Startups ranked by AI-estimated valuation
United Kingdom’s 50 most valuable startups
A quarterly ranking of non-listed British startups that have already raised funds, established by artificial intelligence from public information. The market sets the value; our AI estimates it.
The market at a glance
50companies ranked
31companies on the radar
USD 23.6bnraised in 2025
36 of USD 100M+rounds in 2025
UK startups raised USD 23.6bn in 2025, the first annual increase in four years, with 36 rounds of USD 100M or more. 2026 is running at about twice that pace: USD 17bn in the first half alone, driven by AI (Wayve, ElevenLabs, Ineffable Intelligence), defence and chips. Sources: HSBC Innovation Banking UK Innovation Update (H1 2026), UKTN (Jul 2026). Intention counters will be shown above a threshold of amount and number of Backers.
Listed benchmarks
Arm · Chip architecture licensing · Nasdaq · ARMOcado · Online grocery technology · LSE · OCDOAuto Trader · Online car marketplace · LSE · AUTORightmove · Property portal · LSE · RMVTrustpilot · Online reviews · LSE · TRST
Not ranked: no intention is possible on a listed company.
National ranking · all sectors
Snapshot10 Oct 2026A snapshot taken on 10 Oct 2026
This ranking shows the startups as they stood on 10 Oct 2026. Funding rounds, valuations and other events announced after that date are not included yet. They will be taken into account in the next edition, scheduled for 3 Jan 2027.
Spotted a more recent round? Tell us →First edition: no movements yet.
This ranking shows the startups as they stood on 10 Oct 2026. Funding rounds, valuations and other events announced after that date are not included yet. They will be taken into account in the next edition, scheduled for 3 Jan 2027.
Spotted a more recent round? Tell us →First edition: no movements yet.
| # | Company | Sub-sector | Known funding | Estimated valuation (AI) · range | Pool of interestsInterest: a free, non-binding declaration on a company, or on a sector within an area, made during the free phase of a pool. Pool: all the Interests declared on the same target. This column shows the number of Backers and the combined amount of their tickets. Terms for Backers → | BackBacking a startup on Uback (pronounced “you back”) can be done in two ways: Interest · free: a non-binding declaration that signals your demand for a company or a sector. You can move or withdraw it at any time, with up to 5 at once. Intention · coming soon: a paid, confirmed declaration, still non-binding. Once its pool reaches critical mass, it is presented to a company by a local partner. Neither is an order nor a commitment to invest. Terms for Backers → |
|---|---|---|---|---|---|---|
| 1 | RevolutLondon · founded 2015 Valuation set by a secondary sale reported by Bloomberg and confirmed by the company (not the price). About 75M retail customers. |
Fintech › financial super-app | USD 1.7bn+ raised Secondary share sale · Jul 2026 at a reported USD 115bn (last primary: Series E · USD 800M · Jul 2021, SoftBank, Tiger Global) |
Last known equity round: Series E · USD 800M · Jul 2021 Published valuation: USD 115bn (Jul 2026)Method |
— | Back |
| 2 | ElevenLabsLondon · founded 2022 Polish founders; HQ London with a large New York office. The Feb 2026 round valued it at USD 11bn. |
AI › voice generation and voice agents | USD 780M+ raised Series D · USD 500M · Feb 2026 (Sequoia, a16z, ICONIQ); secondary sale of USD 300M at USD 22bn · Sep 2026 (Wellington, T. Rowe Price) |
Last known equity round: Series D · USD 500M · Feb 2026 (Sequoia, a16z, ICONIQ) Published valuation: USD 22bn (Sep 2026)Method |
— | Back |
| 3 | Checkout.comLondon · founded 2012 Internal valuation of USD 12bn set by an employee share buyback in Apr 2025, down from USD 40bn in 2022. |
Fintech › online payments | USD 1.8bn raised Series D · USD 1bn · Jan 2022 (Altimeter, Dragoneer, Tiger Global), at USD 40bn |
Last known equity round: Series D · USD 1bn · Jan 2022 (Altimeter, Dragoneer, Tiger Global) Published valuation: USD 12bn (Apr 2025)Method |
— | Back |
| 4 | SumUpLondon · founded 2012 German founders; HQ London. Banks lined up for an IPO (Bloomberg, Apr 2026); the FT reports an IPO valuation of USD 10–15bn. The EUR 285M raised in Dec 2023 was mostly credit. |
Fintech › payments for small merchants | USD 1.5bn+ raised Equity round · EUR 590M · Jun 2022 (Bain Capital Tech Opportunities), at EUR 8bn |
Last known equity round: Equity round · USD 620M · Jun 2022 (Bain Capital Tech Opportunities) Published valuation: USD 8.5bn (Jun 2022)Method |
— | Back |
| 5 | WayveLondon · founded 2017 Valued at USD 8.6bn post-money. Uber committed up to USD 300M more, tied to milestones (not counted). |
Mobility › AI driving software | USD 2.5bn raised Series D · USD 1.2bn · Feb 2026 (Mercedes-Benz, Stellantis, Nissan; SoftBank Vision Fund 2, Nvidia, Microsoft, Uber) |
Last known equity round: Series D · USD 1.2bn · Feb 2026 (Mercedes-Benz, Stellantis, Nissan; SoftBank Vision Fund 2, Nvidia, Microsoft, Uber) Published valuation: USD 8.6bn (Feb 2026)Method |
— | Back |
| 6 | MonzoLondon · founded 2015 Pre-tax profit of GBP 172.6M on revenue of GBP 1.7bn in the year to Mar 2026. Nubank denied takeover reports in Sep 2026. |
Fintech › digital bank | USD 1.5bn raised Equity round · USD 430M · Apr 2024 (CapitalG, GIC), at USD 5bn; employee share sale at USD 5.9bn · Oct 2024 (Hedosophia, GIC) |
Last known equity round: Equity round · USD 430M · Apr 2024 (CapitalG, GIC) Published valuation: USD 5.9bn (Oct 2024)Method |
— | Back |
| 7 | Starling BankLondon · founded 2014 A secondary sale at GBP 3.5–4bn was sought in 2026 (FT); final price not confirmed. A US IPO is under consideration. |
Fintech › digital bank and banking software | USD 500M+ raised Equity round · GBP 272M (USD 375M) · Mar 2021 (Fidelity, Qatar Investment Authority) |
Last known equity round: Equity round · USD 375M · Mar 2021 (Fidelity, Qatar Investment Authority)Method | — | Back |
| 8 | Ineffable IntelligenceLondon · founded 2025 Founded by David Silver, formerly of DeepMind. Valued at USD 5.1bn post-money. No product yet. |
AI › reinforcement-learning research lab | USD 1.1bn raised Seed · USD 1.1bn · Apr 2026 (Sequoia, Lightspeed; Nvidia, Google, Index, DST, EQT, British Business Bank) |
Last known equity round: Seed · USD 1.1bn · Apr 2026 (Sequoia, Lightspeed; Nvidia, Google, Index, DST, EQT, British Business Bank) Published valuation: USD 5.1bn (Apr 2026)Method |
— | Back |
| 9 | LendableLondon · founded 2014 Revenue of GBP 446M in 2025, up 90%. Its 2026 asset-backed securities are debt and not counted. |
Fintech › consumer lending | USD 280M raised Equity round · GBP 210M · Mar 2022 (Ontario Teachers’ Pension Plan), at more than GBP 3.5bn |
Last known equity round: Equity round · USD 280M · Mar 2022 (Ontario Teachers’ Pension Plan) Published valuation: USD 4.5bn (Mar 2022)Method |
— | Back |
| 10 | SynthesiaLondon · founded 2017 Valued at USD 4bn. Annual recurring revenue above USD 100M (Apr 2025). |
AI › video generation for companies | USD 530M+ raised Series E · USD 200M · Jan 2026 (GV; NVentures and existing investors), plus a secondary sale |
Last known equity round: Series E · USD 200M · Jan 2026 (GV; NVentures and existing investors) Published valuation: USD 4bn (Jan 2026)Method |
— | Back |
| 11 | Cambridge AerospaceCambridge · founded 2024 Valued at USD 3.4bn. Several UK Ministry of Defence contracts. |
Defence › low-cost interceptors | USD 500M+ raised Series C · USD 300M · Aug 2026 (DFJ Growth; Lux, Accel, Lakestar, Elad Gil) |
Last known equity round: Series C · USD 300M · Aug 2026 (DFJ Growth; Lux, Accel, Lakestar, Elad Gil) Published valuation: USD 3.4bn (Aug 2026)Method |
— | Back |
| 12 | OlixLondon · founded 2024 Valued at USD 3.3bn; date of the round and lead investor reported by a single source. |
Semiconductors › AI inference chips | USD 530M+ raised Series B · USD 312M · 2026 (Fundomo; Arm, Hudson River Trading, UK Sovereign AI) |
Last known equity round: Series B · USD 312M · Aug 2026 Published valuation: USD 3.3bn (Aug 2026)Method |
— | Back |
| 13 | FractileLondon · founded 2022 Valued at about USD 1bn in May 2026. Bloomberg reported talks in Aug 2026 for about USD 600M at USD 6.5bn pre-money, after a chip deal with Anthropic worth about USD 250M. |
Semiconductors › AI inference chips | USD 250M+ raised Series B · USD 220M · May 2026 (Accel, Founders Fund, Factorial; Conviction, 8VC, Pat Gelsinger) |
Last known equity round: Series B · USD 220M · May 2026 (Accel, Founders Fund, Factorial; Conviction, 8VC, Pat Gelsinger) Published valuation: USD 1bn (May 2026)Method |
— | Back |
| 14 | CuspAICambridge · founded 2024 Valued at USD 2.6bn. |
AI › materials discovery | USD 580M raised Series B · USD 450M · Jul 2026 (Kleiner Perkins, NEA; Bezos Expeditions, UK Sovereign AI, Lux, AMD Ventures, Temasek) |
Last known equity round: Series B · USD 450M · Jul 2026 (Kleiner Perkins, NEA; Bezos Expeditions, UK Sovereign AI, Lux, AMD Ventures, Temasek) Published valuation: USD 2.6bn (Jul 2026)Method |
— | Back |
| 15 | QuantexaLondon · founded 2016 Valued at USD 2.6bn. Annual recurring revenue above USD 100M (Oct 2024). |
AI › decision intelligence and financial crime | USD 500M+ raised Series F · USD 175M · Mar 2025 (Teachers’ Venture Growth) |
Last known equity round: Series F · USD 175M · Mar 2025 (Teachers’ Venture Growth) Published valuation: USD 2.6bn (Mar 2025)Method |
— | Back |
| 16 | PhysicsXLondon · founded 2019 Valued at about USD 2.4bn. |
AI › physics AI for engineering | USD 470M+ raised Series C · USD 300M · Jun 2026 (Temasek; M&G, Applied Materials, Atomico, General Catalyst, Nvidia, Siemens) |
Last known equity round: Series C · USD 300M · Jun 2026 (Temasek; M&G, Applied Materials, Atomico, General Catalyst, Nvidia, Siemens) Published valuation: USD 2.4bn (Jun 2026)Method |
— | Back |
| 17 | OakNorthLondon · founded 2015 Pre-tax profit of GBP 223M in 2025 on a loan book of GBP 7.2bn. Acquiring Community Unity Bank in the US. |
Fintech › bank for growing businesses | USD 1bn+ raised Equity round · USD 440M · Feb 2019 (SoftBank Vision Fund, Clermont Group), at USD 2.8bn |
Last known equity round: Equity round · USD 440M · Feb 2019 (SoftBank Vision Fund, Clermont Group)Method | — | Back |
| 18 | MultiverseLondon · founded 2016 Valued at USD 2.1bn. First cash-positive quarter in Q1 2026. |
Edtech › workplace AI and data skills | USD 570M raised Series D extension · USD 70M · May 2026 (Schroders Capital) |
Last known equity round: Series D extension · USD 70M · May 2026 (Schroders Capital) Published valuation: USD 2.1bn (May 2026)Method |
— | Back |
| 19 | MarshmallowLondon · founded 2017 Valued at more than USD 2bn. Revenue run-rate of USD 500M and 1M drivers insured (Apr 2025). |
Insurtech › car insurance | USD 250M+ raised Equity and debt · USD 90M · Apr 2025 (Portage; BlackRock, Columbia Lake), equity share undisclosed |
No equity round with a disclosed amount. Published valuation: USD 2bn (Apr 2025)Method |
— | Back |
| 20 | ZilchLondon · founded 2018 Valued at USD 2bn, unchanged since 2021. Revenue of GBP 110.3M in 2025, up 93%. London listing considered for 2027 (FT). |
Fintech › buy now, pay later | USD 500M+ raised Equity round · USD 175M · Nov 2025 (KKCG; BNF Capital) |
Last known equity round: Equity round · USD 175M · Nov 2025 (KKCG; BNF Capital) Published valuation: USD 2bn (Nov 2025)Method |
— | Back |
| 21 | TeyaLondon · founded 2019 Formerly SaltPay. No round since 2021. |
Fintech › payments for small merchants | USD 1.1bn raised Series C · USD 370M · Nov 2021 (Accel) |
Last known equity round: Series C · USD 370M · Nov 2021 (Accel)Method | — | Back |
| 22 | Oxford Quantum CircuitsReading · founded 2017 No valuation published. The British Business Bank committed GBP 100M (equity). |
Quantum › superconducting quantum computers | USD 450M+ raised Series C · USD 350M · Jun 2026 (Bullhound; Chevron, British Business Bank, Oxford Science Enterprises) |
Last known equity round: Series C · USD 350M · Jun 2026 (Bullhound; Chevron, British Business Bank, Oxford Science Enterprises)Method | — | Back |
| 23 | ManyPetsLondon · founded 2012 Pre-tax profit of about GBP 10M on GBP 230M of premiums (year to Mar 2026); exited the US. |
Insurtech › pet insurance | USD 500M+ raised Series D · USD 350M · Jan 2022, at about USD 2bn |
Last known equity round: Series D · USD 350M · Jan 2022 Published valuation: USD 2bn (Jan 2022)Method |
— | Back |
| 24 | Blockchain.comLondon · founded 2011 Valued at about USD 7bn in Nov 2023, down from USD 14bn in 2022. Filed confidentially for a US IPO in May 2026 (Bloomberg). |
Crypto › wallet and exchange | USD 490M+ raised Series E · USD 110M · Nov 2023 (Kingsway, Lightspeed) |
Last known equity round: Series E · USD 110M · Nov 2023 (Kingsway, Lightspeed) Published valuation: USD 7bn (Nov 2023)Method |
— | Back |
| 25 | GoCardlessLondon · founded 2011 Targeting its first profit in 2026. |
Fintech › bank payments | USD 530M raised Series G · USD 312M · Feb 2022 (Permira), at USD 2.1bn |
Last known equity round: Series G · USD 312M · Feb 2022 (Permira) Published valuation: USD 2.1bn (Feb 2022)Method |
— | Back |
| 26 | TideLondon · founded 2015 Valued at USD 1.5bn. Strong growth in India. |
Fintech › business accounts | USD 320M raised Series C · USD 120M · Sep 2025 (TPG’s The Rise Fund) |
Last known equity round: Series C · USD 120M · Sep 2025 (TPG’s The Rise Fund) Published valuation: USD 1.5bn (Sep 2025)Method |
— | Back |
| 27 | GranolaLondon · founded 2023 Valued at USD 1.5bn, up from USD 250M in May 2025. |
AI › meeting notes | USD 192M raised Series C · USD 125M · Mar 2026 (Index Ventures, Kleiner Perkins) |
Last known equity round: Series C · USD 125M · Mar 2026 (Index Ventures, Kleiner Perkins) Published valuation: USD 1.5bn (Mar 2026)Method |
— | Back |
| 28 | Zepz (WorldRemit, Sendwave)London · founded 2010 Valued at USD 5bn in 2021; the 2023 valuation was not disclosed. |
Fintech › cross-border remittances | USD 700M raised Equity round · USD 267M · Sep 2023 (Accel, LeapFrog) |
Last known equity round: Equity round · USD 267M · Sep 2023 (Accel, LeapFrog) Published valuation: USD 5bn (Aug 2021)Method |
— | Back |
| 29 | HumanoidLondon · founded 2024 Valued at USD 1.35bn post-money. Seed-funded by its founder, Artem Sokolov. |
Robotics › humanoid robots | USD 270M raised Series A · USD 152M · Jul 2026 (Prime Movers Lab; Schaeffler, Bosch, Fubon) |
Last known equity round: Series A · USD 152M · Jul 2026 (Prime Movers Lab; Schaeffler, Bosch, Fubon) Published valuation: USD 1.4bn (Jul 2026)Method |
— | Back |
| 30 | 9finLondon · founded 2016 Valued at USD 1.3bn. More than 300 clients. |
Fintech › debt markets data | USD 250M raised Series C · USD 170M · Mar 2026 (HarbourVest; CPP Investments, Highland Europe, Redalpine, Spark, Seedcamp) |
Last known equity round: Series C · USD 170M · Mar 2026 (HarbourVest; CPP Investments, Highland Europe, Redalpine, Spark, Seedcamp) Published valuation: USD 1.3bn (Mar 2026)Method |
— | Back |
| 31 | CleoLondon · founded 2016 Most users are in the US. Revenue of USD 254M in 2025. USD 38.8M of convertible notes in Mar 2025 not counted. |
Fintech › AI money assistant | USD 135M raised Series C · USD 80M · Jun 2022 (Sofina), at USD 500M |
Last known equity round: Series C · USD 80M · Jun 2022 (Sofina) Published valuation: USD 500M (Jun 2022)Method |
— | Back |
| 32 | Allica BankLondon · founded 2019 Valued at about USD 1.2bn. About GBP 4bn of SME loans (Feb 2026). |
Fintech › bank for established SMEs | USD 500M raised Series D · GBP 115M (USD 155M) · Feb 2026 (Ventura Capital, GLG; TCV, Blue Owl), mostly common equity |
Last known equity round: Series D · USD 155M · Feb 2026 (Ventura Capital, GLG; TCV, Blue Owl) Published valuation: USD 1.2bn (Feb 2026)Method |
— | Back |
| 33 | MoneyboxLondon · founded 2016 More than 1.9M customers (Jul 2026). |
Fintech › savings and investing app | USD 200M+ raised Employee secondary sale · Jul 2026, at GBP 800M (USD 1.06bn), on the London Stock Exchange’s private market (PISCES) |
No equity round with a disclosed amount. Published valuation: USD 1.1bn (Jul 2026)Method |
— | Back |
| 34 | Thought MachineLondon · founded 2014 Valued at USD 2.7bn in Nov 2022. Annual recurring revenue above USD 100M in Q2 2026; 68 banks signed. A GBP 30M deal in May 2026 mixed convertible notes and a secondary sale (not counted). |
Fintech › core banking software | USD 550M+ raised Series E · GBP 51M (USD 68M) · Jul 2025 (existing shareholders) |
Last known equity round: Series E · USD 68M · Jul 2025 (existing shareholders) Published valuation: USD 2.7bn (Nov 2022)Method |
— | Back |
| 35 | PaddleLondon · founded 2012 More than 6,000 customers (Jul 2025). The USD 25M from CIBC in 2025 is debt. |
Fintech › payments for software companies | USD 293M raised Series D · USD 200M · May 2022 (KKR), at USD 1.4bn |
Last known equity round: Series D · USD 200M · May 2022 (KKR) Published valuation: USD 1.4bn (May 2022)Method |
— | Back |
| 36 | Flo HealthLondon · founded 2015 About 70M monthly users and 5M paying subscribers (Jun 2024). |
Healthtech › women’s health app | USD 270M+ raised Series C · USD 200M+ · Jul 2024 (General Atlantic), at more than USD 1bn |
Last known equity round: Series C · USD 200M · Jul 2024 (General Atlantic) Published valuation: USD 1bn (Jul 2024)Method |
— | Back |
| 37 | NyoboltCambridge · founded 2019 Valued at USD 1bn. Revenue up about fivefold year on year (May 2026). |
Energy › fast-charging batteries | USD 150M+ raised Series C · USD 60M · May 2026 (Symbotic; IQ Capital, Latitude, Scania Invest) |
Last known equity round: Series C · USD 60M · May 2026 (Symbotic; IQ Capital, Latitude, Scania Invest) Published valuation: USD 1bn (May 2026)Method |
— | Back |
| 38 | Kraken Technology GroupFareham · founded 2022 Valued at USD 1bn. Not related to Kraken Technologies, the Octopus Energy software spin-off. |
Defence › uncrewed boats | USD 200M+ raised Series B · USD 175M · Jul 2026 (DTCP; British Business Bank, NATO Innovation Fund, Rheinmetall, NSSIF) |
Last known equity round: Series B · USD 175M · Jul 2026 (DTCP; British Business Bank, NATO Innovation Fund, Rheinmetall, NSSIF) Published valuation: USD 1bn (Jul 2026)Method |
— | Back |
| 39 | Open CosmosHarwell · founded 2015 Reported as a unicorn after the round. Founded by a Spanish engineer; factories in the UK, Spain, Portugal and Greece. |
Space › satellite missions and data | USD 450M+ raised Series C · EUR 300M (USD 348M) · Sep 2026 (ETF Partners, Lightrock, BCI, NSSIF, Phoenix Court, Convex), equity and debt split undisclosed |
No equity round with a disclosed amount. Published valuation: USD 1bn (Sep 2026)Method |
— | Back |
| 40 | ZopaLondon · founded 2005 The GBP 80M raised in May 2025 was AT1 capital, not counted. |
Fintech › digital bank | USD 1bn raised Equity round · GBP 68M (USD 87M) · Dec 2024 (A.P. Møller Holding), at more than USD 1bn |
Last known equity round: Equity round · USD 87M · Dec 2024 (A.P. Møller Holding) Published valuation: USD 1bn (Dec 2024)Method |
— | Back |
| 41 | MotorwayLondon · founded 2017 GBP 2.2bn of cars sold and GBP 66.4M of revenue in 2024. A GBP 25M loan in Jan 2026 is not counted. |
Mobility › used-car marketplace | USD 276M raised Series C · USD 190M · Nov 2021 (Index Ventures, ICONIQ Growth; BMW i Ventures), at more than USD 1bn |
Last known equity round: Series C · USD 190M · Nov 2021 (Index Ventures, ICONIQ Growth; BMW i Ventures) Published valuation: USD 1bn (Nov 2021)Method |
— | Back |
| 42 | DojoLondon · founded 2009 Formerly Paymentsense; Vitruvian is the main investor. |
Fintech › card payments for merchants | USD 190M+ raised Equity round · USD 190M · Jun 2025 (Vitruvian Partners) |
Last known equity round: Equity round · USD 190M · Jun 2025 (Vitruvian Partners)Method | — | Back |
| 43 | PaymentologyLondon · founded 2016 New sales up 117% in 2025. |
Fintech › card issuer processing | USD 230M+ raised Equity round · USD 175M · May 2026 (Apis Partners, Aspirity Partners) |
Last known equity round: Equity round · USD 175M · May 2026 (Apis Partners, Aspirity Partners)Method | — | Back |
| 44 | Basecamp ResearchLondon · founded 2020 Valued at about USD 800M. |
AI › biology foundation models | USD 200M+ raised Series C · USD 140M · Sep 2026 (S32; Nvidia, Anthology Fund, NATO Innovation Fund, True Ventures) |
Last known equity round: Series C · USD 140M · Sep 2026 (S32; Nvidia, Anthology Fund, NATO Innovation Fund, True Ventures) Published valuation: USD 800M (Sep 2026)Method |
— | Back |
| 45 | MatillionManchester · founded 2011 No round since 2021. |
Data › data pipelines | USD 310M raised Series E · USD 150M · Sep 2021 (General Atlantic), at USD 1.5bn |
Last known equity round: Series E · USD 150M · Sep 2021 (General Atlantic) Published valuation: USD 1.5bn (Sep 2021)Method |
— | Back |
| 46 | PolyAILondon · founded 2017 Valued at USD 750M. |
AI › voice agents for customer service | USD 200M+ raised Series D · USD 86M · Dec 2025 (Georgian, Hedosophia, Khosla; NVentures, British Business Bank, Citi) |
Last known equity round: Series D · USD 86M · Dec 2025 (Georgian, Hedosophia, Khosla; NVentures, British Business Bank, Citi) Published valuation: USD 750M (Dec 2025)Method |
— | Back |
| 47 | TesslLondon · founded 2024 Founded by Guy Podjarny, founder of Snyk. Valuation reported at USD 750M (City AM) or above USD 500M (TechCrunch). |
AI › spec-driven software development | USD 125M raised Series A · USD 100M · Nov 2024 (Index Ventures; Accel, GV, boldstart) |
Last known equity round: Series A · USD 100M · Nov 2024 (Index Ventures; Accel, GV, boldstart) Published valuation: USD 750M (Nov 2024)Method |
— | Back |
| 48 | CMR SurgicalCambridge · founded 2014 Valued at USD 3bn in 2021. A sale process at up to USD 4bn was reported by the FT in Jun 2025. More than 30,000 surgeries performed. |
Medtech › surgical robots | USD 1.2bn raised Equity and debt · USD 200M+ · Apr 2025 (SoftBank and existing investors; USD 68.75M of debt from Trinity Capital) |
Last known equity round: Equity part of the 2025 round · USD 131M · Apr 2025 (SoftBank and existing investors; USD 68.75M of debt from Trinity Capital) Published valuation: USD 3bn (Jun 2021)Method |
— | Back |
| 49 | EllipticLondon · founded 2013 Valued at USD 670M. |
Fintech › crypto compliance | USD 240M raised Series D · USD 120M · May 2026 (One Peak; Deutsche Bank, British Business Bank, Nasdaq Ventures, JPMorgan) |
Last known equity round: Series D · USD 120M · May 2026 (One Peak; Deutsche Bank, British Business Bank, Nasdaq Ventures, JPMorgan) Published valuation: USD 670M (May 2026)Method |
— | Back |
| 50 | Tokamak EnergyMilton Park · founded 2009 Spun out of the UK Atomic Energy Authority with outside investors. USD 60M of public funding not counted. |
Energy › fusion power and superconducting magnets | USD 275M raised Equity round · USD 125M · Nov 2024 (East X Ventures, Lingotto; Furukawa, British Patient Capital) |
Last known equity round: Equity round · USD 125M · Nov 2024 (East X Ventures, Lingotto; Furukawa, British Patient Capital)Method | — | Back |
Back · Declaring an intention does not mean this company is raising funds. · Terms
Ranking in descending order of AI-estimated valuation, based on public information, with no human intervention on the order. The valuations, ranges and brackets shown are editorial estimates produced by AI, purely indicative and imperfect by nature: neither a financial valuation, nor an offer, nor investment advice. Only the market sets a company’s value, through a funding round or a sale. Ranking established by Claude (Anthropic) from public information, following the published rules. A consensus of several AIs will apply from 1 December 2026. Eligibility: at least $1M raised in equity, non-listed company, main operations in the United Kingdom. Request a correction
Get every new edition
New entries, exits and movements, every quarter.
How to read this ranking
Rank
Companies are ranked by AI-estimated valuation, highest first. The market sets the value; our AI estimates it.
Estimate
An AI-estimated valuation, its uncertainty range and its order of magnitude. Indicative, and imperfect by nature.
- Hundreds of k$
- Millions $
- Tens of M$
- Hundreds of M$
- Unicorn
- Decacorn
- Hectocorn
Rankings by sector
Four verticals at launch, more when the feasibility test allows.Coming soon · Top 10
Fintech
Digital banks, payments, lending, insurance and wealth apps.
Coming soon · Top 10
AI & software
Voice and video AI, AI labs, decision intelligence and developer tools.
Coming soon · Top 10
Deeptech & defence
Self-driving software, AI chips, quantum computers, interceptors and satellites.
Coming soon · Top 10
Health, climate & skills
Women’s health, surgical robots, batteries, fusion and workplace training.
ProptechEdtechInsurtechGamingFoodtech
The Uback partner in the United Kingdom
Introductions made by a local partner, currently being selected
M&A boutique or capital raising adviser authorised by the FCA (Financial Conduct Authority), the only party entitled to contact companies and structure deals. Uback remains a media: it ranks and aggregates intentions, it takes part in no transaction.
—deals worked on
—deals closed
—average response time
M&A boutiques, capital raising advisers
Become Uback’s exclusive partner in the United Kingdom
- Foreign investors you would not find on your own
- Your name on every ranking of the country
- A dashboard of intentions by sector and by company, reserved for you
- A quarterly prospecting kit for your own clients
Radar · known eligible companies, not ranked
Sorted by date of last round, with no judgement and no AI call. Undisclosed amount: the round is confirmed by the press, not its amount.
- Metaview · HR tech › AI recruiting agentsSeries C · EUR 53.1M (USD 62M) · Oct 2026 (Insight Partners; GV, Vertex US, Plural, Seedcamp)Back
- Jack & Jill · HR tech › AI recruiting agentsSeries A · USD 40M · Sep 2026 (Air Street Capital; Madrona, Creandum, Antler)Back
- Callosum · AI › routing AI workloads across models and chipsSeed · USD 100M · Aug 2026 (Atomico; Plural, DCVC, UK Sovereign AI)Back
- 10x Banking · Fintech › core banking softwareFunding round · GBP 40M · Aug 2026 (AshGrove Capital; BlackRock, JPMorgan), instrument undisclosedBack
- iwoca · Fintech › SME lendingEquity round · amount undisclosed · 2019; recent funding is debt (GBP 250M facility, Jul 2026)Back
- Primer · Fintech › payments orchestrationSeries C · USD 100M · May 2026 (Sofina; Peak XV, Balderton, Accel, ICONIQ)Back
- Copper · Crypto › institutional custodySeries B · amount undisclosed · 2022; up for sale since May 2026Back
- Ebury · Fintech › cross-border payments for SMEsPrimary and secondary · about GBP 550M · Apr 2026 (Centerbridge; Santander, Vitruvian, 83North), pending approval; primary part undisclosedBack
- Zego · Insurtech › commercial motor insuranceFunding round · USD 28M · Apr 2026Back
- Dexory · Robotics › warehouse inventory robotsSeries C · USD 100M · Oct 2025, extended by GBP 8.5M in Mar 2026 (British Business Bank)Back
- Oxa · Mobility › autonomous industrial vehiclesSeries D (first close) · USD 103M · Mar 2026 (National Wealth Fund; NVentures, bp Ventures)Back
- Highview Power · Energy › liquid-air energy storageProject funding · GBP 130M · Nov 2025 (Mosaic, Scottish National Investment Bank, Centrica, Goldman Sachs, KIRKBI), equity and debt split undisclosedBack
- Phasecraft · Quantum › algorithmsSeries B · USD 34M · Sep 2025 (Plural, Playground Global, Novo Holdings)Back
- Aspora · Fintech › remittances for the Indian diasporaSeries B · USD 53M · May 2025 (Sequoia, Greylock; Quantum Light)Back
- Arondite · Defence › autonomous systems softwareSeed · USD 10M · May 2025 (Index Ventures)Back
- Lindus Health · Healthtech › clinical trialsSeries B · USD 55M · Jan 2025 (Balderton; Creandum, firstminute, Seedcamp)Back
- LemFi · Fintech › remittancesSeries B · USD 53M · Jan 2025 (Highland Europe)Back
- Cera · Healthtech › AI-led home careEquity and debt · USD 150M · Jan 2025 (BDT & MSD Partners, Schroders Capital), mostly debtBack
- Connected Kerb · Mobility › on-street EV chargingEquity · GBP 65M · Jan 2025 (National Wealth Fund, Aviva Investors)Back
- Form3 · Fintech › payment processing for banksSeries C extension · USD 61M · 2025 (Visa, British Patient Capital)Back
- Northflank · Cloud › developer platformSeed and Series A · USD 22.3M · Nov 2024 (Bain Capital Ventures)Back
- TrueLayer · Fintech › open-banking paymentsSeries E extension · USD 50M · Oct 2024 (Northzone)Back
- Riverlane · Quantum › error correctionSeries C · USD 75M · Aug 2024 (Planet First Partners; ETF Partners, EDBI, Cambridge Innovation Capital)Back
- Stability AI · AI › open image and audio modelsEquity round · USD 80M · Jun 2024 (Coatue, Lightspeed, Sean Parker, Greycroft)Back
- Skyports · Aviation › vertiports and drone deliverySeries C · GBP 88.3M (USD 110M) · Apr 2024 (ACS Group; Groupe ADP)Back
- Paysend · Fintech › cross-border transfersEquity round · USD 65M · Apr 2024 (Mastercard; Infravia, One Peak, Hermes GPE)Back
- Tractable · AI › damage assessment for insurersSeries E · USD 65M · Jul 2023 (SoftBank Vision Fund 2; Insight Partners)Back
- Speechmatics · AI › speech recognitionSeries B · USD 62M · Jun 2022 (Susquehanna Growth Equity)Back
- Beamery · HR tech › talent managementSeries D · USD 50M · Feb 2022 (Ares), at more than USD 1bnBack
- Yapily · Fintech › open-banking APIsSeries B · USD 51M · Feb 2022 (Sapphire Ventures)Back
- Plentific · Proptech › property operations softwareSeries C · USD 100M · Aug 2021 (Brookfield Growth, Highland Europe)Back
Born in the United Kingdom, based elsewhere
Companies of British origin whose main operations are now abroad: not ranked, shown with the law governing their shares.
- Fluidstack · AI › GPU cloud and AI data centres
Founded in Oxford in 2017; HQ in New YorkLate-stage round · USD 1.5bn · Sep 2026 (Jane Street), at USD 18bnBack - Snyk · Cybersecurity › developer security
Founded in London and Tel Aviv in 2015; HQ in BostonSeries G · USD 196.5M · Dec 2022, at USD 7.4bnBack
Born elsewhere, based in the United Kingdom
Companies founded abroad whose main operations are in the United Kingdom.
- Rapyd · Fintech › payments infrastructure
Founded in Israel; HQ in London, R&D in Tel Aviv (ranked in Israel)Growth · USD 500M · Mar 2025 (equity and debt), at USD 4.5bn - HiBob · HR tech › HR platform for mid-sized companies
Founded in Tel Aviv; operational HQ in London (ranked in Israel)Growth · USD 166M · Sep 2026 (Salesforce Ventures; Farallon), at USD 3.2bn - FNZ · Fintech › wealth-management platforms
Founded in Wellington, New Zealand, in 2003; HQ in LondonEquity round · USD 650M · Nov 2025 (existing shareholders: CDPQ, Temasek, CPP Investments, Generation), no valuation set - Perk · Business software › travel and expense management
Founded in Barcelona; HQ moved to London and Boston in Nov 2025 (ranked in Spain)Series E · USD 200M · Jan 2025 (SoftBank Vision Fund 2, Atomico, General Catalyst), at USD 2.7bn
Not ranked
- Nscale · Spun out of Arkon Energy (Australia) in 2024; valued at USD 14.6bn in Mar 2026; NYSE listing filed in Sep 2026
- Kraken Technologies · Created inside Octopus Energy in 2017; minority stake sold at USD 8.65bn in Dec 2025, demerger under way
- Isomorphic Labs · Created inside Alphabet in 2021; raised USD 2.1bn in May 2026
- Octopus Energy · Energy supplier: its business does not rest on technology (its software arm, Kraken, is listed above)
- Quantinuum · Listed on Nasdaq in Jun 2026; Honeywell keeps about 48% of the votes
- Uforce · Ukrainian drone makers grouped under a London holding; main operations in Ukraine
- Faculty · Acquisition by Accenture announced in Jan 2026 (about USD 1bn)
- Oxford Ionics · Acquired by IonQ for about USD 1.075bn in Sep 2025
- Depop · Acquired by eBay from Etsy, completed in Jul 2026
- Curve · Acquisition by Lloyds Banking Group agreed in Nov 2025
- Freetrade · Acquired by IG Group in Apr 2025
- Deliveroo · Acquired by DoorDash in 2025
- Darktrace · Taken private by Thoma Bravo in Oct 2024
- Graphcore · Acquired by SoftBank in Jul 2024
- Builder.ai · Insolvency proceedings since May 2025
- Ziglu · In special administration since Jul 2025
- Komainu · Set up as a joint venture by Nomura, CoinShares and Ledger
- Gymshark · Fitness clothing brand: its business does not rest on technology
- Huel · Acquired by Danone in Mar 2026
The method in the United Kingdom
Calendar. Quarterly ranking, published on the 3rd of January, April, July and October. Next edition: January 3, 2027.
Eligibility: at least $1M raised in equity, non-listed company, main operations in the United Kingdom.
Partner sought. M&A boutique or capital raising adviser authorised by the FCA (Financial Conduct Authority).
Sources. British and international business and technology press (Financial Times, City A.M., Sky News, UKTN, Sifted, Tech.eu, Finextra, TechCrunch, Bloomberg, Reuters), HSBC Innovation Banking and Dealroom data, company and investor announcements.