Posted in Web Santander Bank – Wikipedia May 20, 2019 Santander Bank, N. A. (/ ˌ s ɑː n t ɑː n ˈ d ɛər /), formerly Sovereign Bank, is a wholly owned subsidiary of Spanish Santander Group.It is based in Boston and its principal market is the northeastern United States. : https://en.wikipedia.org/wiki/Santander_Bank