Visibuilt, a Danish biotechnology company developing biobased alternatives to conventional construction binders, has raised €3.34 million in seed funding. The round was co-led by EIFO and Unconventional Ventures, with participation from Proptechfonden and returning investor EMDFonden. The financing will support the continued development and commercialization of visiBINDER, Visibuilt’s mycelium-based binder designed for paving and infrastructure applications.
Visibuilt plans to use the capital to move its technology beyond laboratory-scale pilots and into larger production and market-validation programs with industry partners. The company will expand technical testing, refine its production design, and prepare the binder for use in real-world construction environments.
Founded by Line Kloster Pedersen and Oleksii Rebrov, Visibuilt combines biotechnology and materials science to create lower-carbon alternatives to binders such as cement and bitumen.
Binders are critical ingredients in construction materials because they hold aggregates and other components together. However, the production of conventional cement and bitumen is associated with significant carbon emissions and energy consumption.
Visibuilt is seeking to reduce those environmental effects by producing its binder from mycelium, the underground root-like structure of fungi.
The company’s technology is designed to provide the durability and performance needed for outdoor paving applications while requiring less energy to produce than conventional fossil-based or mineral-based alternatives.
Potential uses include paving stones, roads, pedestrian paths, public spaces, and other infrastructure projects where conventional binders are widely used.
The company believes its platform could help create a new category of construction materials that combine industrial performance with lower embedded carbon.
The seed funding represents an important step in Visibuilt’s transition from research and development toward commercial deployment. The company will work with industry participants to test whether visiBINDER can satisfy technical specifications, manufacturing requirements, and durability standards at greater scale.
Visibuilt has already established testing relationships with a major Danish concrete paver manufacturer and the Municipality of Copenhagen. These partnerships provide opportunities to evaluate the technology in applications that more closely resemble commercial operating conditions.
The next phase of development will involve establishing the production setup needed to manufacture larger quantities of visiBINDER. This will allow Visibuilt to conduct broader trials and determine how the technology performs across different materials, climates, production processes, and use cases.
The funding will also support the hiring of additional technical and commercial employees. The expanded team will help advance product development, coordinate industry trials, and prepare the company’s market-entry strategy.
Visibuilt’s business model is intended to align environmental benefits with commercial growth. As more of its binder is used in construction applications, the company expects to generate revenue while replacing a portion of the conventional binders that would otherwise be required.
The investors backing the round see significant opportunities for new materials capable of reducing emissions from heavy industries.
EIFO is Denmark’s state-owned investment and export financing institution. It supports Danish companies through loans, guarantees, and equity investments, with a focus on innovation, international expansion, and sustainable economic development.
Unconventional Ventures invests in early-stage technology companies addressing inefficiencies in resource-intensive industries. The firm focuses on businesses where commercial expansion is directly connected to measurable environmental benefits.
Proptechfonden invests in early-stage companies developing technology for real estate, construction, and urban development. Its investment in Visibuilt reflects the growing role of advanced materials and biotechnology within the construction technology market.
EMDFonden, an earlier Visibuilt investor, also participated in the seed round. The Danish commercial foundation supports technologies designed to reduce resource consumption and environmental impact, particularly across the energy and climate sectors.
The construction industry has become a major focus for climate technology investors because of its dependence on emissions-intensive materials. Cement production requires high-temperature industrial processes, while bitumen is derived from petroleum and is widely used in asphalt and infrastructure.
Replacing or reducing the use of these materials could help construction companies, municipalities, and infrastructure developers lower the embedded emissions associated with new projects.
However, alternative binders must demonstrate that they can meet strict requirements involving strength, durability, weather resistance, production efficiency, and cost.
Visibuilt’s upcoming validation work will therefore be important in determining whether its mycelium-based technology can be produced consistently and incorporated into existing construction manufacturing systems.
The company ultimately aims to bring visiBINDER to market as a scalable material platform for lower-carbon paving and infrastructure products.
KEY QUOTES:
“Closing this seed round is an important milestone for Visibuilt. It enables us to mature our technical platform, validate our solution at a larger scale, and take the next steps towards the market.”
Line Kloster Pedersen, CEO and Founder of Visibuilt
“Concrete and asphalt production are among the largest sources of CO₂ emissions globally. If we are to truly reduce emissions, it requires new solutions in heavy industries. Visibuilt has an approach that could become an important piece of that transition.”
Sara Sande, Managing Director, Partner and Head of Direct Thematic Venture at EIFO
“At Unconventional Ventures, we look for companies where the impact case and the commercial case are structurally identical. Visibuilt is that company. Every tonne of visiBINDER placed in a paving application displaces a tonne of fossil binder, generates royalty revenue, and reduces the embedded carbon of the infrastructure it goes into. Line has built active industrial testing relationships with Denmark’s leading concrete paver manufacturer and Copenhagen Municipality within two years of founding, without a finished production setup and without a fully derisked product. That is an unusual execution signal for a hard-tech founder at this stage, and it is why we co-led.”
Thea Messel, General Partner at Unconventional Ventures
