript Publishing
- Alphonse Leduc
- AltaMira Press, U.S.
- Amadeus Music
- Amadeus Press
- Amalion Publishing
- Amazon Publishing
- Amber Books
- Amber Lane Press
Publishers: Amberley Publishing - Atmosphere Press
- Amberley Publishing
- Ambra Verlag
- American Bar Association
- American Library Association
- American Mathematical Society
- American Psychological Association
- American University in Cairo Press
- Amistad Press
- Ammonite Press
- Amphion
- AMPS 001
- Amsco Publications
- Amsterdam University Press
- Analytic Press
- Anchor Books
- And Other Stories
- Andersen Press
- Andrew Byrne Studio
- Andrews McMeel Publishing
- Animal Media Group
- Anness Publishing
- Annick Press
- Anomie Publishing
- Anova Books
- Ant and Feather
- Antenne Publishing
- Anthem Press
- Anthology Editions
- Anthroposophic Press
- Anti-Oedipus Press
- Antique Collectors' Club
- Antoni Bosch
- Anvil Press
- Aperture Press
- Apex Publishing
- Apollo Publishers
- Apollo Verlag
- Applause Books
- Apple Press
- APress
- April Avenue Media
- ARC Books & Publishing
- Arc Humanities Press
- Arc Publications
- Arcadia Books
- Archaeopress Archaeology
- Archie Comic Publications
- Archive Books
- Arcturus Publishing
- Ardsley House Publishers Inc., U.S.
- Argo
- Ariel Publicity & Cyber PR
- Arkbound
- Armadillo
- Armelin Musica
- Arnoldsche
- Arrow Books
- Arsenal Pulp Press
- Art Issues Press
- Artangel
- Arthur H. Clark Company
- Artisan
- ArtistPro
- Artists Bookworks
- Ascent Book Publishing
- Ashgate Publishing
- Asian Art Museum of San Francisco
- Askill Publishing
- Aspekt
- Associacao Avalanche
- Associated University Presses
- Astoria Verlag
- Astral Horizon Press
- Atebol
- Atelier Editions
- Ateneo de Manila University Press
- Atlantic Books
- Atlantis Musikbuch-Verlag AG
- Atlas Press
- Atmosphere Press
Publishers: Atria Books - AWSNA Publications
- Atria Books
- AU Press
- Auckland University Press
- Audible/Bolinda Audio
- Augsburg Fortress
- Aureus Publishing
- Aurora Metro Publications
- Aurum Press
- Austin Macauley Publishers
- Australian Academic Press
- Australian Council Educational Research (ACER)
- Australian Scholarly Publishing
- Auteur Publishing
- Authentic Media
- Authorhouse
- Authors Online
- Autolycus Press
- Autonomedia
- Autumn Publishing
- Auzou Publishing
- Avalon Publishing Group
- Avalon Travel Publishing
- Avid Readers Publishing Group
- AVON
- Avon Books
- AWSNA Publications