International Bancshares Corporation, a financial holding company, provides commercial and retail banking services in Texas and the State of Oklahoma. It accepts checking and saving deposits; and offers commercial, real estate, personal, home improvement, automobile, and other installment and term loans. The company also provides international banking services, including letters of credit, commercial and industrial loans, and foreign exchange services. In addition, it offers other banking related services, such as credit cards, safety deposit boxes, collection, notary public, escrow, drive up and walk up facilities, and other customary banking services; and Internet banking services, as well as securities products through third party providers. The company was founded in 1966 and is headquartered in Laredo, Texas.