Visibuilt, a biotechnology company based in Søborg, Denmark, has raised €3.3 million in seed funding to advance its mycelium-based binder technology for the construction and infrastructure sectors.

The round was co-led by EIFO and Unconventional Ventures, with participation from Proptechfonden and follow-on backing from existing investor EMDFonden.

Visibuilt is developing a biobased binder as a lower-carbon alternative to conventional materials such as bitumen and cement, which are widely used across construction and infrastructure but are also associated with high emissions.

The new funding will help the company move beyond laboratory-scale pilots and toward market validation. It plans to run larger-scale production design tests with industry partners, expand testing and validation work, establish production set-up for larger trials, and add technical and commercial hires.