Topic summary
Publishing house

Extracted from the Wikipedia article Publishing.
Mainstream publishers
In 2013, Penguin (owned by Pearson) and Random House (owned by Bertelsmann) merged, narrowing the mainstream publishing industry to a handful of big publishers as it adapted to digital media. The merger created the largest consumer book publisher globally, with a global market share of more than 25 percent. As of 2022, approximately 80% percent of the United States trade market for books was controlled by the "Big Five" publishing houses: Penguin Random House, Hachette, HarperCollins, Simon & Schuster, and Macmillan.