Baen Books
- Baen is the specialist science fiction imprint started by Jim Baen. Site has a free e-books archive of their authors' in-print works.
- http://www.baen.com/
Orbit - An international publisher of science fiction and fantasy books, owned by the Hachette Book Group. - http://www.orbitbooks.net/
Penguin Group - US publishing group which owns SFF imprints such as Daw, Ace and Roc. - http://us.penguingroup.com/
Telos - British publisher of SFF works, including many Doctor Who related tie-ins. - http://www.telos.co.uk/
Carroll and Graf - US publisher. - http://www.carrollandgraf.com/
Wizards of the Coast - Publisher of various RPG novels based around Dungeons and Dragons and their other game worlds. - http://www.wizards.com/
Bantam - SF imprint owned by the publisher Transworld. - http://www.booksattransworld.co.uk/scifi/home.htm
Del Rey Books - SF imprint behind writers such as Eddings, Brooks, McCaffrey, Turtledove, Clarke, Hambly and Chalker. - http://www.randomhouse.com/delrey/index.html