Company Story
1868 - Frost National Bank was founded by Thomas Frost in San Antonio, Texas.
1892 - Cullen Bank was founded by James E. Cullen in Houston, Texas.
1922 - Cullen Bank merged with Frost National Bank to form Cullen/Frost Bankers, Inc.
1977 - Cullen/Frost Bankers, Inc. went public with an initial public offering (IPO).
1993 - The company acquired the Bank of San Antonio.
2008 - Cullen/Frost Bankers, Inc. acquired the assets of failed bank, AmTrust Bank.
2013 - The company acquired WNB Tower Bancshares, Inc.
2015 - Cullen/Frost Bankers, Inc. acquired the assets of Opportunity Bancshares, Inc.