Marinette Marine Corp

ShipbuildingUnited States201-500 Employees

Marinette Marine Corp is a U.S.-based shipbuilder that designs and constructs vessels for naval programs, including work tied to the U.S. Navy. The company collaborates with system integrators and external suppliers to deliver production-ready ships and major subsystems. Its activity includes involvement in shipboard integration and subsystem production for U.S. Navy frigate programs through industry partnerships.

Based in Marinette, Wisconsin, the company is a midsize contractor serving the U.S. shipbuilding sector. It has partnered with firms such as L3Harris, Timken, and Philadelphia Gear to supply key components for its vessels. In December 2025, reports noted a reduction in its workforce after the Navy canceled a ship order, reflecting how program changes can affect staffing.

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