We believe real estate should strengthen communities, create opportunities, and help people feel at home long before and long after closing day.
Our Story
Portside was founded in 2012, with a belief that real estate could be more human. More connected. More community-driven. We set out to build more than a brokerage. We built a place where relationships come first, people feel supported, and success is measured not only by the homes we help buy and sell, but by the impact we make together. That purpose continues to guide everything we do.
Growing with Purpose
Since opening our doors, Portside has grown from a single office into the leading independently owned brokerage in Northern New England. Along the way, we've expanded thoughtfully, welcoming new offices (12 total!), new communities, and thousands of clients who share our belief that real estate is about people first. See our reach.
That same commitment inspired the creation of the Portside Foundation and our 1% Back initiative, through which we've contributed more than $1.4 million to local nonprofits strengthening the communities we call home. Learn more here.
Our Next Chapter
From the day Portside was founded, we've believed that real estate is about people first.
That belief led us to a partnership with Howard Hanna — the nation's largest independently owned and operated brokerage, and like Prtside, they've built their company around people, relationships, and community.
We are excited to have found a partner who helps us become even more of who we already are. Together, we'll have more resources, more opportunities, and more ways to support our agents and clients, while preserving our culture and local leadership and creating greater long-term stability for the future.
Our Committees
Portside's 2026 Market Report
In 2025 we had the opportunity to help over 2,300 families across Maine and New Hampshire. We closed more than $1.4 billion in sales, landing us the #1 spot for independently owned real estate brokerages in Northern New England. What means just as much is our ongoing commitment to giving back. Through our 1% Back initiative and community events, we raised and donated over $300,000 to local nonprofits, supporting the places and people who break detrimental generational cycles.
This was also a year of meaningful growth, with a 25% increase in sales volume across the company. We proudly welcomed The Swan Agency in Bar Harbor to the Portside family, expanding our footprint Downeast and bringing decades of expertise in the hospitality and luxury markets. This addition also marked the launch of our Hospitality Sales Division. We also opened our newly built flagship office in Portsmouth, New Hampshire, strengthening our presence along the Seacoast and positioning us for continued growth in this dynamic market.
Behind the scenes, we invested heavily in our agents, expanding coaching and training, welcomed many new incredible agents and staff members, and partnered with Absolute Title to provide even greater support to our clients with checkless closings and mobile closing vans.
Portside was built on the idea that real estate can be done differently, and we continue to build a business based on care, community, and local connection.
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