APPLETON MARINE INC

Appleton Marine Inc. specializes in the design, manufacturing, and maintenance of heavy-duty industrial lifting and marine systems, with deep expertise in overhead traveling cranes, hoists, and monorail systems. The company delivers critical repair and replacement components for military and coast guard vessels, including cargo crane parts, fluid power cylinders, and actuator systems, often under stringent maritime and defense specifications. Their technical capabilities extend to industrial valve fabrication, marine deck equipment, and precision fabricated metal components used in high-stress environments. With a focus on mission-critical reliability, Appleton Marine provides engineered solutions for harsh operational conditions, combining machining, welding, and systems integration to support naval and coast guard asset readiness. The contractor maintains a consistent presence with the Department of Defense and the Department of Homeland Security, primarily supporting naval vessel maintenance, repair, and modernization programs. Work includes component-level servicing of shipboard crane systems, fluid power assemblies, and deck machinery essential for cargo handling and vessel operations. These agencies rely on Appleton Marine for rapid turnaround on mission-essential parts, often under time-sensitive operational demands. Industry focus centers on NAICS 333923 (overhead crane systems) and 336611 (shipbuilding and repair), with complementary work in fluid power actuation, industrial valve manufacturing, and fabricated metal components. The company occupies a niche as a specialized supplier to the U.S. maritime defense sector, providing custom-engineered hardware where standard commercial parts are inadequate. Appleton Marine Inc. is a small, privately held business based in Appleton, Wisconsin, with no federal certifications on record. Its geographic footprint is limited to its Wisconsin facility, but its market positioning is national, serving federal maritime and defense installations through direct contract awards. The company’s reputation rests on precision fabrication, rapid response, and technical adaptability in complex naval environments.