You asked about Data Labeling
271 people built something like it. 0 are gone.
That is 0% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2019-01-01 | YCCentaur We Create Superior Data By Making Annotation Competitive · centaur.ai | still up |
| 2022-01-01 | YCSieve The multimodal data lab · sievedata.com | still up |
| 2022-01-01 | YCSpade Spade is the data and AI platform for modern finance. · spade.com | still up |
| 2025-01-01 | Applied research lab curating data solutions for foundation model… · afterquery.com | still up |
| 2024-06-01 | YCUnbound Use AI tools without fear of data leakage · getunbound.ai | still up |
| 2025-09-01 | YCSciloop Expert STEM reasoning data for frontier AI labs. · sciloop.dev | still up |
| 2021-06-01 | YCLightly Help ML teams label the right data · lightly.ai | still up |
| 2025-06-01 | YCLiva AI Audio & Video Data · theliva.ai | still up |
| 2026-01-01 | YCShofo The World's Largest Video Library · shofo.ai | still up |
| 2026-06-01 | YCDatoric The secure training data R&D engine for physical AI · datoric.com | still up |
| 2026-06-01 | YCCoArena The biggest crowdsourced benchmark for Computer-Use · coarena.ai | still up |
| 2026-06-01 | YCMarkov Expert computer-use data for frontier AI labs · markovstudios.com | still up |
| 2026-06-01 | Virtual Reality for Training Robots · movingatoms.ai | still up |
| 2013-01-01 | YCFivetran The leader in automated data movement · fivetran.com | still up |
| 2016-06-01 | YCScale AI Data-centric infrastructure to accelerate the development of AI · scale.com | still up |
| 2022-01-01 | Data driven neobank for SMBs in LATAM · kapital.mx | still up |
| 2009-06-01 | YCMixpanel Mixpanel is event analytics for builders that need answers. · mixpanel.com | still up |
| 2019-06-01 | YCTRM Labs TRM is building a safer world for billions of people. · trmlabs.com | still up |
| 2016-01-01 | AI + Robotics for the Built World · geckorobotics.com | still up |
| 2013-01-01 | The platform for building and operating time series applications. · influxdata.com | still up |
| 2014-06-01 | Rebuilding data in advertising to protect privacy · permutive.com | still up |
| 2019-06-01 | YCProlific Making diverse, high-quality data easily available to anyone, anywhere · prolific.com | still up |
| 2015-01-01 | YCMezmo Observability platform to control all of your log data · mezmo.com | still up |
| 2011-01-01 | The cloud-native, operational database built for speed and scale. · singlestore.com | still up |
| 2021-01-01 | YCEncord The data layer for physical AI · encord.com | still up |
| 2020-06-01 | YCSupabase Build in a weekend. Scale to millions. · supabase.com | still up |
| 2019-06-01 | Customer data collection, safeguarding, & activation for healthcare · freshpaint.io | still up |
| 2017-01-01 | YCNanoNets Automatic Data Extraction · nanonets.com | still up |
| 2015-06-01 | The only R&D data cloud for life sciences · tetrascience.com | still up |
| 2016-06-01 | Bridging a world of consumer-permissioned credit data · novacredit.com | still up |
| 2026-01-01 | Physical AI data lab · humanarchive.ai | still up |
| 2020-01-01 | YCAirbyte Context layer for production-grade AI agents · airbyte.com | still up |
| 2020-06-01 | YCFinch Finch is the Employment Data Platform · tryfinch.com | still up |
| 2021-06-01 | YCAnakin One API to get clean data from any website for your AI agents at scale · anakin.io | still up |
| 2020-06-01 | At-Home health monitoring with silicon photonic chips for data centers · siphoxhealth.com | still up |
| 2021-06-01 | YCDatlo Datlo helps companies increase sales and expand through data · datlo.com | still up |
| 2020-01-01 | YCDatasaur Datasaur builds private AI/agents for enterprise/government · datasaur.ai | still up |
| 2022-06-01 | YCQuindar Datadog for Space · quindar.space | still up |
| 2015-06-01 | We use human data and AI to develop better drugs faster. · vergegenomics.com | still up |
| 2017-01-01 | Neural interfaces to understand and use nerve data in medicine. · bios.health | still up |
| 2020-01-01 | YCMindsDB Connect, Unify, Respond to any data, anywhere with human-level… · mindsdb.com | still up |
| 2018-01-01 | PROVEN is using AI, data and personalization to disrupt CPG · provenskincare.com | still up |
| 2022-01-01 | Compliant-Ready AI for the Enterprise · dynamo.ai | still up |
| 2021-01-01 | YCSigNoz Open source alternative to DataDog · signoz.io | still up |
| 2019-06-01 | Best in class company intelligence data. · predictleads.com | still up |
| 2017-06-01 | sourceress.com | still up |
| 2022-01-01 | YCLanceDB Open-source, serverless vectordb for production-scale generative AI · lancedb.com | still up |
| 2024-01-01 | Accelerate Medication Access with AI · runtrellis.com | still up |
| 2024-01-01 | Real-time and two-way sync between CRMs and Databases · stacksync.com | still up |
| 2020-01-01 | YCSegmed Real-World Data for Health Innovation · segmed.ai | still up |
| 2011-06-01 | YCMixRank Data products for sales, marketing, finance, recruiting, and more. · mixrank.com | still up |
| 2021-01-01 | YCauthzed Authorization Infrastructure securing AI at OpenAI, Zoom, & more · authzed.com | still up |
| 2021-06-01 | YCPluggy Plaid for Brazil: we allow developers to access users' financial data · pluggy.ai | still up |
| 2021-06-01 | YCAleph One source of truth for financial data. · getaleph.com | still up |
| 2021-06-01 | YCKodex Easiest way for companies to process data requests from governments · kodexglobal.com | still up |
| 2023-01-01 | Automate data-driven slide decks and documents with AI · rollstack.com | still up |
| 2024-09-01 | Real-time B2B data via simple APIs · crustdata.com | still up |
| 2017-01-01 | Getting kids ready for school in India. · dosteducation.com | still up |
| 2024-01-01 | YCReducto The complete agentic document platform · reducto.ai | still up |
| 2025-01-01 | YCMundo AI High Quality Multilingual Training Data for AI Models · mundoai.world | still up |
How this compares
Older launches have had longer to die, so this slope is expected. A year that broke it would mean something is wrong with the checking.
The register re-probes every domain it holds. Some that answered last month stop answering. We send that list — what went quiet, and what it was — once a month. Nothing else.
How this was made. Show HN entries are every post from 2021 to 2023 with at least five points that linked to its own domain; code hosts and free hosting are excluded, because a repository outlives the effort behind it. Product Hunt entries needed 100 votes — a far higher bar, so they are the promoted top slice rather than a like-for-like sample. Both are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it shut down. An HTTP error is not counted as gone — a server answering 404 is one somebody still pays for, and an audit of 25 gone-calls found two such sites alive with only a moved homepage. Y Combinator entries use the status YC publishes itself, which is why only those can say acquired. Squatted domains — a lapsed name now serving somebody else's site — are not detected, so these figures run slightly low.