Visibuilt raises EUR 3.34 million to bring biobased binders closer to market

Visibuilt, a Danish biotechnology company developing biobased alternatives to conventional carbon-intensive construction binders, has secured EUR 3.34 million in seed funding co-led by EIFO and Unconventional Ventures followed by Proptechfonden and backed again by earlier investor EMDFonden.

The investment will support the next stage of the company’s development as it moves from laboratory-scale pilots towards validating the biobased binder platform in the market and larger-scale tests of production design with industry partners. The binder technology, visiBINDER, is a mycelium-based binder designed for paving and infrastructure applications.

Strong support for a new generation of construction materials

The funding round was completed with two strong leads from EIFO and UV, both backing Visibuilt’s ambition to replace carbon-intensive binders with biobased alternatives.

“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,” says 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,” says 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. ” says Thea Messel, General Partner, Unconventional Ventures.

Developing an alternative to bitumen and cement

Construction and infrastructure rely heavily on binders such as bitumen and cement, both associated with significant carbon emissions.

Visibuilt is developing visiBINDER, a biobased binder produced from mycelium — the root structure of fungi. The technology is designed to offer a less energy intensive solution for paving materials while meeting the durability and performance requirements of outdoor applications.

By combining biotechnology and material science, the company aims to enable a new category of lower-impact construction materials for roads, paths, and other infrastructure projects.

Next step: validation at scale

The new funding will allow Visibuilt to expand testing and validation activities, establish the production setup required for larger-scale trials, and strengthen the team with additional technical and commercial expertise.

These activities will support the company’s ambition to demonstrate the technology in real-world applications and prepare for future market introduction.

About Visibuilt

Visibuilt is a Danish biotechnology company developing a mycelium-based binder solution for the construction and infrastructure industries. Founded by Line Kloster Pedersen and Oleksii Rebrov, the company combines biotechnology and material science to create lower-carbon alternatives to conventional construction materials.

About EIFO

EIFO is Denmark’s state-owned investment and export financing institution. It supports Danish startups, SMEs, and larger companies through loans, guarantees, and equity investments. EIFO helps businesses innovate, scale internationally, and attract capital while promoting sustainable growth and the green transition.

About Unconventional Ventures

Unconventional Ventures is an impact-focused venture capital fund investing in early-stage technology companies tackling critical inefficiencies in resource-intensive industries. UV backs founders building scalable solutions at the intersection of operational performance and measurable environmental impact. UV Fund II is based in Copenhagen and invests across Nordic and European markets, with a focus on companies where revenue growth and positive environmental outcomes are structurally the same variable. www.unconventional.vc

About EMDFonden

EMDFonden is a Danish commercial foundation focused on developing and supporting technology that reduces resource use and environmental impact. It invests in and promotes software, data, and modelling tools – especially within the energy and climate sector. The foundation also funds research and development projects that contribute to the green transition.

About Proptechfonden

Proptechfonden is a Copenhagen-based venture capital fund that invests in early-stage startups in real estate, construction, and urban development technology. It focuses on pre-seed and seed companies with an MVP and early traction. The fund often acts as a lead or co-lead investor, typically alongside experienced business angels.