Vertoro closes €17M Series B to scale renewable crude oil
What's the deal? Dutch cleantech firm Vertoro has closed a €17 million Series B round to commercialise its technology that converts plant-based residues and agricultural waste into renewable crude oil. The funding will primarily go toward building a 5-kilotonne-per-year commercial plant at the Port of Rotterdam, set to begin operations by January 2027.
The round consists of €10 million in new capital and €7 million in converted loan notes. Backers include Invest-NLDealroom has a profile for this one. Try Dealroom →, Climate Tech PartnersDealroom has a profile for this one. Try Dealroom →, and shipping giant MaerskDealroom has a profile for this one. Try Dealroom →, along with regional Dutch funds.
Why now? Heavy industries like maritime shipping and aviation remain among the hardest sectors to decarbonise. Vertoro's bio-crude works as a drop-in replacement for fossil crude in existing refinery infrastructure — no engine modifications or new catalysts required.
The company currently runs a demonstration plant in Geleen, Netherlands, but this capital is designed to push it from validation to commercial production. After Rotterdam, Vertoro plans to design and license full-scale facilities with capacities of 100 to 250 kilotonnes per year.
"By creating a renewable oil that can serve multiple industries, from chemicals to shipping to aviation, we can scale faster and deliver meaningful emissions reductions sooner," said Dirk den Ouden, incoming chief executive officer of Vertoro.
What could go wrong? Scaling from a demo plant to commercial production is where many cleantech firms stumble. Construction delays, feedstock supply challenges, and the economics of competing with cheap fossil crude all pose risks. The renewable fuels market also depends heavily on regulatory support — any shift in EU policy could change the calculus quickly.
The signal: Maersk's participation as a corporate investor is particularly noteworthy — when an end customer in one of the hardest-to-decarbonise industries backs a fuel startup still classified as early stage on Dealroom, it suggests the technology has cleared a credibility threshold that purely financial investors can't validate alone. The blend of state-backed capital from Invest-NL, climate-specialist funds, and a strategic corporate backer points to a funding model increasingly common in cleantech: de-risking the leap from demo to commercial scale by locking in both capital and future demand simultaneously.
Read more: ioplus.nl