Amegy Bank of Texas is a US-based commercial bank and a subsidiary of Zions Bancorporation. Headquartered in the Five Post Oak Park building in DALLAS, TX, it primarily offers consumer and commercial banking services in Houston and the Dallas–Fort Worth area. Its business banking division offers services in areas such as loans and lines of credit, merchant banking, online banking, family business banking, corporate investments, corporate trust services, foreign exchange, and insurance.