Maine-based boatbuilder Lyman-Morse has begun construction on a new 15,000-sq.-ft. facility in Thomaston, Maine, expanding the company’s advanced manufacturing capabilities with a dedicated composites fabrication and assembly center.

The new Advanced Composites Center will become the third building on Lyman-Morse’s Elltee Circle campus, joining the company’s workboat manufacturing division and its technology facility, which houses CNC machining and metal additive manufacturing operations.

According to the company, the expansion is intended to position Lyman-Morse as a fully integrated manufacturing partner capable of supporting marine, industrial, defense, and specialty fabrication projects across multiple materials and disciplines.

The new facility will support composite fabrication, rapid prototyping, structural component manufacturing, custom-engineered assemblies, and stainless-steel additive manufacturing using SS316L 3D printing technology.

The clear-span building is being outfitted with radiant-floor heating for climate-controlled composite construction, along with integrated compressed air systems, vacuum pumps, IT infrastructure, and two 5-ton overhead cranes designed to handle large structures during fabrication and assembly. Lyman-Morse said the building will also include a renewable energy system as part of the company’s sustainability efforts.

“This expansion is about giving our team the space and infrastructure they need to execute at the highest level,” said Samir Gupta, manager of Lyman-Morse’s Advanced Manufacturing division. “This new building allows us to take on larger, more complex projects with greater efficiency.”

The project received support through the Maine Technology Institute’s Maine Technology Asset Fund (MTAF3.0), a state program focused on growing Maine’s innovation economy. The facility is expected to be completed in summer 2026 and will be ITAR compliant.

Lyman-Morse said the expanded campus will combine composite fabrication, metal manufacturing, and additive manufacturing operations into a single advanced manufacturing hub.

The company’s existing technologies facility includes 3- and 5-axis CNC machining operations, an EOS M290 metal additive manufacturing system, workforce development programs, and ISO9001:2015 certification. Its workboats division builds aluminum workboats, landing craft, and emergency response vessels for commercial and government customers, while also providing aluminum, stainless steel, and carbon steel fabrication and coatings services.

“This project is about building capability for the long-term,” said Drew Lyman, president of Lyman-Morse. “We’re creating a facility that not only supports our current work but positions us for the next generation of manufacturing challenges.”