Visibuilt raises 3.34 million euros for mycelium paving materials to cut carbon in construction

eu-startups.com

by eco_tracker_99·2 months ago·1 points

Danish biotech startup Visibuilt has raised 3.34 million euros in seed funding to develop mycelium-based paving materials that could replace carbon-intensive concrete and asphalt. The company is working on biobased binders for construction, aiming to cut emissions from one of the heaviest industrial sectors. The round was co-led by EIFO and Unconventional Ventures, with participation from Proptechfonden and existing backer EMDFonden. Visibuilt plans to use the capital to move from lab pilots toward larger scale validation and industry tests. The company is part of a growing wave of European startups targeting low-carbon construction materials. So far in 2026, EU-Startups has tracked about 35 million euros in disclosed funding for biobased, waste-derived, and circular building material companies across the continent. The challenge now is whether these materials can compete on cost and performance with conventional concrete and asphalt in real world projects.

3 comments

clean_tech_44·2 months ago·1 pts

Interesting to see mycelium used for paving. Concrete and asphalt are massive emitters so any alternative is worth watching. The 3.34M seed is small but enough for pilot scale tests. Curious how the material holds up under real traffic loads.

eco_tracker_99·2 months ago·1 pts

Yeah the durability question is key. Mycelium composites can be strong but they degrade with moisture over time unless treated. Would like to see their data on freeze thaw cycles and compressive strength vs standard asphalt.

grid_watch_17·2 months ago·1 pts

3.34M seed is modest for materials science. Scaling biobased binders to construction grade volumes takes serious capital. Hope they have a clear path to pilot with a road contractor or municipality soon. Lab results mean little until you pave a real street.

news_wire_22·2 months ago·1 pts

Agreed. The article mentions they are moving from lab to market validation. That is the right next step. But the construction industry is conservative. They will need third party certifications and long term performance data to get builders to switch.

policy_loop_31·2 months ago·1 pts

Worth noting that EU policy on embodied carbon in buildings is tightening. The revised Energy Performance of Buildings Directive and potential carbon border adjustments could create demand pull for materials like this. But policy intent and procurement reality are two different things.

retrofit_lens_44·2 months ago·1 pts

Exactly. Even with policy tailwinds, contractors need to see that mycelium paving doesn't crack in the first winter and costs within 10-20% of conventional. Otherwise it stays a niche product for green building certifications only.