Selected graphic novel publishers and imprints

Abrams Comicarts (includes Megascope) 
Amulet Books (Abrams)
Andrews McMeel Publishing (Simon & Schulster)
BOOM! Studios
Cicada Books
Conundrum Press (Consortium)
Drawn & Quarterly (Farrar, Straus & Giroux/Macmillan)
Emanata (Conundrum/Consortium)
Fantagraphics (WW Norton)
First Second (Macmillan)
HarperAlley (HarperCollins)
Graphic Mundi (Penn State University Press)
Graphix (Scholastic)
Iron Circus Comics
Kokila (Penguin Random House)
Lion Forge
Little, Brown Books for Young Readers (Hachette)
NBM Graphic Novels
Mad Cave Studios (Diamond Books, moving to Simon & Schuster)
Magnetic Press
Maverick! (Mad Cave Studios YA imprint, Diamond Books, moving to Simon & Schuster)
Microcosm Publishing
Nobrow/Flying Eye Books (Penguin Random House)
Oni Press
Papercutz (Macmillan)
Pantheon Graphic Library (Knopf Doubleday/Penguin Random House)
Quill Tree (HarperCollins)
Radiator Comics
Random House Graphic
Selfmade Hero (Abrams/Hachette)
Silver Sprocket
TOON Books (Consortium)
Top Shelf Productions (IDW Publishing)