Spring Brook Marine Group
Spring Brook Marine Group is a family-owned marine dealership and full-service marina operator founded in 1961, selling new and pre-owned powerboats and yachts across five Great Lakes locations while providing brokerage, storage, dockage, service, parts, charters, and financing.
- Company typePrivate
- Founded1961
- HeadquartersSeneca, United States
- Headcount11–50
- GTM typeB2C
- OfferingServices
What Spring Brook Marine Group does
Spring Brook Marine Group is a family-owned marine dealership and full-service marina operator founded in 1961 by the Thorpe family in Seneca, Illinois. The company sells new powerboats ranging from 18-foot pontoons to 75-foot luxury yachts, representing premium European and American brands including Prestige Yachts, Jeanneau Powerboats, Sirena Yachts, Pardo Yachts, Cranchi Yachts, and Barletta Pontoon Boats, alongside pre-owned brokerage sales. It also provides brokerage, financing, parts, service and repair, detailing (Chicago Yacht Care), winter storage, slip rentals and the Club Spring Brook membership program, MBN luxury yacht charters, and 66 premium RV sites.
The business operates across five physical locations covering the Great Lakes region: the Seneca, Illinois headquarters on the Illinois River (225 acres, 3 protected harbors, 215 floating docks, 15,000 sq ft service shop for boats up to 75 feet), Chicago (Streeterville, with a yacht design studio), Muskegon, Michigan (co-located with Adelaide Pointe's 169-slip marina), Egg Harbor in Door County, Wisconsin, and Port Clinton, Ohio. Distribution is omnichannel: physical yachting consultants across the five sites, in-water show docks, presence at events such as the Fort Lauderdale International Boat Show, plus digital channels including Yacht World, Boat Trader, SEO, email, and social media.
The revenue model is a hybrid of one-time high-ASP transactions (new and pre-owned boat sales), recurring subscriptions and storage contracts (Club Spring Brook membership, winter dry-dock storage), and ongoing service relationships (parts, repair, Chicago Yacht Care weekly wash program, yacht charters). The customer base is a long tail of Great Lakes boating enthusiasts, with mix-segment exposure to entry-level pontoons, mid-market cruisers, and luxury yacht buyers, generating multiple revenue streams per customer across the ownership lifecycle.
Spring Brook Marine Group firmographics
Firmographics- Name
- Spring Brook Marine Group
- Legal name
- Spring Brook Marine Group
- Website
- https://springbrookmarina.com
- Company type
- Private
- Founded year
- 1961
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Spring Brook Marine Group is a family-owned marine dealership and full-service marina operator founded in 1961, selling new and pre-owned powerboats and yachts across five Great Lakes locations while providing brokerage, storage, dockage, service, parts, charters, and financing.
- Ownership category
- akta.pro rank
Spring Brook Marine Group industry classification
Industry- Product category
- Marine Dealership & Marina Services
- NAICS
- Boat Dealers (441222), Marinas (713930)
- SIC
- Ship & Boat Building & Repairing (3730)
- akta.pro primary industry
- Boat & Personal Watercraft (PWC) Retail (CRAMAIAA)
Keywords
Where Spring Brook Marine Group is headquartered
LocationHeadquarters
- HQ city
- Seneca
- HQ country
- United States
- HQ region
- North America
Offices5 records
Markets served
Spring Brook Marine Group business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Supply Chain, Infrastructure, Technology or R&D
Revenue model
- New Boat Sales: Sales of new boats including luxury yachts, powerboats, and pontoon boats from represented brands
- Pre-Owned/Brokerage Sales: Brokerage services for selling pre-owned boats, handling paperwork, licensing, registration, documentation, and titling
- Storage Services: Winter dry-dock storage including heated indoor, indoor, and outdoor options. Includes haul-out, bottom wash, and launch services.
- Marina Dockage & Membership: Slip rentals and Club Spring Brook memberships including water, electric, cable, fuel discounts, and access to amenities
- Service & Parts: Boat repair, maintenance, detailing, and parts sales
- Yacht Charters: MBN luxury yacht charters in Chicago on Lake Michigan
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | New and pre-owned boats for sale |
| Unit Pricing | Annual | Heated Indoor Storage |
| Unit Pricing | Annual | Indoor Storage |
| Unit Pricing | Annual | Outdoor Storage |
| Unit Pricing | Annual | Trailerable Boats Under 24 Feet |
| Subscription | Monthly | Club Spring Brook Membership |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels6 records
Spring Brook Marine Group product offering
Product offeringCore offering
Spring Brook Marine Group is a family-owned marine dealership and full-service marina operating across five Great Lakes locations (Seneca IL, Chicago IL, Muskegon MI, Door County WI, Port Clinton OH). The company sells new powerboats and luxury yachts from premium brands including Prestige Yachts, Jeanneau, Sirena, Pardo, Cranchi, and Barletta, alongside pre-owned brokerage sales. It also operates a 225-acre Seneca headquarters marina with 215 floating docks and 3 protected harbors offering seasonal dockage, indoor and outdoor storage, parts, service and repair, RV sites, yacht charters (MBN), and Chicago Yacht Care detailing services.
Product overview
Spring Brook Marine Group is a family-owned marine dealership and service organization founded in 1961, operating as a single unified business offering boat sales, marina services, and marine maintenance across five locations in the Midwest (Seneca IL, Chicago IL, Muskegon MI, Door County WI, Port Clinton OH). The company represents six primary boat brands—Prestige Yachts (French luxury motor yachts 35-75 ft), Jeanneau Powerboats (French cruisers), Sirena Yachts (Turkish expedition yachts), Pardo Yachts (Italian luxury), Cranchi Yachts (Italian heritage), and Barletta Pontoon Boats (American)—alongside pre-owned brokerage sales, marina dockage and storage at their Seneca headquarters (225 acres, 215 slips, 3 harbors), RV sites, parts and service departments, Chicago Yacht Care detailing services, yacht charters (via MBN), and financing assistance. The product portfolio spans powerboats from 18' pontoons to 75' luxury yachts, with complementary marina operations, storage, and concierge services supporting the full boat ownership lifecycle.
Differentiator
Problem solved
Functional benefit
Products and services
- Prestige Yachts French luxury motor yachts ranging from 35 to 75 feet, featuring single-level design with 360-degree panoramic views, private owner's suite, and Pod propulsion systems. Over 2,500 Prestige yachts have been built, representing 30 years of boatbuilding heritage from the Jeanneau shipyard. Sold to Great Lakes boating consumers seeking premium motor yachts.
Companies that use Spring Brook Marine Group
Customer profileNamed customers3 records
Segments4 records
Ideal customer profiles3 records
Spring Brook Marine Group technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Spring Brook Marine Group partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core, major and minor.
- Adelaide PointecoreSpring Brook Marine Group's Muskegon office is located within Adelaide Pointe, Muskegon's only full-service marina. The marina features 169 wet slips accommodating vessels from 40' to 80', premium dockside amenities, secure facilities, and convenient access to both Lake Muskegon and Lake Michigan.
- Yacht WorldmajorAdvertising partner for boat listings through Yacht World's network of boating websites, providing unprecedented level of visibility and access to potential buyers.
- Boat TradermajorAdvertising partner for boat listings through Boat Trader's network, extending marketing reach to boaters searching for vessels.
- The 252 SenecaminorOn-site restaurant at Seneca location offering waterfront dining for marina visitors and members.
Scale indicators10 records
Recent moves8 records
Expansion highlights5 records
Spring Brook Marine Group competitors and assessment
Company assessmentBroad incumbents
- Suntex Marinas: Top-tier US marina owner-operator with a national portfolio of recreational boating facilities. Overlaps with Spring Brook on marina services (dockage, storage, fuel) but operates purely on the marina side without retail boat sales.
- Safe Harbor Marinas: Largest US marina operator with 130+ locations nationwide, owned by Sun Communities. Comparable as a marina/dockage and storage operator but does not compete in boat retail; instead, it is a potential upstream/downstream partner or competitor for marina members and storage customers.
- OneWater Marine: Public, multi-brand boat retailer with significant presence in the Southeast and growing dealer network. Competes with Spring Brook in multi-brand premium boat retail and marina operations, but operates at much greater scale and on different coasts.
- MarineMax: Largest publicly traded recreational boat dealer in the US with national footprint across multiple coasts and inland markets. Comparable as a multi-brand boat retailer with F&I, brokerage, service, and storage capabilities, but vastly larger scale and broader geographic reach than Spring Brook's Midwest focus.
Direct peers
- Jefferson Beach Yacht Sales: Established Great Lakes boat dealer with locations in Michigan representing premium brands including Sea Ray, Azimut, and Tiara. Closely comparable to Spring Brook on multi-brand premium retail and brokerage in the Midwest freshwater boating market.
- Galati Yacht Sales: Family-owned luxury yacht dealer group representing premium brands (Viking, Princess, Pursuit) with multiple Florida locations and brokerage. Most directly comparable to Spring Brook in business model—multi-brand premium yacht dealer with full-service marina and brokerage—but concentrated in Florida.
- Walstrom Marine: Long-standing (est. 1946) multi-location boat dealer and marina operator in Northern Michigan with new/pre-owned sales, storage, and service. Closely matches Spring Brook on family-owned Midwest marina-dealer hybrid model serving Great Lakes boaters.
- Skipper Bud's: Multi-location Great Lakes boat dealer with marinas across Wisconsin, Illinois, Michigan, and Florida. Directly competes with Spring Brook in overlapping premium brand retail (e.g., Sea Ray, Carver) and full-service marina operations in the Midwest.
Others
- Brunswick Corporation: Boat OEM (Sea Ray, Boston Whaler, Mercury) and marine technology conglomerate. Comparable through Brunswick's dealer-network dependent business model and overlapping end customers; not a direct competitor to Spring Brook's dealership, but controls important brands Spring Brook's peers sell.
Regional players
- South Florida Yachts: Premium yacht dealership in South Florida representing brands like Princess and Prestige. Comparable in multi-brand premium luxury yacht retail and brokerage but operates exclusively in a different (warmer-weather) regional market than Spring Brook.
Market position
Strengths1 record
Weaknesses1 record
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
Spring Brook Marine Group social profiles
Digital presenceSpring Brook Marine Group financial estimates
Financial estimateRevenue estimate
Valuation estimate
Spring Brook Marine Group leadership team
Management profileNumber of profiles
Profiles21 records
Spring Brook Marine Group funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Spring Brook Marine Group M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Spring Brook Marine Group
What does Spring Brook Marine Group do?
Spring Brook Marine Group is a family-owned marine dealership and full-service marina operating across five Great Lakes locations (Seneca IL, Chicago IL, Muskegon MI, Door County WI, Port Clinton OH). The company sells new powerboats and luxury yachts from premium brands including Prestige Yachts, Jeanneau, Sirena, Pardo, Cranchi, and Barletta, alongside pre-owned brokerage sales. It also operates a 225-acre Seneca headquarters marina with 215 floating docks and 3 protected harbors offering seasonal dockage, indoor and outdoor storage, parts, service and repair, RV sites, yacht charters (MBN), and Chicago Yacht Care detailing services.
Is Spring Brook Marine Group a public or private company?
Spring Brook Marine Group is a private company. It is classified as family owned and is currently operating.
When was Spring Brook Marine Group founded?
Spring Brook Marine Group was founded in 1961. It employs 11 to 50 people.
Where is Spring Brook Marine Group based?
Spring Brook Marine Group is headquartered in Seneca, United States, in the North America region.
How does Spring Brook Marine Group make money?
Six revenue lines are on record. New Boat Sales are the primary driver. The others are pre-Owned/Brokerage Sales, storage Services, marina Dockage & Membership, service & Parts and yacht Charters.
Who are Spring Brook Marine Group's main competitors?
Broad incumbents on record are Suntex Marinas, Safe Harbor Marinas, OneWater Marine and MarineMax. Direct peers are Jefferson Beach Yacht Sales, Galati Yacht Sales, Walstrom Marine and Skipper Bud's. Brunswick Corporation is listed as an others. South Florida Yachts is listed as a regional player.
Does Spring Brook Marine Group have an API?
No public API is recorded for Spring Brook Marine Group.
What industry is Spring Brook Marine Group in?
Spring Brook Marine Group's product category is Marine Dealership & Marina Services. Its primary akta.pro industry code is CRAMAIAA, Boat & Personal Watercraft (PWC) Retail. Its NAICS code is 441222 and its SIC code is 3730.