MARINETTE MARINE CORPORATION

Marinette Marine Corporation specializes in the design, construction, and modernization of high-performance naval vessels and maritime systems, with deep expertise in combatant craft, guided missile frigates, and unmanned surface vehicle platforms. The company delivers end-to-end shipbuilding capabilities—from conceptual studies and detail design to full-scale construction and lifecycle support—leveraging advanced naval architecture, integrated mission systems, and ruggedized hull formulations optimized for demanding maritime environments. Their technical proficiency extends to the integration of navigation, detection, and guidance instrumentation within naval platforms, ensuring mission-critical performance in contested and austere conditions. A key differentiator is their ability to execute complex, multi-year defense programs with precision, balancing rigorous naval standards with rapid prototyping and delivery timelines. The company maintains a strong, sustained relationship with the Department of Defense, primarily supporting naval modernization initiatives including the Combatant Craft Heavy and FFG(X) frigate programs, as well as unmanned surface vehicle family systems. They also deliver specialized maritime assets to the Department of Homeland Security, focusing on closeout and funding adjustments for law enforcement and coastal patrol platforms, indicating experience in both operational and administrative phases of government vessel procurement. Marinette Marine’s primary industry focus lies in shipbuilding and repairing (NAICS 336611), with secondary expertise in nautical system manufacturing (NAICS 334511) and boat building (NAICS 336612). This positions them as a niche provider of medium- to large-scale naval platforms for defense and homeland security missions, distinguished by their capacity to manage technically complex, system-integrated vessel programs from concept to commissioning. Based in Marinette, Wisconsin, the company operates as a Tier 2 prime contractor with no federal certifications on record. Their geographic footprint is centered on the Great Lakes shipbuilding corridor, where they leverage regional industrial infrastructure and skilled maritime labor to support national security priorities.