Established in 2006 in SD - Founded by T. Denny Sanford, Chairman and C.E.O. of United National Corporation, a bank holding company headquartered in South Dakota. Sanford made his fortune as the owner of First Premier Bank, and Premier Bankcard, both among the nation's leading credit card providers. Sanford is a noted philanthropist, having been listed by Business Week magazine as a generous benefactor and, among other philanthropic activities, for donating $400 million to Sioux Valley Hospitals and Health System, later renamed Sanford Health. T. Denny Sanford has committed to The Giving Pledge, and has pledged to give away at least half of his wealth to philanthropy.