Alfred A. Knopf, Inc. is an American publishing house that was founded by Blanche Knopf and Alfred A. Knopf Sr. in 1915. Blanche and Alfred traveled abroad regularly and were known for publishing European, Asian, and Latin American writers in addition to leading American literary trends. It was acquired by Random House in 1960, and is now part of the Knopf Doubleday Publishing Group division of Penguin Random House which is owned by the German conglomerate Bertelsmann.

Penguin Random House LLC is an Anglo-American multinational conglomerate publishing company formed on July 1, 2013, with the merger of Penguin Books and Random House. Penguin Books was originally founded in 1935 and Random House was founded in 1927. It has more than 300 publishing imprints. Along with Simon & Schuster, Hachette, HarperCollins and Macmillan Publishers, Penguin Random House is considered one of the 'Big Five' English language publishers.