JEC presents Composites Startup Booster 2025 winners

JEC 2025 competition finalists. Source | JEC Group

This week at JEC World 2025 in Paris, France, three winners were selected as JEC Composites Startup Booster 2025 winners. A total of 20 finalists pitched their projects before a designated expert jury during the show on March 4, featuring entrepreneurs, startups and university spin-offs. The winners were recognized at an award ceremony on March 5.

Put on every year by JEC Group (Paris), the Startup Booster contest gives the opportunity for the international composites audience to gain inspiration, network and foster business collaboration.

The 2025 winners represent the competition’s two categories and a prize: Products & Materials; Process, Manufacturing & Equipment; and the Sustainability Prize:

JEC Composites Startup Booster winners.

Category: “Products & Materials”: Tree Composites (Netherlands): Tree Composites aims to accelerate the energy transition through the innovative use of composite materials for joints in offshore wind foundations. As offshore wind parks move into deeper waters with larger turbines, traditional steel welding methods fall short. The company’s patented composite joint technology replaces welded steel connections, reportedly offering more than 5,000 times longer lifetimes, reducing steel use by 50%, cutting CO₂ emissions by 35% and doubling production efficiency. After an extensive testing campaign with well-known partners, Tree Composites is preparing for scale-up.

Category: “Process, Manufacturing & Equipment”: Perseus Materials (U.S.): The design of composites fabrication methods and equipment are constrained by the modes and kinetics of resin cure. Novel methods require resins with novel curing behavior. Perseus develops a new class of continuous molding with the speed of pultrusion and the adaptability of 3D printing, enabled by proprietary resins and the company’s distinctive curing behavior.

Sustainability Prize: Strong by Form (Spain): Strong by Form is a composite company shaping the future of wood. Drawing inspiration from nature’s optimization processes, its team has developed Woodflow, a timber composite technology that replaces concrete, steel and aluminum at a fraction of their weight and environmental impact.