Larsen Marine

What Larsen Marine does

Larsen Marine is a full-service marina operating from a 26-acre facility at 625 E Sea Horse Drive in Waukegan, Illinois, on the western shore of Lake Michigan midway between Chicago and Milwaukee. The company provides seasonal boat slip rentals in a deep-water harbor accommodating vessels with drafts up to 13 ft, alongside indoor and outdoor storage options (winter storage, dry stack, mast, trailer, and summer boat parking). It also operates a ship store selling marine parts, hardware, and accessories, and runs a full repair and maintenance operation covering mechanical, electrical, fiberglass, painting, carpentry, rigging, sail services, and commissioning/decommissioning. Service capability is supported by 3 Marine Travel Lifts, 6 forklifts, 3 manlifts, a tower crane, and OEM certifications across Mercruiser, Yamaha, Yanmar, Fischer Panda, and Volvo Penta, plus authorized Selden Service Center and Raymarine installer status.

Revenue is generated across six streams: recurring slip rentals and storage subscriptions, transactional repair and maintenance services, ship-store hardware sales, yacht and pre-owned boat sales (including Jeanneau representation via a Manitowoc Marina partnership), and event-driven race logistics (Official Logistics Partner of the 2025 Race to Mackinac). The company is owned and operated by TopSide Marinas (MEP Marinas OpCo LLC), having transitioned from three generations of family ownership, and is part of a multi-location marina platform that also runs a 24-month Marine Technician Development Program. Go-to-market is primarily direct at the Waukegan facility, supplemented by a referral program, email newsletter, social media presence, and a separate yacht-sales e-commerce site.

Name

Larsen Marine

Legal name

LARSEN MARINE TS LLC

Website

https://larsenmarine.com

Company type

Private

Founded year

1954

Operating status

Operating

Headcount range

11–50 employees

Short description

Larsen Marine is a full-service Lake Michigan marina in Waukegan, Illinois offering deep-water slips, indoor/outdoor storage, OEM-certified repair, a ship store, yacht sales, and race logistics to recreational and racing sailboat owners.

Ownership category

akta.pro rank

Headquarters

HQ city

Waukegan

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Infrastructure, Operations, Supply Chain, Marketing or Sales

Revenue model

1. Boat Slip Rentals: Deep-water harbor slips available for seasonal rental, located midway between Chicago and Milwaukee on Lake Michigan.
2. Boat Storage Services: Indoor and outdoor storage including winter storage, dry stack, mast storage, trailer storage, and summer boat parking.
3. Marine Service and Repair: Full repair services including mechanical, electrical, fiberglass, painting, carpentry, rigging, sail services, and commissioning/decommissioning.
4. Ship Store and Parts Sales: Extensive selection of marine engine parts, hardware, repair kits, marine grade wire, stainless fasteners, and marine accessories.
5. Yacht Sales: New boat sales through Manitowoc Marina partnership representing Jeanneau boats; also operates Larsen Marine Yacht Sales and pre-owned boat sales.
6. Race to Mackinac Logistics: Logistics partner services for the Race to Mackinac including vessel offloading, keel installation, mast stepping, rigging, and launch services.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels4 records

Core offering

Larsen Marine operates a 26-acre full-service marina on Lake Michigan providing seasonal boat slip rentals in a deep-water harbor, indoor and outdoor boat storage, and comprehensive marine repair and maintenance services. The facility also houses a ship store for parts and supplies, a yacht sales operation (new and pre-owned), and serves as the Official Logistics Partner of the 2025 Race to Mackinac, providing vessel offloading, rigging, and launch services.

Product overview

Larsen Marine is a full-service marina operating as a single-location, full-service marina and boat dealership on Lake Michigan. The core offering combines boat slip rentals in a protected deep-water harbor with comprehensive storage services (winter, mast, summer parking, dry stack, trailer), and a full suite of marine repair and maintenance services (mechanical, paint & fiberglass, carpentry, electronics, rigging, sail services). The company also operates a Ship Store for parts and supplies, provides commissioning and decommissioning services, serves as a certified Selden Service Center and Leisure Furl Dealer, acts as an authorized Jeanneau boat dealer, and handles yacht sales including pre-owned boats. The marina is the Official Logistics Partner of the 2025 Race to Mackinac, offering specialized racing preparation services including vessel offloading, keel installation, mast stepping, and rigging. All services are delivered under the TopSide Marinas corporate umbrella.

Differentiator

Problem solved

Functional benefit

Products and services

• Boat Slips Seasonal deep-water harbor slip rentals located midway between Chicago and Milwaukee on Lake Michigan, featuring protected deep-draft harbor, parking near every slip, hands-free pump-out service, and on-site ship store and service department access.
• Boat Storage Comprehensive boat storage services including winter storage, mast storage, summer boat parking, dry stack storage, and trailer storage, with indoor and outdoor options available at the Waukegan facility.
• Boat Service & Maintenance Full-service boat repair and maintenance covering mechanical, paint and fiberglass, carpentry, electronics, rigging, and sail services, performed by OEM-certified technicians with a mobile service fleet available for off-site repairs.
• Commissioning & Decommissioning Seasonal boat commissioning and decommissioning services to prepare vessels for launch and winterization, including systems checks, rigging, and storage transition.
• Ship Store On-site marine retail store offering an extensive selection of engine products, sailing hardware, paint and refinishing products, marine-grade wire, stainless fasteners, marine detailing products, and safety equipment.
• Yacht Sales New and pre-owned yacht and boat sales, including Jeanneau boat representation at the Waukegan location through Manitowoc Marina partnership and pre-owned boats listed via larsenmarineyachtsales.com.
• Race to Mackinac Logistics Services Specialized racing sailboat logistics offering vessel offloading using 3 Marine Travel Lifts and heavy equipment, keel installation, mast stepping, rigging, and launch services from a 26-acre facility with deep-water harbor.

Quantifiable outcome

• Deep water harbor accommodating vessels with draft up to 13 ft
• +1 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Five partnerships are on record, tiered core and flagship.

• Manitowoc MarinacoreChannel Partner/ Reseller/ Distributor · 17 November 2025Partnership enables Manitowoc Marina to represent Jeanneau boats at Larsen Marine's Waukegan location, expanding the dealership network in the Chicago and Lake Michigan area. New models arriving in 2026.
• SeldencoreTechnology or Integration · 1 January 2025Larsen Marine is an authorized Selden Service Center and stocks a wide selection of rigging products from Selden and other industry-leading manufacturers.
• TopSide MarinasflagshipOthers · 1 January 2025Proudly owned and operated by TopSide Marinas (MEP Marinas OpCo LLC). Larsen Marine is part of the TopSide Marinas family which operates multiple marina locations.
• Race to Mackinac (Organizers)flagshipStrategic or Co-development Partner · 1 January 2025Official Logistics Partner of the 2025 Race to Mackinac. Provides vessel offloading, keel installation, mast stepping, rigging, launch, and electronics services for participating racing sailboats.
• RaymarinecoreTechnology or Integration · 1 January 2025Certified installation of Raymarine electronics including Axiom systems. Company has installed Raymarine electronics on multiple sailboats with 100% reliability.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Safe Harbor Marinas: Largest U.S. recreational marina operator with a national portfolio including Great Lakes locations. Operates the same slip, storage, and marine service model as Larsen Marine but with substantially broader geographic reach.
• IGY Marinas: International marina operator managing premium yacht marinas globally. Comparable slip and service operating model, though at luxury destination scale, competing for premium boating customers and capital.
• Suntex Marinas: Large U.S. marina operator owning a portfolio of recreational marinas nationwide. Comparable operating model in slip rentals, storage, and boat services, but at much greater geographic scale and capital backing.
• MarineMax: Largest recreational boat retailer in the U.S., with dealership and service operations overlapping Larsen Marine's yacht sales and boat servicing business. Competes for new-boat buyers and provides similar post-sale service.
• Brunswick Corporation: Diversified marine manufacturer and service platform (Mercury Marine, etc.) with a BoatTech service network. Operates in adjacent segments including OEM propulsion, parts, and marine services that touch Larsen Marine's certified service offerings.
• West Marine: Largest U.S. retailer of marine parts and accessories, overlapping Larsen Marine's ship store offering. Competes for marine parts, hardware, and accessory spend from the same DIY and service-channel boating customers.

Direct peers

• Manitowoc Marina: Wisconsin-based full-service marina that partners with Larsen Marine to represent Jeanneau boats at the Waukegan location. Comparable marina operator with new/used boat sales, slips, and service on Lake Michigan, overlapping customer base and product mix.
• Hinckley Yacht Services: Premium yacht services company offering storage, maintenance, and brokerage. Comparable high-end service model with full-service yards, though primarily coastal, sharing a similar premium service positioning.
• North Point Marina: Illinois' largest marina, located in Winthrop Harbor on Lake Michigan just south of Waukegan. Operates slips, storage, and fuel services for recreational boaters, directly competing for Lake Michigan slip and storage customers.
• Galati Yacht Sales: Multi-location yacht dealer and brokerage with full-service operations. Overlaps with Larsen Marine's yacht sales and brokerage business, targeting similar premium recreational boating customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/LarsenMarineService
• Facebookfacebook.com/Larsen-Marine-Service-Inc-LMS-395433683823690
• LinkedInlinkedin.com/company/larsen-marine-service-inc
• Instagraminstagram.com/larsenmarine
• Xx.com/LarsenMarine

Revenue estimate

Valuation estimate

Number of profiles

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 Larsen Marine