Europe's $13.5B climate tech problem
Growth capital is finally arriving in European climate tech. Here's where to position.
Europe produces more climate tech startups than the United States. According to Dealroom, the continent has generated more new climate ventures over the past five years than any other region in the world.
But it scales fewer. Far fewer.
The bottleneck is Series B. That’s when a startup has proven the technology works, has customers, has revenue — and needs $30-100 million to build the factory, expand into new markets, hire the team that turns it into a real company.
European funds are either too small (seed and Series A only) or too large (private equity buying mature assets). In the middle — the $25-100 million check — almost nothing.
The result: Europe invents, someone else scales and captures the returns.
A World Fund report published in January 2026 put a number on this for the first time. Using Dealroom data, they calculated the gap: $13.5 billion. That’s the cumulative 2020-2024 deficit between what European climate startups raised at Series B and what they would have raised if rounds matched US size and frequency.
The details: average Series B in Europe is $35.2 million, roughly 20% below the US average of $45.5 million. But the sharper difference is graduation rate. Only 15% of European startups that raise a seed make it to Series B. In the US, it’s 25%.
That’s 37 companies per year looking for growth capital and not finding it — unmet demand for anyone who can provide it.
What’s changing
The gap has existed for years. What’s new is that vehicles are being built to close it.
Partech Impact closed in March 2026 with €300 million targeting impact-native companies with more than €10 million in revenue. Not early stage, not buyout — the missing middle. Sectors: clean manufacturing, sustainable agriculture, green construction, mobility.
World Fund, the Berlin VC behind the gap report, is raising its second fund with a target of €500 million. Two-thirds of capital reserved for follow-ons — the Series B money that’s been missing. The fund is in fundraising now.
Scaleup Europe Fund is the largest. Target: €5 billion, with €1 billion from the European Innovation Council and the rest from private investors. Founding investors include Wallenberg Investments and Novo Holdings. Launch expected Q2 2026.
Three vehicles, same thesis: the gap is real and closable.
What’s changed
Europe has launched similar initiatives before. InvestEU, EIF programs, national funds. None solved the growth capital problem.
Three things are different now.
Private capital as anchor. Scaleup Europe Fund has Wallenberg and Novo Holdings as founding investors — not public money trying to attract private, but private capital in from the start. That changes the incentives.
Political pressure. The Draghi Report on European competitiveness put the financing gap at the center of EU policy debate. Resources are following.
Mature pipeline. Five years of seed and Series A investments have created a generation of climate startups that have proven the technology and are ready to scale. The constraint is now explicitly capital, not innovation.
The risk is execution: whether these vehicles deploy fast enough before the pipeline ages out. The signal to watch is pace of deployment in H2 2026.
What this means for LPs
If you want exposure to European climate tech at the growth stage, the window is now.
Partech Impact just closed. World Fund II is in fundraising. Scaleup Europe Fund is looking for founding investors through H1 2026.
Today there are few growth-stage climate funds in Europe. Those that exist can pick the best deals with less competition. When Scaleup Europe Fund is operational with €5 billion, more capital will chase the same opportunities. Prices rise, expected returns fall.
What to watch: Scaleup Europe Fund’s first close (expected H2 2026) and World Fund II’s final size will signal whether private capital is actually committing at scale.
This is issue zero of Microclimate. Every week: the deals, the policy signals, and the investment logic behind the numbers. If your job is understanding where capital flows in the climate transition, subscribe.