FirstSun Capital Bancorp operates as a bank holding company for Sunflower Bank that provides commercial and consumer banking and financial services to small and medium-sized companies in Texas,Kansas, Colorado, New Mexico, and Arizona. The company was formerly known as Sunflower Financial, Inc. and changed its name to FirstSun Capital Bancorp in June 2017. FirstSun Capital Bancorp was founded in 1892 and is headquartered in Denver, Colorado.