The Most Hyped Startups in the UK
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The short answer
The UK has more unicorns than any other country in Europe, and in its most hyped companies span fintech, frontier AI, and deeptech. This list covers fifteen of the most talked-about British startups — Revolut, Monzo, Wise, Checkout.com, Starling Bank, GoCardless, Cleo, Synthesia, Wayve, PolyAI, Isomorphic Labs, Quantexa, Multiverse, Darktrace, and Graphcore — with who founded each, what they build, where to follow the founders, and how active those founders actually are
London is one of the strongest startup hubs on the planet, and Britain keeps minting global companies in fintech and, increasingly, AI. Below are fifteen of the most hyped startups headquartered in the UK — the ones investors, operators, and founders keep bringing up — each with the founders behind it and their public profiles. It's not a strict ranking; every company here is among the most discussed in its category
| Company | What they build | Sector |
|---|---|---|
| Revolut | Global consumer and business financial super-app | Fintech |
| Monzo | Consumer digital bank built app-first | Neobank |
| Wise | Low-cost international money transfers | Fintech |
| Checkout.com | Enterprise payment processing infrastructure | Payments |
| Starling Bank | Digital bank plus banking software licensing | Neobank / SaaS |
| GoCardless | Bank-debit and account-to-account payments | Payments |
| Cleo | AI money assistant for younger consumers | Consumer fintech |
| Synthesia | AI video generation with digital avatars | Generative AI |
| Wayve | Self-learning autonomous driving software | Autonomy / AI |
| PolyAI | Voice AI agents for customer service | Conversational AI |
| Isomorphic Labs | AI-driven drug discovery (DeepMind spin-out) | AI / biotech |
| Quantexa | Decision intelligence for banks and governments | Data analytics |
| Multiverse | Apprenticeships and applied skills training | Edtech |
| Darktrace | AI cyber defence and threat response | Cybersecurity |
| Graphcore | AI accelerator chips and systems | Semiconductors |
The most hyped UK startups in
1. Revolut
Nikolay Storonsky and Vlad Yatsenko built Revolut into a global financial super-app for banking, currency, cards, and investing. It's Europe's most valuable private tech company, valued at $75 billion in 2025 and reported to have climbed toward $115 billion in a share sale. Visitrevolut.com
Founders: Nikolay Storonsky (CEO) and Vlad Yatsenko. Storonsky keeps a low profile on X, posting rarely. Follow him X · LinkedIn
2. Monzo
Monzo is the UK challenger bank that turned app-based current accounts into a mainstream product. It reached a $5.9 billion valuation in a 2024 share sale and is widely tipped as an IPO candidate. Visitmonzo.com
Co-founder Tom Blomfield — who has since moved on and joined Anthropic — is one of the most active founder voices on this list, posting regularly about startups and AI. Follow him X · LinkedIn
3. Wise
Kristo Käärmann and Taavet Hinrikus founded Wise to make cross-border money transfers cheap and transparent. Now public, Wise moved its primary listing to the Nasdaq in while keeping a UK secondary listing. Visitwise.com
CEO Kristo Käärmann posts occasionally; co-founder Taavet Hinrikus, now a venture investor, is very active on European tech. Follow Käärmann X · LinkedIn
4. Checkout.com
Guillaume Pousaz founded Checkout.com, the enterprise payments-processing platform. Once valued at $40 billion, it's since been marked down toward $11–12 billion — a defining European fintech story of the correction. Visitcheckout.com
Founder Guillaume Pousaz is more active on LinkedIn than on X. Follow him X · LinkedIn
5. Starling Bank
Anne Boden founded Starling Bank, one of the few consistently profitable UK neobanks, now also selling its banking software through its Engine arm. Visitstarlingbank.com
Founder Anne Boden stepped away from Starling in 2024 and posts occasionally, now mostly about AI and her new ventures. Follow her X · LinkedIn
6. GoCardless
Hiroki Takeuchi co-founded GoCardless, the bank-payment and direct-debit platform. In a landmark 2025 deal, Dutch group Mollie agreed to acquire it to form a roughly €3 billion European payments group. Visitgocardless.com
CEO Hiroki Takeuchi keeps a low profile on X. Follow him X · LinkedIn
7. Cleo
Barney Hussey-Yeo founded Cleo, the AI personal-finance app aimed at Gen Z for budgeting and cash advances, with a fast-growing US business. Visitmeetcleo.com
Founder Barney Hussey-Yeo posts occasionally about building the company. Follow him X · LinkedIn
8. Synthesia
Victor Riparbelli and his co-founders built Synthesia, the AI video platform that turns text into studio-quality videos with lifelike avatars. It raised $200 million at around a $4 billion valuation, backed by Nvidia and Alphabet's GV. Visitsynthesia.io
CEO Victor Riparbelli posts occasionally about AI and Synthesia's launches. Follow him X · LinkedIn
9. Wayve
Alex Kendall co-founded Wayve, the autonomous-driving company building end-to-end AI that learns to drive. Its 2024 raise was a UK AI record, and a round valued it around $8.6 billion ahead of a London robotaxi launch. Visitwayve.ai
CEO Alex Kendall posts occasionally on AI and autonomy. Follow him X · LinkedIn
10. PolyAI
Nikola Mrkšić and his Cambridge co-founders built PolyAI, an enterprise voice-AI company whose lifelike agents handle customer-service calls. It raised a fresh round in 2025 amid the voice-AI boom, backed by Nvidia's venture arm. Visitpoly.ai
CEO Nikola Mrkšić is on X and LinkedIn. Follow him X · LinkedIn
11. Isomorphic Labs
Founded by Sir Demis Hassabis, Isomorphic Labs is the Alphabet-backed company applying AlphaFold-derived AI to drug discovery. It raised its first external round — $600 million — in 2025 and has signed major pharma partnerships. Visitisomorphiclabs.com
Demis Hassabis — who also leads Google DeepMind — is one of the most active and widely followed founders on this list on X. Follow him X
12. Quantexa
Vishal Marria and his co-founders built Quantexa, a decision-intelligence company using AI and entity resolution for fraud and financial-crime analytics. A 2025 round valued it at $2.6 billion. Visitquantexa.com
CEO Vishal Marria is most active on LinkedIn. Follow him X · LinkedIn
13. Multiverse
Euan Blair founded Multiverse, the AI-powered apprenticeship and workforce-training platform, which reached a $2.1 billion valuation in as it positioned itself as Europe's AI-adoption layer. Visitmultiverse.io
Founder Euan Blair is very active on LinkedIn, his main channel. Follow him LinkedIn
14. Darktrace
Darktrace is the Cambridge-born cybersecurity company whose self-learning AI detects and responds to threats autonomously. It was taken private by Thoma Bravo in a roughly $5.3 billion deal in 2024. Visitdarktrace.com
Co-founder Poppy Gustafsson led Darktrace to its IPO before stepping down in 2024; she now serves as a UK government minister. Follow her LinkedIn
15. Graphcore
Nigel Toon and Simon Knowles founded Graphcore, the Bristol-based chip company designing processors purpose-built for AI. It was acquired by SoftBank in 2024 to power the next wave of AI hardware. Visitgraphcore.ai
CEO and co-founder Nigel Toon is most active on LinkedIn. Follow him LinkedIn
What the most hyped UK founders have in common — and where they don't
Look at the follow links above and a pattern jumps out: only a handful of these fifteen founders post consistently on X — Tom Blomfield and Demis Hassabis stand out — while most are far quieter, leaning on LinkedIn or keeping a low public profile. By our count, only around a third are genuinely active on social at allthe founder's audience is the company's
That's the opportunity hiding in plain sight. Even celebrated founders routinely leave founder reach on the table — the same pattern we found mapping the most hyped startups in the US and France. In a crowded market, the founder's own voice is often the fastest way to earn trust with customers, candidates, and investors at oncethe most hyped startups in France
Frequently asked questions
What is the most valuable startup in the UK
Revolut is the UK's most valuable startup — and Europe's most valuable private tech company — valued at $75 billion in 2025 and reported to have climbed toward $115 billion in a share sale
How many unicorns does the UK have
The UK has more unicorns — startups valued at over $1 billion — than any other country in Europe, well over 50, spanning fintech, AI, and deeptech, with London home to the majority
Which UK startup is the most hyped in AI
Several: Wayve in autonomous driving, Synthesia in AI video, and Isomorphic Labs in AI drug discovery are among the most talked-about British AI companies in
Are these UK startups public or private
It's a mix. Wise trades on the Nasdaq, while Darktrace and Graphcore were taken over (by Thoma Bravo and SoftBank respectively). Most of the others — Revolut, Monzo, Starling, Synthesia, Wayve — remain privately held
Where are most UK startups based
The majority are in London, though Britain's startup strength extends to Cambridge (home to Darktrace) and Bristol (home to Graphcore), among other hubs
Which UK founders are most active on social media
Among this group, Monzo co-founder Tom Blomfield and Isomorphic Labs founder Demis Hassabis are the most active on X, while many others — including Euan Blair and Nigel Toon — are more active on LinkedIn
The bottom line
The UK's most hyped startups span fintech, frontier AI, and deeptech — but the throughline is founders who built something people talk about. What varies is how many of them show up to talk about it: a few are everywhere, most are barely visible, and that gap is exactly where founder reach is won or lost in
At Invisible Keyboard, we run founder and team content for exactly these kinds of companies — so a founder's presence compounds without the founder having to do the workwe run founder and team content