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About Us

Our Mission

To deliver solutions of real value that help individuals, businesses and community institutions manage their financial lives with clarity and confidence.

More Options, More Flexibility, More Convenience

MountainOne offers you banking services, customized insurance products, and comprehensive investment management with more flexibility. As your needs change and grow, MountainOne will be there to grow with you.

Always Serving You Better

MountainOne has over 165 years of commitment to our customers and communities. Today, that commitment is even stronger. We look forward to being your financial partners for life. MountainOne includes:

  • MountainOne Bank
  • Williamstown Savings Bank, a Division of MountainOne Bank
  • South Coastal Bank, a Division of MountainOne Bank
  • Coakley, Pierpan, Dolan & Collins, a Division of MountainOne Bank
  • True North Insurance, a Division of MountainOne Bank
  • True North Financial, a Division of MountainOne Bank

By combining these entities under the MountainOne umbrella, we are able to deliver solutions of real value that reduce complexity and enrich the households, businesses, organizations, and communities we serve.

With an original bank charter dating back to 1848, MountainOne Bank serves communities in Massachusetts from the Berkshires to the South Shore. As we have grown, our service offering has evolved to meet the growing needs of our customers. Today our bank has nearly $800 million in assets, and we have the people, technology, and mission to deliver trusted financial solutions and an exceptional customer experience across our business lines.

MountainOne has always been committed to serving our customers and our community. Today, that commitment is stronger than ever. We invite you to experience banking, insurance, and investments from a higher perspective.