| 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. |
| Bantam: SF imprint owned by the publisher Transworld. |
| Bantam Spectra: Science fiction imprint of Random House. |
| Carroll and Graf: US publisher. |
| Collins & Brown: UK publisher of the Paper Tiger imprint. |
| Daw Books: Science fiction imprint which is owned by Penguin Putnam. |
| Del Rey Books: SF imprint behind writers such as Eddings, Brooks, McCaffrey, Turtledove, Clarke, Hambly and Chalker. |
| Orbit: British imprint for science fiction books owned by Time Warner. |
| Penguin Group: US publishing group which owns SFF imprints such as Daw, Ace and Roc. |
| Telos: British publisher of SFF works, including many Doctor Who related tie-ins. |
| The Black Library: Book imprint of science fiction game publisher Games Workshop. |
| Tom Doherty Associates (TOR): Specialist SFF imprint based in the US. |
| Voyager Books: Voyager is the current SFF imprint of publisher HarperCollins. |
| Warner Aspect: SF imprint of US publisher Warner Books, Inc. |
| Wizards of the Coast: Publisher of various RPG novels based around Dungeons and Dragons and their other game worlds. |