Century Bank Founded in a trailer in Somerville in 1969 by Marshall M. Sloane, Century Bank is New England’s largest family-run bank. The Sloane family has continued to grow Century into a bank that families rely on – a place where you can count on getting both personal attention, and sophisticated financial solutions.   Century Bank Service Telephone Customer Service Center: (866) 823-6887 Online Banking Login How to Log In 1. Visit the bank’s website https://www.centurybank.com/.     2. The…