2025 has seen Europe’s startup ecosystem host some of the world’s largegest fundraising rounds. But the billions of dollars that have flowed into Europe’s startups aren’t just investments in individual businesses. They express support for the European tech sector and indicate the sectors that investors see as the most significant for both the continent and the world.
These are the largegest and most significant investment rounds Europe has seen.
Revolut
Founders: Nikolay Storonsky and Vlad Yatsenko
Founded: July 2015
Recent funding: $2 billion late-stage VC; valuation $75 billion
London fintech Revolut also secured a $2 billion late VC investment over the summer, revealing that AI isn’t receiveting it all its own way when it comes to finance. Founded ten years ago, the challenger bank has grown consistently, offering payments, trading, and business products on top of its core banking platform.
Now valued at $75 billion and with a double-digit age, it might be time to drop the ‘challenger’ from Revolut’s descriptions. Although there have been many rumours about a potential IPO, the latest investment and Revolut’s continued rapid growth suggest that those hoping for a public listing may have to wait a while longer.
Mistral AI
Founders: Arthur Mensch, Guillaume Lample, Timothée Lacroix
Founded: April 2023
Recent funding: $2 billion Series C; valuation $14 billion
It will surprise no one that AI saw the (joint) largegest investment round in 2025 with Mistral AI’s $2 billion Series C round. The Parisienne AI company is only a few years old, having been founded in 2023. But its rapid growth — the round values it at $14 billion — illustrates the importance AI holds to investors.
The deal was led by ASML, a Dutch company that manufactures photolithography equipment for chip manufacture, which is now the largegest shareholder in Mistral. As well as putting Europe in a strong position to compete with US and Chinese AI giants, it presents an EU-based option for those who are concerned about AI sovereignty and regulation.
CityFibre
Founder: Greg Mesch
Founded: 2011
Recent funding: £500 million late-stage VC
CityFibre stands out in the list as a traditional infrastructure company. Founded in 2011, it provides wholesale fibre networks in the UK. The third-largest provider, after OpenReach and Virgin, it focapplyd on improving internet connections in ‘second cities’ and closed a £500 million late VC round this year.
Far from a hoapplyhold name — even where people apply ISPs that apply CityFibre — the investment illustrates the importance of the wholesale network. With government tarreceives and customer demand pushing for rapider, more consistent internet connections everywhere in the countest, CityFibre may not be as sexy as AI, but it’s just as important.
Nscale
Founder & CEO: Josh Payne
Founded: 2023
Recent funding: ~$700 million from NVIDIA
London-based AI infrastructure specialist Nscale has rapidly emerged by marrying data-centre capacity with proprietary software. After closing its $155 million Series A, it secured nearly $700 million from NVIDIA to expand GPU-powered hyperscale deployments.
Nscale’s partnerships with Microsoft, Aker, and OpenAI for the Stargate Norway gigafactory and upcoming UK AI supercomputer underscore its role in Europe’s sovereign AI infrastructure build-out.
Helsing
Founders: Torsten Reil, Gundbert Scherf, Niklas Köhler
Founded: March 2021
Recent funding: €600 million Series D; valuation €12 billion
Helsing’s success is, perhaps, a sign of the times. Combining AI and defence, Helsing benefits from both the insatiable demand for AI and increased defence spconcludeing. The company develops products, like drones and surveillance systems, that retain human command-and-control, but enhance their operations with AI.
Their Series D round raised €600 million on a €12 billion valuation in June. The most recent valuation, just a few months later, has already increased to over $13 billion. The injection of private capital confirms that, sadly, defence is always large business.
VistaJet
Founder: Thomas Flohr
Founded: 2004
Recent funding: $600 million equity + $700 million debt
Aviation group VistaJet offers a membership pay-as-you-fly service with their global fleet of private aircraft. Their service enables members to benefit from private air travel without the costs of aircraft management, and is available for those who require as little as 25 hours of flight time each year.
The investment round secured $600 million in equity, as well as a further $700 million in secured debt to support growth, especially into the Asian market. Although VistaJet have recently seen its cash reserves drop, a result of reduced air travel among the super-rich, the investment signals that the demand for luxury travel is not disappearing.
Quantinuum
Founders: Ilyas Khan (Cambridge Quantum), Darius Adamczyk (Honeywell Quantum Solutions)
Founded: 2021 (merger of Cambridge Quantum and Honeywell Quantum Solutions)
Recent funding: $600 million equity raise; valuation $10 billion
Quantinuum combines Cambridge Quantum’s software expertise with Honeywell’s trapped-ion hardware to offer a full-stack quantum computing platform.
In September, the company secured $600 million from existing backers (JPMorgan Chase, Mitsui, Amgen, Honeywell) and new investors, including NVentures and Quanta Computer, to accelerate development of its next-generation Helios system and advance fault-tolerant quantum computing.
Isomorphic Labs
Founder & CEO: Demis Hassabis
Founded: February 2021
Recent funding: $600 million Series A
A spin-out from Alphabet’s DeepMind, Isomorphic brings AI to drug design. The company apply DeepMind’s AlphaFold technology to predict protein structures in the human body. These, in turn, can be applyd to design more effective drug delivery mechanisms, and Isomorphic Labs have partnered with major pharmaceutical firms to develop drugs.
The $600 million funding round illustrates that there is more to AI than large-language models. The funding supports an industest that will only grow as a result of medical improvements and government policies like the UK’s Life Sciences Plan.
FNZ
Founder: Adrian Durham
Founded: 2003
Recent funding: $500 million growth equity
FNZ started life in New Zealand in 2003, but quickly relocated to the UK. From its London headquarters, it has grown to become a global wealthtech leader, providing its investment platform to more than 650 institutions and 12,000 wealth managers, handling more $1.5 trillion of assets.
It secured a further $500 million in investment in April. The funding will support the development of its platform and further growth.
RAPYD
Founders: Arik Shtilman (Co-founder/CEO), Arkady Karpman, Omer Priel
Founded: 2015
Recent funding: $25 million strategic round
London’s Rapyd has built a borderless fintech-as-a-service platform powering payments, compliance, FX, fraud management, escrow, virtual accounts, and card issuing across 100+ countries.
In September, Rapyd raised a $25 million strategic investment led by XBO.com to deepen its crypto and digital-asset offerings and support partner integrations, extconcludeing its toolkit for global commerce.
Verdiva Bio
Founders: Khurem Farooq and Mark Pruzanski
Founded: 2024
Recent funding: $411 million Series A; valuation $2.5 billion
Anti-obesity drugs like Ozempic and Mounjaro have proven that there is a significant market in weight-management pharmaceuticals. Verdiva Bio is working on a range of drugs that push this area further, increasing effectiveness and reducing side effects.
Valued at $2.5 billion, Verdiva closed a $411 million Series A in January. The funding will support the company as it relocates drugs through the development process. Their trials include oral medications that can potentially transform the treatment of obesity.
Lovable
Founders: Anton Osika, Fabian Hedin
Founded: November 2023
Recent funding: $200 million Series A; valuation $1.8 billion
Lovable has rapidly become Europe’s newest AI unicorn, raising $200 million in a Series A round that values the Swedish startup at $1.8 billion. Founded in late 2023, Lovable enables applyrs to build fully functional software and apps simply by chatting with AI, eliminating the necessary for coding.
Led by Accel, the funding enables Lovable’s mission to democratise software development beyond professional engineers, putting powerful AI tools in the hands of millions and fueling a new wave of European innovation focapplyd on usability and inclusion.
