Our History

On April 26, 1848, North Adams Savings Bank is incorporated by Isaac Hodges, Thomas Robinson, William E. Brayton, and associates. The bank is located at 86 Main Street, North Adams.

Rockland Savings Bank is incorporated under the name "East Abington Savings Bank."

East Abington Savings Bank was renamed Rockland Savings Bank following the incorporation of the Town of Rockland.

Mechanics Cooperative Bank founded in Taunton, MA.

Williamstown Savings Bank is chartered in Williamstown, MA, thus meeting the growing need for banking services in the Berkshires.

Two North Adams businessmen, Harold Crippen and William Geddes, purchase the Reinhard Insurance Agency and rename it Geddes & Crippen. This moment marks the founding of what would later become Coakley, Pierpan, Dolan & Collins, now known today as MountainOne Insurance Agency.

The North Adams Savings Bank and Hoosac Savings Bank merge to become the North Adams Hoosac Savings Bank, later known as Hoosac Bank.

In May 1997, Coakley, Pierpan, Dolan & Collins Insurance Agency spun off True North Financial Services from its financial services department, establishing a separate company to provide more specialized financial services and expanding what would later become the MountainOne family of companies.

North Adams Hoosac Savings Bank changes its name to Hoosac Bank.

Under acting Governor Paul Cellucci, Banks are now allowed to own insurance agencies in the Commonwealth. At the end of 1998 and beginning of 1999, Coakley, Pierpan, Dolan & Collins and True North Financial Services are acquired by Hoosac Bank, becoming the first agencies purchased by a Bank in the Commonwealth.

Rockland Savings Bank changes its name to South Coastal Bank.

MountainOne Financial Partners forms as a bank holding company of Hoosac Bank and Williamstown Savings Bank; thus creating an affiliation between the two entities.

Mechanics Cooperative Bank expands footprint into North Dighton, MA.

South Coastal Holdings, the holding company of South Coastal Bank, merges with MountainOne Financial Partners, the holding company of Hoosac Bank and Williamstown Savings Bank. MountainOne Financial Partners is the surviving entity.

Mechanics Cooperative Bank merges with Bridgewater Cooperative Bank of Bridgewater, MA.

Mechanics Cooperative Bank merges with Lafayette Federal Savings Bank of Fall River, MA expanding the branch network from 4 to 8 with branches now located in Fall River, Westport, Somerset, and Swansea.

Mechanics Cooperative Bank reorganizes into a mutual holding structure under Mechanics Bancorp, MHC.

January - Hoosac Bank and Williamstown Savings Bank merge, each retaining their brand names.

February - Stevenson & Company, an insurance agency established in 1867, is acquired by Coakley, Pierpan, Dolan & Collins. The two companies continue to operate separately.

June - MountainOne Financial Center opens at the William Stanley Business Park, the former site of General Electric, and both Coakley, Pierpan, Dolan & Collins’ and Stevenson & Company move to this location.

December - South Coastal Bank merges into Hoosac Bank, retaining the South Coastal brand name.

All three previously merged entities, Hoosac Bank, Williamstown Savings Bank and South Coastal Bank, officially become and change name to MountainOne Bank, headquartered in North Adams, MA.

Non-banking units owned by Hoosac Bank become divisions of MountainOne.

A rebranding process is underway at each bank to fully integrate each bank to the MountainOne brand name.

Mechanics Cooperative Bank launches Mechanics Investment Group, expanding financial planning and investment services for customers.

On January 1, 2017, Coakley, Pierpan, Dolan & Collins and True North Insurance Agency merge and simultaneously rebrand under the name MountainOne Insurance Agency, Inc.

The MountainOne Brand further evolves with the launch of a new Brand Campaign across all markets; Mo the MountainOne Spokesgoat is created, and introduced to the world.

Mechanics Cooperative Bank opens New Bedford Branch, expanding into the greater New Bedford market.

In January, MountainOne Insurance acquires CIA Insurance Agency dba Cross-Pittsfield, thereby becoming the largest agency in the Berkshires. Cross- Pittsfield was comprised of the former agencies, Colt Insurance and Bardwell, Bowlby & Karam Insurance.

MountainOne reports its most successful year in its history, with record earnings of $12.0 million, a strong balance sheet, and capital of $104.7 million.

MountainOne Insurance acquired CIA Insurance Agency, dba Cross-Pittsfield, and became the largest insurance agency in the Berkshires. Cross-Pittsfield included the former agencies Colt Insurance and Bardwell, Bowlby & Karam Insurance.

Mechanics Cooperative Bank opens new Corporate Headquarters at 470 Myles Standish Boulevard in Taunton, MA, bringing back-office teams together under one modern, state-of-the-art facility designed for the future of the organization.

MountainOne celebrates its 175th anniversary since the bank’s incorporation in 1848.

January — MountainOne Insurance expands into Stockbridge, MA, opening a new office at 31 Main Street. Later in the month, the agency acquires G.W. Morisi Insurance, a third-generation family-owned firm in Longmeadow, MA, expanding its presence in the Pioneer Valley.

April — MountainOne hosts its 175th Annual Business Meeting, concluding its anniversary celebrations. MountainOne also releases its first-ever children’s storybook, “How to Climb a Mountain,” starring Mo the MountainOne Spokesgoat.

November — MountainOne Insurance acquires McClure Insurance Agency, adding new offices in West Springfield and Wilbraham, MA, further expanding its Pioneer Valley footprint.

March – MountainOne Financial, MHC (the mutual holding company of MountainOne Bank) and Mechanics Bancorp, MHC (the mutual holding company of Mechanics Cooperative Bank) enter into a formal agreement to merge into a combined mutual holding company. The agreement was approved by both boards and corporators and awaited regulatory approvals.

April – MountainOne announces second children’s storybook, “Something to Save” with Mo the MountainOne Spokesgoat.

November – MountainOne Financial, MHC and Mechanics Bancorp, MHC receive all required regulatory approvals to complete their mutual holding company merger, with the transaction scheduled to take effect on January 1, 2026.

January – The mutual holding company merger between MountainOne Financial, MHC and Mechanics Bancorp, MHC takes effect, forming a combined organization under the name MountainOne Financial, MHC, while both banks continue to operate independently.

January – MountainOne Insurance Agency acquires the Amy R. Morey Insurance Agency, expanding the agency’s footprint into Greenfield, MA, and strengthening its presence in the Pioneer Valley.