Union Bank is one of the largest financial institutions in the world, who has customers best interests at heart. We provide a wide spectrum of corporate, commercial, retail banking and wealth management solutions to meet the needs of customers. Union Bank at 27730 Santa Margarita Parkway in Mission Viejo CA also offers an extensive portfolio of value added solutions for customers, including investment banking, personal trust, capital markets, global treasury management, transaction banking and other services. Union Bank believes when you do whats right for customers, long lasting relationships will follow.