Press OR Books Orchard Books O'Reilly Media Orion Books Orion Publishing Group Osprey Publishing Other Press The Overlook Press Oxford University Press P Packt Palgrave Macmillan Pan Books – now Pan Macmillan Pantheon Books Papadakis Publisher Parachute Publishing Parragon Pathfinder Press Paulist Press Pavilion Books – UK publisher of illustrated books Pecan Grove Press Pen and Sword Books Pendleton Publishing Penguin Books UK Penguin Random House UK Penn State University Press Persephone Books Perseus Books Group – American publishing company Peter Lang Peter Owen Publishers Phaidon Press Philosophy Documentation Center Philtrum Press Picador Pimlico Books at Random House Playwrights Canada Press Pluto Press Point Blank – an imprint of Wildside Press Poisoned Pen Press Policy Press Polity Practical Action J. Q. Preble Prentice Hall Prime Books Princeton University Press Profile Books Progress Publishers Prometheus Books Puffin Books – an imprint of Penguin Books Purple House Press Pushkin Press Q The Quarto Group Que Publishing Quebecor Quirk Books R Random House Red Circle Authors Redstone Press Reed Publishing previously A.H. & A.W. Reed RELX Remington & Co Riverhead Books Robert Hale London based independent publishing house since 1936 Robson Books Rock Scorpion Books Rodopi Routledge Kegan Paul now Routledge, an imprint of Taylor & Francis Group publishing Rowman & Littlefield Royal Society of Chemistry S S&P Global SAGE Publishing St. Martin's Press Salt Publishing Sams Publishing Samuel French theater/script publishers Schocken Books Scholastic Corporation Scribner Seagull Books Serif Shambhala Publications Shire Books Shuter & Shooter Publishers Sidgwick & Jackson Signet Books an imprint of New American Library Simon & Schuster Sinclair-Stevenson Society for Promoting Christian Knowledge Sort of Books Sounds True Sourcebooks South End Press Spinsters Ink Springer Science+Business Media (formally Springer Verlag) Square One Publishers Stanford University Press The Stationery Office – publishers of UK government publications; was the printing arm of the HMSO Steidl Stein and Day a defunct US publisher Summerwild Productions – a Canadian independent book publisher Summit Media SUNY Press T T&T Clark Tachyon Publications Tammi, Finland Target Books – now part of Virgin Publishing Tarpaulin Sky Press Tartarus Press Tate Publishing & Enterprises Taunton Press Taylor & Francis Ten Speed Press Thames & Hudson (UK) Thames & Hudson USA Thieme Medical Publishers Third World Press Thomas Nelson Three Sirens Press defunct Ticonderoga Publications Time Inc. Times Books Titan Books Top Shelf Productions Tor Books Triangle Books – a paperback imprint of Society for Promoting Christian