THE (ALMOST) UNDELETED

BIG

Baen
Bloomsbury
Del Rey
McMillian
Penguin Group. Try also their useful subject catalog)
Random House
Simon & Schuster
St. Martin's Press
Time Warner Books

HIGH END

Centipede Press
Charnel House

SMALL PRESS SF

Arkham House
Babbage Press
Borderlands Press
Dark Regions
DAW Books
Dedalus Books
Delerium Press
Dover Books SF line
EDGE and Tesseract Books
Earthling Press
Fox Acre Press
Gauntlet Press
Golden Gryphon Press
ISFIC
NESFA Press
Night Shade Books
Orbit
Phantasia Press
Prime Books
PS Publications
Pyr
Small Beer Press
Subterranean Press
Tachyon Publications
Underwood Books
Wheatland Press
Wildside Press
Wormhole Books
Wyrm Books

SCHOLARLY

Galactic Central Press
Greenwood Press SF nonfiction line
McFarland Press

IMPRINTS

Here is a resource for determining which imprints belong to which parent. I think it's in development (at least I hope it is).

MAINSTREAM PUBLISHERS (will not be updated as frequently)

Allen & Unwin
Amber Lane Press
Anderson Press
Angus & Robinson
Applause Theatre & Cinema Books
Arcade Publishing
Ardis Books
Aurora Metro Press
Bitter Lemon Press
Brooklyn Publishers
Cambridge University Press
Camden House
Canongate
Carcanet Press
Carroll and Graf
City Lights
Chicken House
Coffee House Press
Constable & Robinson
Cornell University Press
Currency Press
Dalkey Archive Press
Dorchester Publishing
Dramatic Publishing
Dramatist's Play Service
Egmont Books
Elridge Plays & Musicals
Faber & Faber
Frances Lincoln
Green Integer
Green Knight Publishing
Grove/Atlantic
Harcourt
Harlequin
HarperCollins
Harvard University Press
Hodder Headline
I. E. Clark Publications
Intellect Publishing
Joseph Weinberger
Kensington Books
Kodansha
McPherson & Company
Methuen
New Directions
New York Review of Books Classics
Nick Hern Books
North-South Books
Northwestern University Press
Oberon Books
Omnidawn
Orion Books
Usborne
Overlook Press
Oxford University Press
Peter Lang
Pioneer Drama Service
Post-Apollo Press
Prometheus Books
Pushkin Press
Samuel French
Serpent's Tail
Severn House
Shambhala
SUNY Press
TOR Books
Ugly Duckling Presse
University of Queensland Press
Virago Press
Voyager
WW Norton & Company
Zephyr Press

I'll add to this as I have time. Please make suggestions if you regularly visit SF publisher's sites. I'd like to have a complete listing, then keep it updated.

where's TOR fall?
searched at the imprints site and it said the company is St. Martin's or something

Baraka Bryan wrote:where's TOR fall?
searched at the imprints site and it said the company is St. Martin's or something

Tor is now owned by McMillan.

Omphalos wrote:

Baraka Bryan wrote:where's TOR fall?
searched at the imprints site and it said the company is St. Martin's or something

Tor is now owned by McMillan.

gotcha.

There's Orbit.

Liege-Killer wrote:There's Orbit.

Thanks. Added. I had thought that they were an imprint of Tor, which is owned by McMillain, but now that I think of it, I believe that is Orb, not Orbit.