BOK Financial, Headquartered in Tulsa, Oklahoma, BOK Financial Corporation (NASDAQ: BOKF) is a top U.S.-based financial services holding company with operations in Oklahoma, Texas, Arizona, Arkansas, Colorado, Kansas, Missouri, Tennessee and New Mexico. With more than 46 years of experience in the financial services industry, TransFund delivers exceptional payment processing solutions with service, knowledge, and consultation, so that clients can differentiate themselves, compete with companies of any size, and profitably expand their business.