With the growing importance of the financial industry, financial service companies need to better understand the behavior of consumers and develop effective marketing strategies accordingly. This study examines the key determinants in the satisfaction of financial services customers. According to the study, "satisfaction with branches," "product profitability," "corporate stability," "convenience" and "relational benefits" have an impact on the satisfaction levels. In particular, "branch satisfaction" was a vital factor for bank-centered customers, while "product diversity" was a key for securities-centered customers. This study will hopefully benefit not only financial companies, but also regulators and authorities in the finance industry.