The Wikimedia Foundation, Inc. (WMF, or simply Wikimedia) is an American non-profit and charitable organization headquartered in San Francisco, California. It is mostly known for participating in the Wikimedia movement. It owns the internet domain names of most movement projects and hosts sites like Wikipedia. The foundation was founded in 2003 by Jimmy Wales as a way to fund Wikipedia and its sister projects through non-profit means. 

, the foundation employs over 280 people, with annual revenues in excess of . Christophe Henner is chair of the board. Katherine Maher is the executive director since March 2016. 

The Wikimedia Foundation has stated its goal is to develop and maintain open content, wiki-based projects and to provide the full contents of those projects to the public free of charge. Another main objective of the Wikimedia Foundation is political advocacy. 

The Wikimedia Foundation was granted section 501(c)(3) status by the U.S. Internal Revenue Code as a public charity in 2005. Its National Taxonomy of Exempt Entities (NTEE) code is B60 (Adult, Continuing education). The foundation's by-laws declare a statement of purpose of collecting and developing educational content and to disseminate it effectively and globally. 

In 2001, Jimmy Wales, an Internet entrepreneur, and Larry Sanger, an online community organizer and philosophy professor, founded Wikipedia as an Internet encyclopedia to supplement Nupedia. The project was originally funded by Bomis, Wales' for-profit business. As Wikipedia's popularity skyrocketed, revenues to fund the project stalled. Since Wikipedia was depleting Bomis' resources, Wales and Sanger thought of a charity model to fund the project. The Wikimedia Foundation was incorporated in Florida on June 20, 2003. It applied to the United States Patent and Trademark Office to trademark "Wikipedia" on September 14, 2004. The mark was granted registration status on January 10, 2006. Trademark protection was accorded by Japan on December 16, 2004, and, in the European Union, on January 20, 2005. There were plans to license the use of the Wikipedia trademark for some products, such as books or DVDs.
What organization is this about?
The Wikimedia Foundation, Inc.