There are few companies in Southern Nevada with roots as deep as the Thomas & Mack Co. The families began their partnership in 1954 when E. Parry Thomas and Jerome D. Mack established The Bank of Las Vegas, which was later expanded statewide as Valley Bank of Nevada. Their pioneering efforts in financing the gaming industry made Valley Bank of Nevada one of the fastest growing financial organizations in the United States until its merger with the Bank of America in March 1992.