Randolph Bancorp, Inc. is a bank holding company, which engages in the provision of banking services through its subsidiary, Envision Bank. It operates through Envision Bank and Envision Mortgage segments. The Envision Bank segment consists interest earned on loans and investment securities and customer service fees on deposit accounts. The Envision Mortgage segment comprises gains on loan origination and sales activities, loan servicing income, and interest income on loans held for sale and residential construction loans. The company was founded in 1851 and is headquartered in Quincy, MA.