The Luxembourg deeptech that survived a brutal market crisis is now EBITDA positive, freshly funded, and gunning for European leadership in green construction.
In the construction industry, most startups that bet on deep technology and long capital cycles don’t make it through a real estate downturn. LEKO Labs did. Founded in Luxembourg in 2017 by François Cordier, the company spent nearly a decade building a world-first: an industrialised insulated timber superstructure system combining algorithmic design, robotic production, and off-site manufacturing to deliver low-carbon buildings at scale. The numbers speak for themselves — €30 million raised, one million hours of engineering, nine patents, and approximately 500 homes delivered across the Benelux.
But the headline isn’t the raise. It’s the trajectory behind it.
After years of heavy investment and a painful restructuring as the broader construction sector hit a wall, LEKO Labs emerged in 2025 with something rare for a deeptech in that environment: a positive EBITDA of €0.7 million. Proof of concept for the entire industrial model. “We are not raising to secure a runway, but to accelerate a model that has proven its industrial viability,” says François Cordier, Founder and CEO of LEKO Labs.
The new round, closed with historical shareholders, is an intermediate round ahead of a Series B targeted for late 2026 or early 2027. “Signing programmes of several tens of thousands of square metres requires significant growth capital — it is this scaling phase that naturally led our historical investors to renew their confidence,” adds Gabriel Florea, CFO of LEKO Labs.
Investors who stayed the course aren’t surprised. “What particularly stood out to us was the team’s discipline and ability to execute. LEKO Labs has stayed the course and demonstrated the relevance of its business model. This combination of resilience and commercial traction is what led us to renew our support for the company,” says Keith O’Donnell, historical investor in LEKO Labs.
The macro tailwinds are equally compelling: Europe faces a simultaneous housing crisis and carbon imperative that LEKO Labs’ platform is built to solve. “LEKO Labs demonstrates that it is possible to act on both fronts through an industrial and technological approach developed in Europe,” adds Frédéric Van den Weghe, Managing Partner at AMAVI Capital.
France, the DACH region, and the Nordic countries are the next targets — each chosen for structural reasons ranging from regulatory pull to timber culture. A network of licensed “Robofactories” deployed close to construction sites will power the scale-up. Nearly ten years in, LEKO Labs is no longer a bet. It’s a functioning industrial platform, profitable, backed, and pointed at European leadership. The Series B will tell the rest of the story.
