Farrar, Straus and Giroux
http://www.fsgbooks.com/index.htm

HarperCollins
http://www.harpercollins.com/channels.asp?channel=Poetry

Houghton Mifflin
http://www.houghtonmifflinbooks.com/

Knopf
http://www.randomhouse.com/knopf/poetry/index.pperl

Mariner
http://www.houghtonmifflinbooks.com/mariner/

Norton
http://www.nortonpoets.com/

Penguin
http://us.penguingroup.com/

Persea
http://www.perseabooks.com/

Random House
http://www.randomhouse.com/