Structural materials manufacturer Supersede has raised $13 million in a Series A funding round led by AP Ventures to expand production and enter the construction market, building on the use of its products in boatbuilding and recreational vehicle manufacturing.
The US-based company makes structural sheathing designed to replace plywood and oriented strand board (OSB).
Supersede says its materials resist moisture and warping, contain no CCAs or formaldehyde and can be installed using the same methods as conventional sheathing.
Supersede launched its Marine Board in October 2024 with customers including the Boatbuilder Thunder Jet which uses the material in structural components, while Coachmen RV has adopted it for the floor structure of its Catalina travel trailers.
American manufacturing
“We started in boats and RVs, where materials face constant moisture, movement and stress,” said Sean Petterson, Supersede chief executive and co-founder.
“Leading manufacturers are putting our products to work, and this funding allows us to scale American manufacturing and bring that same performance to the places people live and work.”
The company plans to extend its materials platform into residential and commercial construction, modular housing and specialty vehicles.
“Supersede has shown that recycled industrial plastic can become a reliable structural material at manufacturing scale, and the team has built that capability with impressive speed,” said Kevin Eggers, founding partner at AP Ventures, the London-headquartered venture capital firm leading the round.
Second manufacturing site
The investment follows a $10 million seed round in July 2025, which included Closed Loop Partners, a major US building products distributor and angel groups.
Closed Loop Partners subsequently provided a $5 million catalytic loan in May 2026.
In October 2026, Supersede opened a 100,000-square-foot production facility in Bristol, Indiana, to meet demand from RV manufacturers.
Located in Elkhart County, the plant brings production closer to its RV customers and is the company’s second manufacturing site, joining its original Phoenix facility.
