In 1989, a group of elite professionals joined under the leadership of Mr. Yung-Jen Huang, who combined extensive banking business and financial theory, and pledged to "attain the summit and pursue the best." ESB was born to realize these high ideals to be a first-class bank in 1992.

E.SUN Financial Holding Co., Ltd. came into birth in 2002, spearheading the expanded business horizons of E.SUN Conglomerate. Since then, E.SUN Commercial Bank, E.SUN Securities Co., Ltd, E.SUN Insurance Brokers Co., Ltd, and E.SUN venture Capital Co., Ltd have teamed up closely with one another for integrating six prime resources, i.e., brand names, corporate culture, human resources, products, information and customer bases for insistent commitment of brand name and professional TQM and service.