Jimmy Wales

American Internet entrepreneur best known as a co-founder and promoter of the online non-profit encyclopedia Wikipedia and the Wikia company. He earned bachelor’s and master’s degrees in finance. While in graduate school, he taught at two universities, but left before completing a PhD in order to take a job in finance and later worked as the research director of a Chicago futures and options firm. In 1996, he and two partners founded Bomis, a male-oriented web portal featuring entertainment and adult content. The company would provide the initial funding for the peer-reviewed free encyclopedia Nupedia (2000–2003) and its successor, Wikipedia.

On 15 January 2001, with Larry Sanger and others, Wales launched Wikipedia, a free, open content encyclopedia that enjoyed rapid growth and popularity, and as Wikipedia’s public profile grew, he became the project’s promoter and spokesman. He is historically cited as a co-founder of Wikipedia, though he has disputed the "co-" designation, declaring himself the sole founder. Wales serves on the Board of Trustees of the Wikimedia Foundation, the non-profit charitable organization he helped establish to operate Wikipedia, holding its board-appointed "community founder" seat. In 2004, he co-founded Wikia, a for-profit wiki-hosting service. His role in creating Wikipedia, which has become the world’s largest encyclopedia, prompted Time magazine to name him in its 2006 list of "The 100 Most Influential People in the World".

Jimmy Wales has lived in London since 2012, and became a British citizen in 2019. He has been married three times and has three daughters.