Maine's economy is more diversified than its reputation for lobster and lumber suggests. Five industries form the core of the state's economic activity — each rooted in Maine's natural resources and geography, but each also evolving through technology, sustainability investment, and changing market demand.

Forest Products
Life Sciences
Marine and Aquaculture
Food and Agriculture
Outdoor Recreation

Together, these sectors account for a significant share of Maine's employment, exports, and GDP. Here's a current look at each.

Forest Products

About 90% of Maine's 17 million acres of forestland is privately owned and sustainably managed — making forest products one of the state's most enduring industries. Traditional markets (lumber, paper mills) have contracted over decades, but the sector is actively reinventing itself around new opportunities.

The most significant of these is mass timber: engineered wood products like cross-laminated timber (CLT) that are strong enough to replace steel and concrete in construction. Mass timber is gaining traction as a lower-carbon building material, and Maine is positioned well to supply it. The University of Maine's Advanced Structures and Composites Center is a national leader in mass timber research and has developed its own large-format 3D printing technology using wood fiber composites.

Biobased manufacturing — creating products from biological rather than fossil fuel-derived materials — is another growth area. Maine's forest biomass is feedstock for everything from packaging materials to bio-based chemicals, and the state has invested in developing this supply chain.

Life Sciences

Maine's life sciences sector is anchored by two institutions with global reach:

IDEXX Laboratories, headquartered in Westbrook, is a world leader in veterinary diagnostics. The company develops diagnostic tests, instruments, and software used in veterinary practices and reference laboratories globally. It's one of Maine's largest private employers and a significant driver of high-wage job growth.

The Jackson Laboratory in Bar Harbor is a nonprofit biomedical research institution focused on genetics and genomics. Its work in cancer biology, precision medicine, and computational biology is cited internationally, and it operates a major mammalian genetics resource used by research institutions worldwide.

The sector is supported by a pipeline of talent from Maine's 20+ colleges and universities, research partnerships with Northeastern University's Roux Institute and the University of Maine, and innovation funding from organizations like the Maine Technology Institute. The combination of anchor institutions, university research capacity, and available funding makes life sciences one of Maine's highest-growth industries.

Marine and Aquaculture

Maine produces roughly 90% of the nation's lobster supply — an industry that supports thousands of fishing licenses, related supply businesses, and a significant portion of the coastal economy. But the marine sector has broadened considerably beyond lobster in recent years.

Aquaculture — the farming of oysters, mussels, kelp, and finfish — is one of Maine's fastest-growing agricultural categories. Maine-grown oysters have developed a strong premium market identity, particularly in the Northeast. Kelp and seaweed cultivation are emerging as both food and industrial inputs (fertilizer, animal feed, cosmetics), with Maine farms among the largest in the country.

Land-based recirculating aquaculture systems (RAS) represent a newer frontier: closed-loop facilities that raise fish in controlled environments, eliminating disease risk and reducing environmental impact. Several large RAS projects are in development or operation in Maine, positioning the state as a leader in the sustainable seafood supply chain.

Food and Agriculture

Maine is the largest producer of wild blueberries in the world. The state's cool climate and acidic soils create conditions that cultivated blueberries can't replicate, and wild blueberries command a premium in both fresh and processed markets based on their flavor and antioxidant density.

Potatoes remain a major crop, particularly in Aroostook County, which has historically been one of the top potato-producing regions in the country. Maine is also the second-largest producer of maple syrup in the United States.

Beyond traditional commodity agriculture, Maine has seen significant growth in craft food and beverage. The state's craft brewing industry has expanded rapidly, with many breweries emphasizing local ingredients. Portland's restaurant scene has become nationally recognized for its farm-to-table focus, and a growing number of Maine farmers are shifting toward specialty crops and direct-to-consumer sales models supported by strong local food culture.

Outdoor Recreation

Outdoor recreation contributes over 4.2% of Maine's economy — more than double the national average. The industry encompasses retail (gear, apparel, equipment), guide services and outfitters, hospitality (lodges, campgrounds, resorts), and the infrastructure supporting trail systems, waterways, and public lands.

Key draws include the Appalachian Trail (which terminates at Katahdin), Acadia National Park, the Downeast coast, and a network of ski resorts including Sugarloaf and Sunday River. These destinations drive substantial winter and shoulder-season tourism revenue.

The industry also has a notable manufacturing component: Maine is home to established outdoor brands and a community of smaller makers producing canoes, kayaks, skis, packs, and apparel. Gear retail and outfitters like Maine Sport Outfitters connect visitors to the equipment and expertise needed to access the state's terrain.

Frequently Asked Questions

What are the major industries in Maine?

Maine's five major industries are forest products, life sciences, marine and aquaculture, food and agriculture, and outdoor recreation. Historically the economy was built on fishing, logging, shipbuilding, and farming — those sectors remain important, but have been joined and in some cases eclipsed by newer growth industries like life sciences and aquaculture technology.

What is Maine famous for producing?

Maine is best known for lobster (about 90% of the U.S. supply), wild blueberries (the largest producer globally), maple syrup (second in the U.S.), and potatoes (historically a major Aroostook County crop). The state also has a growing reputation for premium oysters, craft beer, and specialty food products.

What is Maine the biggest producer of?

Wild blueberries. Maine's unique soil and climate conditions produce a berry that cannot be replicated by cultivated varieties, and the state dominates global production. Maine is also the second-largest U.S. producer of maple syrup.

Maine Businesses and E-Commerce

Many of Maine's strongest industries — specialty food, outdoor gear, artisan goods, seafood — are well-suited to direct-to-consumer e-commerce. First Pier is a Shopify agency based in Portland, Maine, and we work with Maine-based brands in food, outdoor, and specialty retail to build and grow online sales channels. If you're a Maine business exploring e-commerce, get in touch.