Sector portfolio · VC firm · United Kingdom

Index Ventures' AI portfolio

Index Ventures has backed 126 AI startups in rounds we track, $49B between them, shown by the stage each has reached. The best-funded is Scale Ai.

126startups backed
6stages
$49Braised between them
Series C and laterbiggest stage

Index Ventures's whole portfolioIndex Ventures's profile

Series C and later

31

+7 more

Pre-seed and seed

29

+5 more

Series A

27

+3 more

Series B

26

+2 more

Stage not reported

10

Growth

3

Segment by segment

Series C and later

31 startups · $36B raised

  1. Scale AIScale delivers proven data, evaluations, and outcomes to AI labs, governments, and the Fortune 500.United States$15B
  2. Mistral AIMistral AI is an AI startup that provides developers and businesses access to open and portable generative AI solutions.France$7.5B
  3. CohereCohere is a Canadian multinational artificial intelligence company founded in 2019, specializing in foundational large language moCanada$5.6B
  4. Fireworks AIFireworks AI is a generative AI infrastructure platform that specializes in delivering fast inference and full-parameter training United States$1.7B
  5. InstinctInstinct® is a rapidly growing, family-owned marketer and manufacturer of science-based 100% natural pet food for dogs and cats.United States$1.3B
  6. TemporalTemporal is a financial services and market infrastructure company focused on enhancing efficiency in financial markets, particulaUnited States$996M
  7. Chai DiscoveryChai Discovery is an artificial intelligence biotechnology company based in San Francisco, California, founded in March 2024.United States$530M
  8. AlgoliaAlgolia is the Search-as-a-Service platform that enables companies to deliver fast and relevant digital experiences that drive real results.United States$282M

Pre-seed and seed

29 startups · $2.3B raised

  1. Ineffable IntelligenceIneffable Intelligence develops machine learning systems that learn through interaction and experience.United Kingdom$1.1B
  2. PaidPaid is a web-developing company that provides shipping solutions by building website, collect payments, and compare shipping rates.United States$297M
  3. PersonaPersona is the next generation personalized nutrition program, helping consumers take the guesswork out of the dietary supplement aisle.United States$211M
  4. EnigmaWe are an open platform with blockchain-based technology and simple tools for artists and creators to grow alongside fans, investoUnited States$166M
  5. EEdenUnited States$104M
  6. AsteliaAstelia is an AI-native exposure management platform that enables organizations to focus exclusively on vulnerabilities that are tUnited States$60M
  7. FFloraUnited States$56M
  8. D/dev/agentsUnited States$56M

Series A

27 startups · $2.7B raised

  1. Flapping AirplanesFlapping Airplanes is an AI research lab dedicated to developing data-efficient training methods for artificial intelligence.United States$1.2B
  2. GGlowUnited States$306M
  3. TesslTessl is a London-based company founded in 2024 by Guy Podjarny, focusing on Agent Enablement and AI-Native Development.United Kingdom$250M
  4. 7AI7AI is a Boston-based cybersecurity company that has developed the first agentic security platform.United States$166M
  5. AltaInvest or sell private companies, funds and alternative assets with Alta, Southeast Asia’s largest marketplace for alternative assUnited States$116M
  6. IdeogramIdeogram is an artificial intelligence company based in Toronto, Ontario, specializing in generative media, particularly text-to-iCanada$80M
  7. ConductConduct is a London-based enterprise AI company founded in 2024.United Kingdom$72M
  8. CartesiaCartesia is an artificial intelligence company founded in September 2023 in San Francisco, California, by a team of researchers anUnited States$64M

Series B

26 startups · $4.4B raised

  1. PIPhysical IntelligenceUnited States$2.0B
  2. SimileSimile is the simulation company, built for leading enterprises.United States$600M
  3. CloakedCloaked is a consumer-first privacy company founded in 2020 by brothers Arjun and Abhijay Bhatnagar.United States$400M
  4. HebbiaHebbia is an AI platform that helps companies transform heaps of information into insights.United States$130M
  5. MinIOMinIO is a high-performance, Kubernetes-native object storage system that serves as a foundation for enterprise AI.United States$123M
  6. Parallel Web SystemsParallel Web Systems is an AI infrastructure company focused on enhancing how AI agents interact with the web.United States$100M
  7. TwelveLabsTwelveLabs is a San Francisco-based artificial intelligence company founded in 2021 that specializes in video-native foundation moUnited States$100M
  8. CasapCasap is a San Francisco-based FinTech company founded in 2023, specializing in AI-powered dispute automation and fraud prevention.United States$81M

Stage not reported

10 startups · $2.5B raised

  1. MotiveMotive builds technology to improve the safety, productivity and profitability of businesses that power the physical economy.United States$1.4B
  2. SylveraSylvera is an independent carbon intelligence platform based in London, UK, founded in 2020 by Allister Furey and Sam Gill.United Kingdom$308M
  3. DeepLDeepL is a deep-learning company that engages in translating texts and full document files.Germany$300M
  4. NautoNauto is an AI company founded in 2015 and based in Palo Alto, California.United States$159M
  5. GongGong unlocks reality to help people and companies reach their full potential.United States$65M
  6. Lightning AILightning AI is an online marketing platform.United States$50M
  7. Frame SecurityFrame Security is an AI‐driven cybersecurity company focused on human‐risk management and security‐awareness training.United States$50M
  8. Built TechnologiesBuilt Technologies is an enterprise technology company that provides cloud-based construction lending software.United States$31M

Growth

3 startups · $528M raised

  1. BehavoxBehavox is a London-based AI company founded in 2014, specializing in compliance and risk management for financial services and reUnited Kingdom$245M
  2. LiveKitLiveKit offers open source frameworks and a cloud platform for building voice, video, and physical AI agents.United States$145M
  3. MMirageUnited States$138M

How this map is made. Every startup here works in AI and has raised money in a round we track that names Index Ventures as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.

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