# Y Combinator's Investments in United Kingdom: 117 Startups by Sector (2026)

> The 117 startups in the United Kingdom that Y Combinator has backed, by sector: AI, Fintech and B2B and more. $4.4B raised. Updated nightly.

Source: https://millionrounds.com/portfolio-maps/y-combinator-investments-united-kingdom (Millionrounds; every figure on the page links to its filing or article)

## AI

39

- [Recursive](https://millionrounds.com/company/recursive)
- [Cera](https://millionrounds.com/company/cera)
- [Sona](https://millionrounds.com/company/sona)
- [Stability AI](https://millionrounds.com/company/stability-ai)
- [Easol](https://millionrounds.com/company/easol)
- [*T* Trace](https://millionrounds.com/company/trace)
- [Mesh-AI](https://millionrounds.com/company/mesh-ai)
- [Relace](https://millionrounds.com/company/relace)
- [ScopeAI](https://millionrounds.com/company/scopeai)
- [Meticulous](https://millionrounds.com/company/meticulous)
- [Elyos AI](https://millionrounds.com/company/elyos-ai)
- [*B* Bluedot](https://millionrounds.com/company/bluedot)
- [Lightdash](https://millionrounds.com/company/lightdash)
- [Sidekick](https://millionrounds.com/company/sidekick)
- [CarbonChain](https://millionrounds.com/company/carbonchain)
- [Frontier Computing](https://millionrounds.com/company/frontier-computing)
- [*E* Expanse](https://millionrounds.com/company/expanse)
- [atla](https://millionrounds.com/company/atla)
- [SigmaOS](https://millionrounds.com/company/sigmaos)
- [Humanloop](https://millionrounds.com/company/humanloop)
- [Artificial Societies](https://millionrounds.com/company/artificial-societies)
- [Wondercraft](https://millionrounds.com/company/wondercraft)
- [Plexe AI](https://millionrounds.com/company/plexe-ai)
- [RunLocal AI](https://millionrounds.com/company/runlocal-ai)

+15 more

## Fintech

15

- [GoCardless](https://millionrounds.com/company/gocardless)
- [Carmoola](https://millionrounds.com/company/carmoola)
- [TRIVER](https://millionrounds.com/company/triver)
- [Aspora](https://millionrounds.com/company/aspora)
- [Lantern](https://millionrounds.com/company/lantern)
- [Sift](https://millionrounds.com/company/sift)
- [Thought Machine](https://millionrounds.com/company/thought-machine)
- [*HR* Hidden Road](https://millionrounds.com/company/hidden-road)
- [nsave](https://millionrounds.com/company/nsave)
- [Seawise Capital](https://millionrounds.com/company/seawise-capital)
- [Zeti](https://millionrounds.com/company/zeti)
- [Prosper](https://millionrounds.com/company/prosper)
- [Zavo](https://millionrounds.com/company/zavo)
- [Nomod](https://millionrounds.com/company/nomod)
- [Verto](https://millionrounds.com/company/verto)

## B2B

10

- [*S* Sequence](https://millionrounds.com/company/sequence)
- [Trigger.dev](https://millionrounds.com/company/trigger-dev)
- [Happl](https://millionrounds.com/company/happl)
- [Payable](https://millionrounds.com/company/payable)
- [Argus](https://millionrounds.com/company/argus)
- [Aklimate](https://millionrounds.com/company/aklimate)
- [Evorra](https://millionrounds.com/company/evorra)
- [Quary](https://millionrounds.com/company/quary)
- [Aglide](https://millionrounds.com/company/aglide)
- [Tranch](https://millionrounds.com/company/tranch)

## Advertising & Adtech

8

- [Ceros](https://millionrounds.com/company/ceros)
- [Velocity](https://millionrounds.com/company/velocity)
- [Permutive](https://millionrounds.com/company/permutive)
- [*Z* Zyper](https://millionrounds.com/company/zyper)
- [Lumen Research](https://millionrounds.com/company/lumen-research)
- [LightBox TV](https://millionrounds.com/company/lightbox-tv)
- [Her](https://millionrounds.com/company/her)
- [Picnic Media Limited](https://millionrounds.com/company/picnic-media-limited)

## Biotech

7

- [Ochre Bio](https://millionrounds.com/company/ochre-bio)
- [*W* Wren](https://millionrounds.com/company/wren)
- [SAVA](https://millionrounds.com/company/sava)
- [Mytos](https://millionrounds.com/company/mytos)
- [Sixfold Bioscience](https://millionrounds.com/company/sixfold-bioscience)
- [BIOS](https://millionrounds.com/company/bios)
- [Metofico](https://millionrounds.com/company/metofico)

## IT Services

7

- [Prolific](https://millionrounds.com/company/prolific)
- [Abatable](https://millionrounds.com/company/abatable)
- [Reelables](https://millionrounds.com/company/reelables)
- [Versori](https://millionrounds.com/company/versori)
- [Vouchsafe](https://millionrounds.com/company/vouchsafe)
- [SchemeFlow](https://millionrounds.com/company/schemeflow)
- [TaskPipes](https://millionrounds.com/company/taskpipes)

## Consumer Apps

7

- [Raycast](https://millionrounds.com/company/raycast)
- [Minimum](https://millionrounds.com/company/minimum)
- [Linkup](https://millionrounds.com/company/linkup)
- [Devyce](https://millionrounds.com/company/devyce)
- [Audiences](https://millionrounds.com/company/audiences)
- [Camlist](https://millionrounds.com/company/camlist)
- [Forfeit](https://millionrounds.com/company/forfeit)

## Healthtech

7

- [Nourish](https://millionrounds.com/company/nourish)
- [*BH* Big Health](https://millionrounds.com/company/big-health)
- [Valink Therapeutics](https://millionrounds.com/company/valink-therapeutics)
- [Cleancard](https://millionrounds.com/company/cleancard)
- [Mable (Neurolytic Healthcare)](https://millionrounds.com/company/mable-neurolytic-healthcare)
- [Klarismo](https://millionrounds.com/company/klarismo)
- [Cambridge Mask Co](https://millionrounds.com/company/cambridge-mask-co)

## Cleantech

5

- [Converge](https://millionrounds.com/company/converge)
- [Itero](https://millionrounds.com/company/itero)
- [MoltexFLEX](https://millionrounds.com/company/moltexflex)
- [Seabound](https://millionrounds.com/company/seabound)
- [Heimdal](https://millionrounds.com/company/heimdal)

## Developer Tools

4

- [FIDEL API](https://millionrounds.com/company/fidel-api)
- [Dataform](https://millionrounds.com/company/dataform)
- [Stitch Technologies](https://millionrounds.com/company/stitch-technologies)
- [cubic](https://millionrounds.com/company/cubic)

## Internet

4

- [*S* Songkick](https://millionrounds.com/company/songkick)
- [*FL* Fat Lama](https://millionrounds.com/company/fat-lama)
- [*M* Muzmatch](https://millionrounds.com/company/muzmatch)
- [SimpleX Chat](https://millionrounds.com/company/simplex-chat)

## Web3 & Crypto

4

- [Tempo](https://millionrounds.com/company/tempo)
- [Potion Labs](https://millionrounds.com/company/potion-labs)
- [*Z* Zinc](https://millionrounds.com/company/zinc)
- [LIQUITY](https://millionrounds.com/company/liquity)

## Segment by segment

### AI

39 startups · $1.3B raised

- [**Recursive**](https://millionrounds.com/company/recursive) Recursive self-improving superintelligence to automate knowledge discovery. United Kingdom $650M
- [**Cera**](https://millionrounds.com/company/cera) Cera is Europe's largest digital-first home healthcare company, providing technology-enabled care, nursing, telehealth, and repeat United Kingdom $168M
- [**Sona**](https://millionrounds.com/company/sona) Sona is a workforce management platform for frontline enterprises like care homes, restaurants, and hotels. United Kingdom $79M
- [**Stability AI**](https://millionrounds.com/company/stability-ai) Stability AI is an artificial intelligence-driven visual art startup that designs and implements open AI tools. United Kingdom $76M
- [**Easol**](https://millionrounds.com/company/easol) easol is a joint venture of INTREAL and control IT. United Kingdom $55M
- [*T* **Trace**](https://millionrounds.com/company/trace) Artist led curation and publishing project concerned mainly with photography. United Kingdom $54M
- [**Mesh-AI**](https://millionrounds.com/company/mesh-ai) Mesh-AI is a consulting firm that offers data engineering, software, artificial intelligence, and consulting services. United Kingdom $30M
- [**Relace**](https://millionrounds.com/company/relace) Relace AI platform generates custom made LLMs to create better models. United Kingdom $25M

### Fintech

15 startups · $1.4B raised

- [**GoCardless**](https://millionrounds.com/company/gocardless) GoCardless helps 75,000+ businesses get paid on time. United Kingdom $442M
- [**Carmoola**](https://millionrounds.com/company/carmoola) Cruise through car finance. United Kingdom $409M
- [**TRIVER**](https://millionrounds.com/company/triver) Triver is a London-based fintech company that specializes in cash flow financing for small and medium-sized enterprises (SMEs). United Kingdom $174M
- [**Aspora**](https://millionrounds.com/company/aspora) Aspora is a cross-border finance and remittance company that helps non-resident Indians (NRIs) and global Indians manage their mon United Kingdom $103M
- [**Lantern**](https://millionrounds.com/company/lantern) Lantern helps capture the essence of a brand through strategy and design, creating stories that resonate in a connecting style. United Kingdom $67M
- [**Sift**](https://millionrounds.com/company/sift) Sift applies insights from a global network of data to detect fraud and increase positive user experience. United Kingdom $64M
- [**Thought Machine**](https://millionrounds.com/company/thought-machine) Our team’s mission is a bold one – to create technology that can run the world’s banks according to the best designs and software United Kingdom $62M
- [*HR* **Hidden Road**](https://millionrounds.com/company/hidden-road) Hidden Road is the global credit network for institutional investors and provides easy access to both traditional and digital markets. United Kingdom $50M

### B2B

10 startups · $110M raised

- [*S* **Sequence**](https://millionrounds.com/company/sequence) Sequence is a creative digital agency developing brands, digital products and connected experiences that engage people and build businesses. United Kingdom $73M
- [**Trigger.dev**](https://millionrounds.com/company/trigger-dev) Trigger.dev is an open-source platform that enables developers to build and deploy fully-managed AI agents and event-driven workfl United Kingdom $17M
- [**Happl**](https://millionrounds.com/company/happl) Happl, based in London, is an AI-powered global employee benefits and engagement platform founded in 2020 by Ben Towers and Mike Rose. United Kingdom $8.0M
- [**Payable**](https://millionrounds.com/company/payable) Payable is the best way to pay your contractors and stay compliant. United Kingdom $6.1M
- [**Argus**](https://millionrounds.com/company/argus) Argus develops a platform designed to automate the employee trade compliance process. United Kingdom $2.8M
- [**Aklimate**](https://millionrounds.com/company/aklimate) Aklimate is an IT company that develops carbon management tools to track and reduce supply chain emissions. United Kingdom $1.1M
- [**Evorra**](https://millionrounds.com/company/evorra) Evorra is a privacy-first B2B SaaS data clean room platform and marketplace based in Mayfair, London. United Kingdom $1.0M
- [**Quary**](https://millionrounds.com/company/quary) Accessible data transformations United Kingdom $500K

### Advertising & Adtech

8 startups · $317M raised

- [**Ceros**](https://millionrounds.com/company/ceros) Ceros is a cloud-based, no-code platform that enables marketers, designers, and creative teams to create interactive digital experiences. United Kingdom $120M
- [**Velocity**](https://millionrounds.com/company/velocity) Our mission at Velocity is to help founders go further, faster. United Kingdom $105M
- [**Permutive**](https://millionrounds.com/company/permutive) Permutive is a London-based technology company that specializes in predictive data collaboration for the open internet. United Kingdom $76M
- [*Z* **Zyper**](https://millionrounds.com/company/zyper) United Kingdom $6.5M
- [**Lumen Research**](https://millionrounds.com/company/lumen-research) Lumen is a specialist eye tracking research agency based in London, who help optimise advertising across a number of platforms. United Kingdom $3.8M
- [**LightBox TV**](https://millionrounds.com/company/lightbox-tv) LightBox TV is a UK-based AdTech and Media Technology company that focuses on transforming television advertising through AI-drive United Kingdom $2.0M
- [**Her**](https://millionrounds.com/company/her) HER is a dating application for FLINTA & queer women, allowing users to connect with each other and their community. United Kingdom $2.0M
- [**Picnic Media Limited**](https://millionrounds.com/company/picnic-media-limited) Picnic is a provider of advertising products for various KPIs. United Kingdom $1.3M

### Biotech

7 startups · $104M raised

- [**Ochre Bio**](https://millionrounds.com/company/ochre-bio) Ochre Bio is a biotechnology company based in Oxford, United Kingdom, founded in 2019. United Kingdom $30M
- [*W* **Wren**](https://millionrounds.com/company/wren) United Kingdom $21M
- [**SAVA**](https://millionrounds.com/company/sava) Sava is a multi-management platform that provides an unlimited number of virtual cards as well as automated accounting reconciliation. United Kingdom $21M
- [**Mytos**](https://millionrounds.com/company/mytos) Mytos, also known as Mytos Bio, is a London-based biotechnology company founded in 2016 by Ali Afshar and Ignacio Willats. United Kingdom $19M
- [**Sixfold Bioscience**](https://millionrounds.com/company/sixfold-bioscience) Sixfold Bioscience develops and researches on biotechnology advances for RNA therapies. United Kingdom $8.3M
- [**BIOS**](https://millionrounds.com/company/bios) BIOS Middle East, a ZainTECH company is an award-winning Managed Service & Cloud Provider established in 2002 in the UAE and commi United Kingdom $5.5M
- [**Metofico**](https://millionrounds.com/company/metofico) Metofico is a life science data science company based in London, founded in 2021. United Kingdom $500K

### IT Services

7 startups · $64M raised

- [**Prolific**](https://millionrounds.com/company/prolific) Prolific Ltd is a London-based technology company founded in 2014 by Phelim Bradley and Ekaterina Damer. United Kingdom $32M
- [**Abatable**](https://millionrounds.com/company/abatable) Abatable is a London-based technology-enabled platform focused on carbon procurement and market intelligence. United Kingdom $14M
- [**Reelables**](https://millionrounds.com/company/reelables) Reelables is a technology company founded in 2018, based in London, United Kingdom. United Kingdom $10M
- [**Versori**](https://millionrounds.com/company/versori) Versori is a technology group that develops and maintains software products for business and enterprise use. United Kingdom $5.5M
- [**Vouchsafe**](https://millionrounds.com/company/vouchsafe) Vouchsafe is a London-based technology company founded in 2022, specializing in identity verification and anti-fraud solutions. United Kingdom $1.3M
- [**SchemeFlow**](https://millionrounds.com/company/schemeflow) SchemeFlow is an AI-powered technology company based in London, UK, that specializes in automating technical report generation for United Kingdom $500K
- [**TaskPipes**](https://millionrounds.com/company/taskpipes) TaskPipes automates repetitive data processing tasks. United Kingdom $120K

### Consumer Apps

7 startups · $66M raised

- [**Raycast**](https://millionrounds.com/company/raycast) Raycast is a London-based productivity software company founded in 2020 by former Facebook engineers Thomas Paul Mann and Petr Nikolaev. United Kingdom $30M
- [**Minimum**](https://millionrounds.com/company/minimum) Minimum has developed an Enterprise-grade climate impact modelling system, specializing in serving large, complex, distributed enterprises. United Kingdom $13M
- [**Linkup**](https://millionrounds.com/company/linkup) Linkup is a French technology startup founded in 2024 and based in Paris. United Kingdom $10M
- [**Devyce**](https://millionrounds.com/company/devyce) Devyce creates a VoIP operating system that offers communication system with flexibility, scalability, and dependability. United Kingdom $8.1M
- [**Audiences**](https://millionrounds.com/company/audiences) AUDIENCES is an independent enterprise software company based in London, UK. United Kingdom $2.8M
- [**Camlist**](https://millionrounds.com/company/camlist) Camlist is a mobile app that allows user to buy and sell anything related to pets, pet services, and pet accessories. United Kingdom $1.3M
- [**Forfeit**](https://millionrounds.com/company/forfeit) Forfeit lets you put real money on your habits. United Kingdom $500K

### Healthtech

7 startups · $321M raised

- [**Nourish**](https://millionrounds.com/company/nourish) Nourish connects people with a Registered Dietitian via telehealth and gets it covered by their health insurance. United Kingdom $173M
- [*BH* **Big Health**](https://millionrounds.com/company/big-health) United Kingdom $125M
- [**Valink Therapeutics**](https://millionrounds.com/company/valink-therapeutics) Valink Therapeutics is a biotechnology company focused on developing innovative bispecific antibody-drug conjugates (bsADCs) and c United Kingdom $12M
- [**Cleancard**](https://millionrounds.com/company/cleancard) We are combining synthetic biology and artificial intelligence to make cancer screening as easy as a pregnancy test. United Kingdom $5.3M
- [**Mable (Neurolytic Healthcare)**](https://millionrounds.com/company/mable-neurolytic-healthcare) Mable Health is a Canadian company focused on mobility care and musculoskeletal health. United Kingdom $3.2M
- [**Klarismo**](https://millionrounds.com/company/klarismo) Fully-automated Quantitative MR Image Analysis. United Kingdom $2.5M
- [**Cambridge Mask Co**](https://millionrounds.com/company/cambridge-mask-co) Cambridge Mask Co is a UK-based company founded in 2014 that specializes in designing and selling reusable face respirators. United Kingdom $350K

### Cleantech

5 startups · $78M raised

- [**Converge**](https://millionrounds.com/company/converge) Construction Technology. United Kingdom $69M
- [**Itero**](https://millionrounds.com/company/itero) Itero is a technology company based in London, United Kingdom, specializing in chemical recycling. United Kingdom $6.1M
- [**MoltexFLEX**](https://millionrounds.com/company/moltexflex) MoltexFLEX is developing the advanced small modular FLEX reactor and GridReserve energy storage system. United Kingdom $1.7M
- [**Seabound**](https://millionrounds.com/company/seabound) Seabound is a carbon capture technology company. United Kingdom $1.5M
- [**Heimdal**](https://millionrounds.com/company/heimdal) Heimdal is a climate technology company that specializes in direct air capture (DAC) technology to remove CO2 from the atmosphere. United Kingdom $40K

### Developer Tools

4 startups · $68M raised

- [**FIDEL API**](https://millionrounds.com/company/fidel-api) Fidel API is a global financial infrastructure platform that provides developers with a suite of APIs to connect payment cards, su United Kingdom $65M
- [**Dataform**](https://millionrounds.com/company/dataform) Dataform manages data pipelines in data warehouse. United Kingdom $2.0M
- [**Stitch Technologies**](https://millionrounds.com/company/stitch-technologies) Stitch Technologies is a U.S.-focused company dedicated to enhancing manufacturing through sustainable practices and advanced technology. United Kingdom $500K
- [**cubic**](https://millionrounds.com/company/cubic) Cubic3 is a Dublin-based leader in software-defined vehicle (SDV) connectivity, specializing in advanced IoT solutions and cloud platforms. United Kingdom $500K

### Internet

4 startups · $66M raised

- [*S* **Songkick**](https://millionrounds.com/company/songkick) United Kingdom $48M
- [*FL* **Fat Lama**](https://millionrounds.com/company/fat-lama) United Kingdom $10M
- [*M* **Muzmatch**](https://millionrounds.com/company/muzmatch) United Kingdom $7.0M
- [**SimpleX Chat**](https://millionrounds.com/company/simplex-chat) SimpleX Chat is an open-source, decentralized communication network based in London, UK. United Kingdom $1.3M

### Web3 & Crypto

4 startups · $538M raised

- [**Tempo**](https://millionrounds.com/company/tempo) Tempo is a home fitness platform, combining equipment, training guidance, and social motivation with 3D sensors and artificial intelligence. United Kingdom $514M
- [**Potion Labs**](https://millionrounds.com/company/potion-labs) Potion Labs is a base layer for a wide range of asset risk-management applications. United Kingdom $12M
- [*Z* **Zinc**](https://millionrounds.com/company/zinc) United Kingdom $6.3M
- [**LIQUITY**](https://millionrounds.com/company/liquity) Liquity is a decentralized borrowing protocol on Ethereum that allows users to take out 0% interest loans using Ether (ETH) and Li United Kingdom $6.2M

**How this map is made.** Every startup here has raised money in a round we track that names Y Combinator as an investor and is based in United Kingdom. Each sits under its main sector, read from its rounds, and each shows its best-funded first. Rebuilt nightly; updated 15 November 2026.

## More portfolio maps

[All portfolios](https://millionrounds.com/portfolio-maps)

[Investments abroad **Y Combinator's investments in Canada** 87 startups · $6.9B](https://millionrounds.com/portfolio-maps/y-combinator-investments-canada)[Investments abroad **Y Combinator's investments in India** 61 startups · $1.9B](https://millionrounds.com/portfolio-maps/y-combinator-investments-india)[Investments abroad **Y Combinator's investments in Singapore** 37 startups · $632M](https://millionrounds.com/portfolio-maps/y-combinator-investments-singapore)[Investments abroad **Y Combinator's investments in France** 37 startups · $325M](https://millionrounds.com/portfolio-maps/y-combinator-investments-france)[Investments abroad **Y Combinator's investments in Brazil** 24 startups · $656M](https://millionrounds.com/portfolio-maps/y-combinator-investments-brazil)[Investments abroad **Y Combinator's investments in Germany** 23 startups · $294M](https://millionrounds.com/portfolio-maps/y-combinator-investments-germany)

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