Great Bay Marine

What Great Bay Marine does

Great Bay Marine, Inc. is a privately held marina and marine services company founded in 1956 and headquartered at 61 Beane Lane, Newington, New Hampshire. The company operates a 36-acre, year-round, full-service boating facility on the Piscataqua River and positions itself as the only year-round full-service marina on the New Hampshire Seacoast. Its physical infrastructure comprises 128 slips (accommodating vessels from 13 to 70 feet LOA), 84 moorings (including four for tall-rig sailboats), dual 35-ton travel lifts, a 120-foot floating launch dock, five steel storage buildings (one heated), and a ValvTect-branded fuel dock.

The company's product set spans slips and moorings, indoor and outdoor boat storage, a launch ramp, a fuel dock, a parts department, and a marine service department that is OEM-trained for Honda Marine, Tohatsu, Westerbeke/Universal, Beta Marine, Volvo Penta, Mercruiser, and Yanmar Diesel, with ABYC-certified electrical/electronics capability. Ancillary lines include Honda Marine outboard sales (Premier Dealer), TUG aluminum inflatable boat sales, a ship store for DIY boaters, and on-site yacht brokerage through Smith Yacht Sales. Storage and slip pricing is per linear foot or square foot on annual contracts, labor is billed hourly ($80 general, $145 skilled), fuel is sold per gallon with member discounts, and ramp access is sold as daily or season passes. The customer base is local and regional recreational boaters across New England, and the company is privately held with no disclosed institutional ownership or funding.

Name

Great Bay Marine

Legal name

Great Bay Marine, Inc.

Website

https://greatbaymarine.com

Company type

Private

Founded year

1956

Operating status

Operating

Headcount range

11–50 employees

Short description

Great Bay Marine is a 70-year-old, year-round full-service marina in Newington, NH, serving New England recreational boaters with slips, moorings, storage, fuel, engine service, parts sales, and boat brokerage on the Piscataqua River.

Ownership category

akta.pro rank

Product category

Marina Services

NAICS

Ship Building and Repairing (336611), Support Activities for Water Transportation (4883)

SIC

Ship & Boat Building & Repairing (3730)

akta.pro primary industry

Marine Outfitting & Interior Refurbishment (TLAKAKAL)

akta.pro secondary industries

Underwater Hull Inspection, Cleaning & Propeller Services (TLAKAKAJ), Piping, HVAC & Auxiliary Systems Repair (TLAKAKAH)

Keywords

• Marina services
• Boat storage
• Marine repair
• Fuel dock
• Yacht brokerage

Headquarters

HQ city

Newington

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel

Revenue model

1. Boat Storage: Year-round indoor and outdoor boat storage services. Indoor storage includes cold and heated options in five steel buildings. Outdoor storage on jack stands includes haul, bottom wash, and spring launch. Seasonal and annual contracts.
2. Marine Service & Repair: Full-service marine facility providing engine servicing, electrical/electronics, paint services (bottom paint, AWLGrip, brightwork), fiberglass services, winterizing, commissioning, and fuel polishing. OEM-trained service centers for multiple marine engine brands.
3. Marina Slips & Moorings: 128 slips accommodating 13-70 foot vessels with power (30A/50A) and fresh water. 84 moorings plus transient availability. Waitlist maintained for most of the past 5 years.
4. Fuel Sales: Fuel dock selling ValvTect Marine gasoline and diesel to members and non-members at seasonal hours. Fuel pricing includes member discounts.
5. Parts Sales: Parts department selling OEM parts for Honda, Yanmar, Volvo Penta, Mercruiser, plus paints, cleaning supplies, hardware, charts, safety gear. Same-day deliveries and special orders available.
6. Boat & Engine Sales: Sales of TUG Aluminum Hull Inflatables and Honda Marine engines. Honda Marine Premier Dealer status. On-site yacht broker (Smith Yacht Sales) for brokerage services.
7. Launch Ramp Access: Paved launch ramp with 120-foot loading dock, daily passes and season passes for boat launch access. Season passes sold out for 2026.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Great Bay Marine operates a year-round, full-service boating facility on a 36-acre site in Newington, NH, providing indoor and outdoor boat storage, 128 slips and 84 moorings, a fuel dock, a paved launch ramp with dual 35-ton travel lifts, and a marine service department offering engine servicing, painting, fiberglass work, winterization, and commissioning. The company also runs an OEM parts department, sells Honda Marine and other outboard engines, distributes TUG aluminum hull inflatables, and hosts an on-site yacht broker (Smith Yacht Sales).

Product overview

Great Bay Marine operates as a year-round, full-service marina and boating facility offering a comprehensive suite of interconnected services. The core business combines marina infrastructure (128 slips, 84 moorings, fuel dock, launch ramp) with marine services (engine repair, painting, winterizing). The product portfolio centers on slips & moorings as the anchor offering, supported by boat storage (indoor/outdoor), fuel dock operations, and marine service/maintenance departments. Additional revenue streams include engines & parts sales (carrying Honda Marine, Universal Marine, Volvo Penta brands), an onsite yacht broker (Smith Yacht Sales), and a ship store for boater supplies. TUG aluminum hull inflatables are also sold. All services are unified under one facility located six miles up the Piscataqua River in Newington, NH.

Differentiator

Problem solved

Functional benefit

Products and services

• Marina Slips & Moorings Year-round dockage and mooring rentals accommodating vessels from 13' to 70' LOA, including 128 slips with 30A/50A power and fresh water, 84 moorings, four tall-rig moorings at Hilton Park, and transient availability. A waitlist has been maintained for most of the past five years.
• Boat Storage Indoor and outdoor boat storage across 36 acres, including cold and heated indoor storage in five steel buildings, outdoor storage on jack stands with haul, bottom wash, and spring launch, plus dinghy storage and trailer-only storage options.
• Fuel Dock Seasonal fuel dock selling ValvTect Marine gasoline ($5.119/gal non-member, $5.019/gal member) and diesel ($5.229/gal non-member, $5.129/gal member), plus bait, ice, and oil, open seven days a week during the boating season.
• Marine Service & Maintenance Full-service marine department providing engine and onboard systems servicing, ABYC-certified electrical/electronics installation, bottom painting, AWLGrip and brightwork paint services, winterizing, spring commissioning, on-site fuel polishing, and fiberglass repairs, with OEM-trained service centers for Honda Marine, Tohatsu, Westerbeke/Universal, Beta Marine, Volvo Penta, MerCruiser, and Yanmar Diesel.
• Engines & Parts Sales Sales of outboard and inboard engines (Honda Marine Premier Dealer, plus Tohatsu, Beta Marine, Universal Marine, Yanmar, Volvo Penta, Westerbeke) and a parts department stocking OEM parts, MapTech charts, Racor filters, and Pettit & Interlux yacht finishes, with daily deliveries and special orders.
• Launch Ramp & Haul-Out Services Paved launch ramp with 120' floating dock available at all tides for trailerable boats up to 24' LOA, plus dual 35-ton travel lifts and a 35-ton hydraulic trailer for hauling, launching, and loading vessels up to 48' LOA. Season passes and daily passes are sold.
• Marina Ship Store On-site retail store catering to DIY boaters, offering paints, cleaning supplies, hardware, safety gear (flares, PFDs), charts, and related marine supplies.
• Smith Yacht Sales (On-Site Yacht Brokerage) Yacht brokerage service operated on-site by Capt. Jon Tregea through Smith Yacht Sales, providing brokerage for boat buyers and sellers visiting the marina.
• TUG Aluminum Hull Inflatables Sales of TUG light aluminum hull inflatable boats and RIBs (many with bow lockers) offered to marina customers on a limited-supply basis.

Segments1 record

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Ten partnerships are on record, tiered core and minor.

• Honda MarinecoreChannel Partner/ Reseller/ DistributorAuthorized Honda Marine dealer with Premier Dealer status. GBM sells Honda Marine outboard engines and has received the Honda Marine Premier Dealer award. Parts and service support for Honda Marine products with dedicated connected dealer website.
• YanmarcoreTechnology or IntegrationOEM-trained service center for Yanmar Diesel engines. GBM provides authorized service, maintenance, and parts for Yanmar diesel propulsion systems.
• Volvo PentacoreTechnology or IntegrationOEM-trained service center for Volvo Penta engines and drive systems. Authorized for service, repair, and parts for Volvo Penta marine engines.
• TohatsucoreChannel Partner/ Reseller/ DistributorAuthorized dealer for Tohatsu outboard motors. GBM carries Tohatsu engines and provides service support for Tohatsu products.
• Beta MarinecoreChannel Partner/ Reseller/ DistributorAuthorized dealer for Beta Marine diesel engines. GBM sells and services Beta Marine propulsion systems.
• MercruisercoreTechnology or IntegrationOEM-trained service center for MerCruiser sterndrive engines. Authorized for MerCruiser service, repair, and parts.
• Westerbeke/UniversalcoreTechnology or IntegrationOEM-trained service center for Westerbeke and Universal Marine engines. Authorized service and parts support for these brands.
• ValvTect MarinecoreChannel Partner/ Reseller/ DistributorValvTect Marine fuel products sold at GBM's fuel dock. ValvTect provides marine-specific gasoline and diesel fuel additives and formulations for the recreational marine market.
• Smith Yacht SalesminorChannel Partner/ Reseller/ DistributorOn-site yacht broker operating from Great Bay Marine facilities. Jon Tregea serves as the broker providing brokerage services to GBM customers and visitors.
• Lexi's LandingminorChannel Partner/ Reseller/ DistributorSeasonal restaurant operating at Great Bay Marine from Memorial Day through Labor Day, serving the marina community and boaters.

Scale indicators6 records

Recent moves7 records

Expansion highlights4 records

Direct peers

• Suntex Marina Investors (formerly Safe Harbor Marinas): Largest U.S. owner and operator of recreational marinas with over 300 properties, including New England operations. Directly comparable as a full-service marina operator combining slips, storage, fuel, and service — though at vastly greater scale.
• Kittery Point Yacht Yard: Full-service yacht yard on the Piscataqua across from Great Bay Marine, offering moorings, storage, and marine services to the same regional boating population in southern Maine/northern New Hampshire.
• Hinckley Yacht Services: New England yacht yard and brokerage network (Portsmouth, RI; Southwest Harbor, ME; others) delivering marine service, storage, and yacht sales to a comparable recreational boating customer base.
• York Harbor Marine: Full-service marina in York, ME offering slips, moorings, storage, fuel, and marine service on the same southern Maine/New Hampshire coastal corridor as Great Bay Marine.

Emerging players

• Portsmouth Boat Club: Local boating membership alternative operating in the same Piscataqua/Portsmouth market; competes with slip and mooring demand and is useful as a regional peer for new-customer-acquisition dynamics.
• Freedom Boat Club: Subscription-based boat club operating across hundreds of U.S. marinas including New England; competes with slip rentals and traditional ownership by offering fractional access at marinas like Great Bay Marine.

Regional players

• Cape Cod Marina / Edwards Boat Yard: New England full-service marina with slips, storage, fuel, and service — comparable operating model, but serving Cape Cod boaters rather than the NH Seacoast directly.
• Marina Bay: Recreational marina on the Boston Harbor waterfront offering slips, moorings, and fuel — comparable product set but operating in a different metropolitan harbor market.

Broad incumbents

• MarineMax: Largest U.S. recreational boat dealer with integrated marinas, brokerage, and service — competing at the broader category level for engine/boat sales and service revenue.
• OneWater Marine: Major U.S. recreational marine retailer and services platform with OEM partnerships (Volvo Penta, Yamaha, Mercury); comparable as a multi-brand marine service and retail aggregator.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/gbmarinenh
• Instagraminstagram.com/greatbaymarinenh
• LinkedInlinkedin.com/company/great-bay-marine-inc.

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Great Bay Marine