Tree Composites

HardwareDelft, NetherlandsFounded 2020· One of 1734 Hardware companies tracked by AMPulse

Innovative composite joints for offshore wind foundations that provide a durable, efficient, and cost-effective alternative to traditional steel welding.

CEO / Founder: Maxim Segeren
Team Size: 11-50
Stage: Active
Total Funding: $5.9M
Latest Round: Crowdfunding
Key Investors: RVO (Netherlands Enterprise Agency)

Technology & Products

Key Products

Innovative composite joints (TC-joints) for offshore wind foundations, offering a durable, efficient, and cost-effective alternative to traditional steel welding.

Technological Advantage

Advanced composite materials reduce production time, material usage, and overall costs compared to traditional steel welding.

Differentiation

Value Proposition

Offers composite joints that reduce lead-times, costs, and carbon footprints while enabling deeper water installations with enhanced durability.

How They Differentiate

Specialized composite technology tailored for the rigors of deepwater offshore wind foundations, offering superior durability and faster, more efficient assembly.

Market & Competition

Target Customers

Offshore wind park developers, fabricators, and operators

Industry Verticals

Renewable Energy, Offshore Wind, Construction

Competitors

Perseus Materials; Strong by Form

Growth & Milestones

Growth Metrics

The company has grown into a team of 25 experts, received a €5.5 million HER+ grant from RVO for the Wrapnode-II project, and opened a new manufacturing location at Rotterdamseweg in Delft.

Major Milestones

Winner of JEC Composites Startup Booster 2025, Finalist in JEC Composites Startup Booster 2025, DNV feasibility endorsement for composite joints, Launch of the WrapNode-I project in collaboration with TU Delft and industry partners

Notable Customers

Buccaneer Delft, HSM Offshore Energy BV, JERA Nex bp, Vattenfall, Shell, ArcelorMittal, AOC, Enersea BV - Offshore Energy Engineering & Consultancy, Siemens Energy, Delft University of Technology, GROW offshore wind, Netherlands Enterprise Agency, Parkwind, Smulders, Siemens Gamesa, Versteden B.V.

https://www.treecomposites.com

Funding rounds

Crowdfunding€663K2025-12Source: Tree Composites LinkedIn; Eyevestor
Grant€5.5M2024-07Lead: RVO (Netherlands Enterprise Agency) · Source: Tree Composites website, Windpowernl, RVO

Why this company matters

AMPulse analysis, not a company disclosure

Tree Composites addresses a structural bottleneck in offshore wind: the welding of steel foundation joints. Its TC-joints use advanced composite materials to replace traditional welded steel connections, reducing production time, material usage, and overall costs while enabling installations in deeper water. The company positions itself as a specialist in high-performance composite solutions for the renewable energy sector, recognized as a leading innovator in offshore wind for 2024.

The core product is the TC-joint, a composite connection engineered for the fatigue and corrosion demands of deepwater environments. The technology received a statement of feasibility from Det Norske Veritas in 2020, validating its structural integrity. Tree Composites has since launched the WrapNode-I project with TU Delft and industry partners, and secured a €5.5 million HER+ grant from the Netherlands Enterprise Agency for the WrapNode-II project, which supports scaling production at a new manufacturing location in Delft.

Target customers include offshore wind park developers, fabricators, and operators. Named clients and partners include Buccaneer Delft, HSM Offshore Energy BV, JERA Nex bp, Vattenfall, Shell, ArcelorMittal, Siemens Energy, Siemens Gamesa, Smulders, and Enersea BV. The company also collaborates with TU Delft, DNV, and the GROW offshore wind consortium. Competitors include Perseus Materials and Strong by Form, though Tree Composites differentiates through its specialized composite joint technology tailored for deepwater wind foundations.

The company's strategic moat rests on its DNV-feasibility endorsement, project-based partnerships with major offshore wind players, and a growing team of 25 experts. An open question is whether composite joints can achieve the cost parity and certification breadth needed to displace steel welding at scale across the offshore wind industry, particularly as turbine sizes and water depths increase.