MidFirst Bank is a privately owned financial institution based in Oklahoma City. It is the largest privately owned bank in the United States with $31 billion in assets. Its primary markets include Oklahoma, Denver, Phoenix and Dallas, with commercial lending offices in Atlanta, Boston, Chicago, Cleveland, Houston, New York City, St. Louis and Southern California. MidFirst Bank has banking centers in Boulder and Edwards, Colorado. Additionally, the bank operates 1st Century Bank of Los Angeles as a division of MidFirst Bank and MidFirst Business Credit of Atlanta as a subsidiary of MidFirst Bank.