International Bancshares Corporation operates through its subsidiary, International Bank of Commerce, providing commercial and retail banking services primarily in south and southeast Texas. The firm focuses on relationship banking, offering a range of products including checking accounts, savings accounts, and personal loans to individual customers.

IBC Bank emphasizes personalized service and aims to understand customers' needs to provide tailored financial solutions. The company's mission centers on helping customers "Do More" in their personal lives through various banking products and services. With a strong regional presence, IBC Bank serves as a key financial institution in its operating areas.