Find out about the owners of the Arizona Diamondbacks, their net worth, source of wealth and ownership history of the MLB franchise. The Arizona Diamondbacks are a household name in the MLB, based in Phoenix, Arizona. The Diamondbacks are a member club of the National League West Division and were established in 1998 as an expansion team. The Arizona Diamondbacks made history by becoming the youngest team to win a championship following their World Series success in 2001. They play their home games at Chase Field. Who owns the Arizona Diamondbacks? The Arizona Diamondbacks MLB franchise is currently owned by Ken Kendrick, who is the principal owner. Carlisle Investments, Jim Weber, and Alfredo Molina are part of the ownership structure and hold minority shares in the team. The Arizona Diamondbacks' ownership structure Ken Kendrick Earl Gentry "Ken" Kendrick Jr. is an American businessman who is the principal owner of the Diamondbacks. His wealth was accrued in software (...