MI

Marmen Inc.

Trois-Rivières, Quebec, Canada

Naval SystemsDual-use
Founded 19721001-5000 employeesContract Manufacturer, Subsystem ManufacturerSupplies Defense Industry
Profile last updated: April 11, 2026

About

Founded in 1972, Marmen Inc. is a defense contract manufacturer based in Trois-Rivières, Canada working in naval systems.

Marmen Inc. is a family-run manufacturing company founded in 1972 in Trois-Rivières, Quebec. It operates plants in Canada and the United States, including Trois-Rivières, Matane and Brandon, South Dakota. The company provides high-precision machining, metal fabrication, welding, surface treatment, mechanical and electrical assembly, and design and engineering services as a manufacturing partner for major OEMs. Its core business is the manufacture of wind towers, and it also produces components for hydroelectric, steam and gas turbine, oil and gas, mining and steel mill markets. Marmen has a space, defense and military market offering and has signed a strategic teaming agreement with TKMS to support production of 212CD submarine segments in Canada. The company states it has more than 1,000 employees.

Location

Trois-Rivières, Canada

Founded

1972

Employees

1001-5000

Company type

Private company

Focus areas

wind towersprecision machiningmetal fabricationweldingmechanical assemblysurface treatmentOEM manufacturingsubmarine segmentshydroelectricwind energy

Languages

ENFR

Products & capabilities

Defense domains

Naval Systems

Supply-chain role

Contract ManufacturerSubsystem Manufacturer

What they offer

Manufacturing ServicesEngineering ServicesHardware

Markets

Also sells to civilian markets

Products

Wind tower fabrication

Wind tower sections

Fabrication and assembly of wind turbine towers for the wind energy market.

212CD submarine segments

Submarine hull segments

Production of submarine segments in Canada under a strategic teaming agreement with TKMS.

Hydro Kaplan turbine components

Hydroelectric turbine parts

Machined components for hydroelectric Kaplan turbines.

Hydro stator frame

Hydroelectric generator parts

Fabricated stator frames for hydroelectric generators.

End users

Defense Industry

Standards, platforms & customers

Platforms & programmes

212CD submarine

Named customers

TKMS