About the AI Data Labeling & Annotation Market Map
This market map tracks 96 startups across 8 categories in the AI Data Labeling & Annotation landscape. Annotation platforms, synthetic data generators, RLHF pipelines, and data curation tools powering the training data supply chain behind every AI model. Curated by Hartmann Capital's venture research team, it provides a comprehensive view of the companies building in this space, from early-stage startups to growth-stage leaders.
Categories & Companies
Data Labeling Platforms(15)
Scale AI (Series F, $1600M) · Labelbox (Series D, $189M) · Appen (Public) · Toloka (Series A, $72M) · CloudFactory (Private Equity) · Sama (Series B, $70M) · SuperAnnotate (Series B, $57M) · TaskUs (Public) · TELUS International (Public) · Sapien (Seed, $15.5M) · LXT (Private) · Cogito Tech (Private) · Shaip (Private) · Labellerr (Seed) · Keymakr (Private)
Synthetic Data Generation(14)
Gretel (Acquired, $65.5M) · Mostly AI (Series B, $31M) · Synthesis AI (Series A, $25.4M) · Datagen (Series B, $70M) · Tonic.ai (Series B, $43M) · Hazy (Acquired, $28.3M) · Parallel Domain (Series A, $22.5M) · YData (Seed, $8M) · Rendered.ai (Seed, $6M) · CVEDIA (Seed, $11M) · Rockfish Data (Seed, $6M) · DataCebo (Seed, $8.5M) · Fairgen (Seed, $8M) · Betterdata (Seed, $1.6M)
RLHF & Human Feedback(12)
Surge AI (Bootstrapped) · Invisible Technologies (Series B, $144M) · Prolific (Series A, $33.8M) · Turing (Series D, $87M) · Coactive AI (Series A, $14M) · Kolena (Series A, $12M) · Outlier AI (Private) · Pareto AI (Seed, $4.5M) · Alignerr (Private) · Adaptive (Seed, $20M) · Welocalize (Private) · Datasaur (Seed, $7.9M)
Data Quality & Curation(12)
Snorkel AI (Series D, $238M) · Cleanlab (Acquired, $30M) · Argilla (Acquired, $14M) · Activeloop (Seed, $9M) · Voxel51 (Series A, $23M) · Dataloop (Series B, $31M) · Lightly AI (Series A, $17M) · DatologyAI (Series A, $57.6M) · Galileo AI (Series B, $68M) · Anomalo (Series B, $82M) · Deepchecks (Seed, $14M) · Nexdata (Private)
Domain-Specific Annotation(13)
Encord (Series B, $45M) · V7 Labs (Series A, $40M) · iMerit (Series B, $24.3M) · Segments.ai (Seed, $5M) · Clarifai (Series C, $100M) · Kili Technology (Series A, $25M) · Label Studio (Series A, $25M) · MD.ai (Series A, $4M) · BasicAI (Seed) · Mindkosh (Private) · Hasty.ai (Seed, $4.7M) · Quadrant (Private) · World Intelligence
Data Collection & Web Scraping for AI(14)
Bright Data (Private Equity) · Oxylabs (Private) · Apify (Seed, $3M) · Diffbot (Series A, $12M) · Exa (Series A, $22M) · Firecrawl (Seed, $3M) · Zyte (Series B, $35M) · Common Crawl (Non-profit) · Browse AI (Seed, $2.8M) · ScrapeHero (Private) · Crawlbase (Private) · Scrapfly (Private) · Mozenda (Private) · ParseHub (Private)
AI Data Marketplace & Licensing(8)
Protege (Series A, $65M) · Defined.ai (Series B, $80M) · Human Native AI (Seed, $3.5M) · Trainspot (Private) · Dappier (Seed, $2M) · Datarade (Seed, $1M) · Narrative (Series A, $12M) · Dawex (Series A, $11M)
Automated Data Pipeline & Feature Engineering(8)
Tecton (Acquired, $160M) · Hopsworks (Series B, $13.8M) · Featureform (Seed, $8M) · Rasgo (Series A, $25M) · Feast (Open Source) · Feathr (Open Source) · Molecula (Series A, $17.6M) · Continual (Series A, $14.5M)
Frequently Asked Questions
- What is the AI Data Labeling & Annotation market map?
- The AI Data Labeling & Annotation market map is a curated overview of 96 startups across 8 categories : Data Labeling Platforms, Synthetic Data Generation, RLHF & Human Feedback, Data Quality & Curation, Domain-Specific Annotation, Data Collection & Web Scraping for AI, AI Data Marketplace & Licensing, Automated Data Pipeline & Feature Engineering. Annotation platforms, synthetic data generators, RLHF pipelines, and data curation tools powering the training data supply chain behind every AI model. It is maintained by Hartmann Capital's venture research team.
- How many startups are tracked?
- This map currently tracks 96 startups across 8 categories: Data Labeling Platforms (15 companies), Synthetic Data Generation (14 companies), RLHF & Human Feedback (12 companies), Data Quality & Curation (12 companies), Domain-Specific Annotation (13 companies), Data Collection & Web Scraping for AI (14 companies), AI Data Marketplace & Licensing (8 companies), Automated Data Pipeline & Feature Engineering (8 companies).
- How can I submit my startup?
- You can submit your startup for inclusion by visiting the submission page. Submissions are reviewed by Hartmann Capital's research team.
- How often is this map updated?
- The AI Data Labeling & Annotation market map is updated on a rolling basis as new startups emerge, companies raise funding rounds, or the competitive landscape shifts.