Market map · Worldwide

AI training data market map

44 AI training data startups worldwide that have raised money in rounds we track, placed in 4 segments by what each says it does. Together they have raised $547M; the biggest segment is synthetic data, with 18 companies.

44startups on the map
4segments
$547Mraised between them
Labeling platformsmost funded segment

Synthetic data

18

Labeling platforms

14

Expert and human feedback

9

Data licensing and marketplaces

3

Segment by segment

Synthetic data

18 startups · $158M raised

  1. Tonic.aiTonic.ai is a technology company based in San Francisco, specializing in AI-driven synthetic data solutions.United States$35M
  2. Parallel DomainParallel Domain is a San Francisco-based company founded in 2017 that specializes in synthetic data and sensor simulation for autoUnited States$30M
  3. MOSTLY AIMOSTLY AI is a leader in creating high-fidelity, privacy-safe structured synthetic data using Generative AI.Austria$25M
  4. InvisiblyInvisibly is a technology company based in St.United States$20M
  5. K2ViewK2view Data Platform: AI-ready, protected, complete data instantly.United States$15M
  6. GGenGenAIGenGenAI develops synthetic data generation technologydesigned to advance AI learning.-$8.3M
  7. SKY ENGINE AISKY ENGINE AI is a London-based data science and technology company founded in 2018.United Kingdom$7.0M
  8. Rendered.aiRendered.ai is a Seattle-based Platform-as-a-Service (PaaS) company founded in 2019.United States$6.0M

Labeling platforms

14 startups · $300M raised

  1. LabelboxLabelbox is a data-centric AI company based in San Francisco, founded in 2018.United States$224M
  2. Centaur LabsCentaur Labs is a medical AI platform that offers medical data labeling services.United States$16M
  3. AlegionAlegion is a technology company based in Austin, Texas, that offers a fully managed AI training data platform and comprehensive seUnited States$16M
  4. Mighty AIMighty AI is a Seattle-based AI platform developer founded in 2014.United States$14M
  5. SapienSapien, also known as Sapien AI Corp., is a decentralized data foundry and Web3 data labeling platform founded in 2023 in San Francisco.United States$8.7M
  6. ScaleHubAI & HI for better data - at infinite scale, Managed Service, CrowdSourcing/Collective Intelligence Services for Data Entry & DataGermany$8.0M
  7. DatasaurDatasaur is a software company based in the San Francisco Bay Area, founded in 2019 by Ivan Lee.United States$4.0M
  8. besimple AIBesimple AI is a software company founded in 2025 and backed by Y Combinator.United States$3.0M

Expert and human feedback

9 startups · $79M raised

  1. Arlequin AIArlequin AI is a deep-tech startup based in Paris, founded in 2024.France$38M
  2. RapidataRapidata is a Zurich-based AI infrastructure company that offers a scalable, on-demand data labeling platform.Switzerland$8.5M
  3. Human ArchiveHuman Archive builds human data archiving platform with comprehensive dataset for training embodied AI and robotics systems.United States$8.2M
  4. Origin LabOrigin Lab is a technology company based in California that specializes in providing premium, rights-cleared multimodal training dUnited States$8.0M
  5. DefinigenGenerating pre-clinical human data for therapeutic candidates with in-vitro liver and metabolic disease models.United Kingdom$7.9M
  6. Pareto AIPareto.AI is a data research partner that specializes in human-centered data collection and expert annotation services for AI companies.United States$4.5M
  7. Poindexter LabsPoindexter Labs is a London-based AI data company that specializes in generating expert-created STEM training data for frontier AI models.United Kingdom$2.7M
  8. Feedback IntelligenceFeedback Intelligence is the next-gen RLHF for enterprise LLMs.United States$900K

Data licensing and marketplaces

3 startups · $10M raised

  1. Vanguard DefenseVanguard Defense is a data labeling firm that transforms defense telemetry into AI-ready datasets, which is powered by veterans.United States$6.3M
  2. Kled AIKled AI, developed by Nitrility Inc., is a data marketplace and mobile app that allows users to upload photos, videos, and other pUnited States$3.0M
  3. Co-oneCo-one is an Estonia-based AI and data platform founded in 2021.Estonia$1.1M

How this map is made. Every startup here has raised money in rounds we track. It joins the map when its sectors, read from its rounds, or the opening of its own description say it works in AI training data, and goes to the first segment whose words it carries. Each segment shows its best-funded first. Rebuilt nightly; updated 15 November 2026.

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