Alfred A. Knopf was a New York publishing house founded by Alfred A. Knopf Sr. in 1915. Alfred A. Knopf, Inc. was incorporated in February 1918.
In 1960, Random House acquired Alfred A. Knopf, Inc.
Random House was acquired by Bertlesmann in 1998. The registered business name Alfred A. Knopf, Inc. was dissolved on December 8, 1998.
In late 2008 and early 2009, the Knopf Publishing Group merged with Doubleday to form the Knopf Doubleday Publishing Group. In 2013, Random House was merged into the Penguin Group forming Penguin Random House, a joint venture between Bertelsmann (53%) and Pearson PLC (47%).
The name Alfred A. Knopf continues as a publishing division of Knopf Doubleday.