Maine’s Commercial Real Estate Specialists
Find your property
Put Our Collaborative Approach to Work For You
For over 45 years, The Dunham Group has provided in-depth market knowledge and trustworthy representation to our clients. Our objective is to help our clients realize their vision and this commitment has helped us build long-term, loyal partnerships. We like to get to know our clients the way we know Maine’s commercial market properties – which means we listen, we pay attention, and we do our research. With our insightful data analysis, local expertise, and collaborative approach we connect our clients with the right opportunities for their growth.
On working with Justin: “Once we got there and saw the space, he had done his research. He had tons of data and facts. I was blown away. Immediately we could have a pretty informed decision that this was worth pursuing or not.”
— Tom Ruff, Orange Bike Brewing Company
Featured Commercial Properties
Our Team of Brokers
Our brokers work together as a team so our clients can benefit from their combined resources and knowledge. While we have a record of success that includes brokering many of Maine’s most recognizable commercial properties, what truly drives us is the relationships that we build with clients in the process.
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The Dunham Group commercial real estate brokers have proven industry expertise with a focus on:
Office
Retail
Industrial
Multi-Family
Land
Investment
Our brokers also specialize in:
- Dental
- Manufacturing
- Medical
- Mixed-Use
- Multi-Units
- Pad Sites
- Redevelopment
- Restaurant
- Special Purpose
- Storage
Expert Guidance From Market Specialists
Find your Maine commercial property.
Latest Company News
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The Dunham Group Brokers $23.5M Office Sale — Largest in Maine Year-to-Date
The Dunham Group is pleased to announce the successful brokerage of a $23.5 million office investment sale, marking the largest office transaction in Maine so far this year. Tom Moulton,…
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2026 Southern Maine Industrial Market Survey
We are pleased to announce the release of our 2026 Southern Maine Industrial Market Survey, marking the 15th year of our report and a major milestone in Maine market research.…
Recent Transactions
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Integral Consulting, Inc.
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Portland
Integral Consulting, Inc. leased 3,890± SF of office space at 45 Exchange Street from Cow Bella, LLC. Justin Lamontagne, CCIM, SIOR from The Dunham Group brokered the lease.
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Hazen & Sawyer, P.C.
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South Portland
Hazen & Sawyer, P.C. leased 2,582± SF of office space at 600 Southborough Drive from 400 Southborough, LLC. Curtis Dean from CD Commercial represented the tenant. Jim Harnden and Sam…