IBC was founded in 1966 to meet the needs of small businesses in Laredo, Texas. Today, it serves as the flagship bank of International Bancshares Corporation. Since opening its doors in 1966, IBC's assets have grown from less than $ 1 million to over $9 billion in assets. IBC has more than 160 facilities and over 250 ATM's serving more than 70 communities in Texas and Oklahoma.

IBC First Equity - a division of International Bank of Commerce. handles the residential mortgage needs of IBC Bank customers

The National Bankers Association awarded IBC their coveted High Performance Bank Award in 1987, 1990, and 1992, in recognition of the leadership qualities and excellence in overall performance and service exhibited by IBC. IBC has also received the prestigious George Washington Honor Medal from the Freedoms Foundation at Valley Forge, and the United Way Corporate Excellence Award for its active and strong community support. In 2001 Texas Governor Rick Perry honored IBC with the Governor's Volunteer Award.