Experience Convenient, Local Banking

Marlborough Savings Bank and North Middlesex Savings Banks have joined forces to create a bank that not only provides the conveniences that people demand, but the services and support that people need. This bank is Main Street Bank. As two mutual banks that have been in our communities for generations, we share the same values. We do all we can to support one another in a quest for a greater quality of life. Committed to making our communities stronger, we provide a full range of products and services that meet the needs of individuals, families and businesses; the personal attention to guide smart decisions; and support for the organizations that share our commitment to helping others. In addition, our combined institutions will offer enhanced benefits such as increased lending capacity, a larger network of branches and ATMs, and allow us to continue our legacy of being a responsible neighbor while delivering easy, hassle-free banking.

We do this because, like those we serve, we believe: Our lives are richer when we support one another. This is the guiding principle for how Main Street Bank does business.


You asked. We listened.

Change of any kind can be uncomfortable, and we are so grateful to you for sticking with us through the changes that have occurred with our merger and system conversion. We heard a lot of great feedback to help us become a better bank for you, but a few points in particular stood out – […]

What To Expect Next

It’s official – our systems are all on the same page now. We’ve gone through conversion, and are ready to assist you at ANY location. Following our conversion, here are some important updates to be aware of: There’s now only ONE Online Banking login area for everyone – yay for being united! You can log […]

Merger Complete – Main Street Bank

MARLBOROUGH, Mass. and AYER, Mass. – April 1, 2017 – Marlborough Savings Bank (www.agreatbank.com), a wholly-owned subsidiary of Marlborough Bancshares, Inc. and Marlborough Bancshares, MHC, and North Middlesex Savings Bank (http://www.nmsb.com), a mutual savings bank, today announced the completion of their merger, which was effective on April 1, 2017. The merger was completed pursuant to […]

Preview Main Street Bank’s New Website

Welcome to a preview of Main Street Bank’s new website! For your convenience, we want to point out the most common areas you’ll want to visit. Take a look! Download PDF

Merger Customer Questions and Answers

Merger of Marlborough Savings Bank and North Middlesex Savings Bank Customer Questions & Answers You’ll find answers about any changes to your account(s) as we merge our systems on June 5, 2017 in the links below followed by a Q&A for quick reference. Main Street Bank Product Guide Important Information for former North Middlesex Savings […]

What to Know About Our New Name and Brand

“What will the new name be?” In regards to our upcoming merger with North Middlesex Savings Bank, due to be official in early April of 2017, we have heard the question about the new name and brand on several occasions. The union of our two organizations is one that is cause for excitement, and will […]

Merger Updates for Our Customers

Since we announced the news of our merger with North Middlesex Savings Bank on July 12, 2016, a lot of work has been done! Our customers are our first priority, and we want to share a few important updates with you. We have officially selected a new name and logo. Both banks held an employee brand […]

Merger of Marlborough Savings Bank and North Middlesex Savings Bank

July 12, 2016 An Open Letter to Our Customers, On behalf of the teams who proudly represent Marlborough Savings Bank and North Middlesex Savings Bank, we are excited to announce this mutually beneficial merger of two community-centered banks. The two banks are vibrant and strong, but we will be stronger together. This new partnership will […]

Merger Press Release

July 12, 2016   MARLBOROUGH SAVINGS BANK AND NORTH MIDDLESEX SAVINGS BANK ANNOUNCE MUTUALLY BENEFICIAL MERGER (MARLBOROUGH, MA. and AYER, MA., JULY 13, 2016) — Marlborough Savings Bank and North Middlesex Savings Bank today announced plans to merge and create a new, larger mutual savings bank to provide even greater service and convenience to customers. […]