Randolph Bancorp, Inc. is a bank holding company of Envision Bank (the Bank). The Bank is a state-chartered savings bank. The Company operates through two segments: Envision Bank (EB) and Envision Mortgage (EM). EB segment consist of accepting deposits from customers within the communities surrounding the Bank’s five full-service branch offices, through the Internet, and investing those funds in residential and commercial real estate loans, home equity lines of credit, construction loans, commercial and industrial loans, and consumer loans. Its EM segment consist of the origination and sale of residential mortgage loans and the servicing of loans sold to government-sponsored entities. Its primary deposit-taking market is Norfolk County, Massachusetts. Its primary lending market is based in Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk and Worcester counties in Massachusetts, Kent, Newport, Providence, and Washington counties in Rhode Island and Hillsborough.