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We've GOAT Big News!

The Parent Companies of MountainOne Bank and Mechanics Cooperative Bank have entered into an agreement to merge into a combined Mutual Holding Company.

Welcome, McClure Insurance Customers

MountainOne is excited to welcome customers of McClure Insurance Agency to the MountainOne family! Now we’re covering more ground in the Pioneer Valley with three locations!

First-time Homebuyer Program

Are you a first-time homebuyer? We have the perfect thing: MountainOne’s $650 First-Time Homebuyer Credit! Ask one of our mortgage lenders for details today!

We've Got You Covered

Have you herd? MountainOne is a strong and stable financial institution, and well positioned for today’s economic environment. As a DIF Member Bank, all deposits with MountainOne are fully insured in excess of existing FDIC coverage. Questions? Don’t fret! Our Mountaineers are here to help. It’s in our nature!

Meet Mo

When it comes to spokesgoats, he’s the G.O.A.T. Mo is a reminder that at MountainOne, banking isn’t just on our minds; it’s in our nature.

Community

MountainOne is proud to be a part of our local communities since 1848. We offer a variety of resources including our Community Dividend Program, financial education outreach and employee volunteer services.

Careers

MountainOne is dedicated to the local communities we serve, with a mission of delivering solutions of real value that help individuals, businesses, and community institutions manage their financial lives with clarity and confidence.

Security

We’d move mountains to protect your accounts. That’s why MountainOne invests in enhanced fraud monitoring tools that can help detect unwanted account activity hopefully before it’s too late.

Recent Updates

July 10, 2025

Awards honor the “best of the best” in PR, communications, and marketing in New England MountainOne is the proud recipient of a Silver Bell Ringer Award, announced during the 57th...

July 10, 2025

MountainOne’s Storybook Team recently joined the afterschool program at Brayton Elementary School in North Adams, bringing smiles, stories, and early financial lessons to local students. As part of the visit,...

SCHEDULED MAINTENANCE: Digital Banking may be unavailable on Sunday, July 13, between 12:00am–4:00am for routine system maintenance. Please submit any transactions before or after this timeframe. Thank you!