You asked about Data Labeling
111 people built something like it. 8 are gone.
That is 8% of the ones whose fate we could settle, against 23% across the whole register. 6 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2022-01-01 | YCSpade Spade is the data and AI platform for modern finance. · spade.com | still up |
| 2024-06-01 | YCSepal AI Data Development for Advanced AI · sepalai.com | acquired |
| 2023-06-01 | Metadata for GenAI workflows · deasylabs.com | acquired |
| 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 |
| 2025-06-01 | YCLiva AI Audio & Video Data · theliva.ai | still up |
| 2026-06-01 | YCDatoric The secure training data R&D engine for physical AI · datoric.com | still up |
| 2026-06-01 | YCMarkov Expert computer-use data for frontier AI labs · markovstudios.com | still up |
| 2016-06-01 | YCScale AI Data-centric infrastructure to accelerate the development of AI · scale.com | still up |
| 2016-01-01 | AI + Robotics for the Built World · geckorobotics.com | still up |
| 2021-01-01 | YCEncord The data layer for physical AI · encord.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 |
| 2021-06-01 | YCAnakin One API to get clean data from any website for your AI agents at scale · anakin.io | still up |
| 2020-01-01 | YCDatasaur Datasaur builds private AI/agents for enterprise/government · datasaur.ai | still up |
| 2015-06-01 | We use human data and AI to develop better drugs faster. · vergegenomics.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 |
| 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 |
| 2021-01-01 | YCauthzed Authorization Infrastructure securing AI at OpenAI, Zoom, & more · authzed.com | still up |
| 2020-06-01 | YCDatafold Automating manual and repetitive data engineering tasks with AI · datafold.com | still up |
| 2023-01-01 | Automate data-driven slide decks and documents with AI · rollstack.com | still up |
| 2025-01-01 | YCMundo AI High Quality Multilingual Training Data for AI Models · mundoai.world | still up |
| 2020-01-01 | The API to get recordings, transcripts, and metadata from meetings · recall.ai | still up |
| 2021-06-01 | YCSecoda Secoda is the AI layer for your Analytics · secoda.co | still up |
| 2020-06-01 | Financial data layer for AI-powered finance and accounting · blueonion.ai | still up |
| 2013-01-01 | Data and AI platform for Ecommerce & Cross-Border Logistics · semantics3.com | acquired |
| 2021-06-01 | AI Agents for Data Operations · oneschema.co | still up |
| 2023-01-01 | YCFlower Train AI on distributed data · flower.ai | still up |
| 2022-01-01 | YCEventual Building the AI data engine for any modality and scale · daft.ai | still up |
| 2018-06-01 | Database for AI · activeloop.ai | still up |
| 2024-06-01 | YCEntangl Find & resolve issues in data center engineering & operations using AI · entangl.com | still up |
| 2024-01-01 | ProSights is a data / AI transformation partner to PE-backed portcos. · prosights.co | still up |
| 2022-01-01 | Rapid medical data annotation · redbrickai.com | still up |
| 2024-06-01 | YCZeit AI The autonomous data engineer for the mid-market · zeit-ai.com | still up |
| 2024-09-01 | YCArchil The high-performance file system that connects AI to data · archil.com | still up |
| 2024-06-01 | YCDavid AI Data for audio AI · withdavid.ai | still up |
| 2023-06-01 | AI that audits AI — catching hallucinations before you ship them. · energent.ai | still up |
| 2022-06-01 | YCLamin Open data platform for traceable, multimodal AI · lamin.ai | still up |
| 2023-06-01 | YCFiber AI The freshest data APIs for AI sales, recruiting, & growth products · fiber.ai | still up |
| 2023-06-01 | AI-powered insurance verification to boost patient conversion. · soharhealth.com | still up |
| 2024-01-01 | Applied AI Data Research Lab Encoding Human Expertise into Machines… · useocular.com | still up |
| 2022-01-01 | YCStrac Data Discovery, DLP, DSPM for SaaS, Cloud, Gen AI & Endpoints · strac.io | still up |
| 2021-01-01 | Build better computer vision models by building better datasets · segments.ai | acquired |
| 2026-06-01 | Network for Physical AI Data Business · deepreach.ai | still up |
| 2024-06-01 | YCAnglera AI-Powered Product Data Enrichment · anglera.com | still up |
| 2024-06-01 | YCDataleap AI Employees for the Enterprise · dataleap.ai | still up |
| 2023-06-01 | YCCedalio AI agents that automate AP, procurement, and finance · cedalio.com | still up |
| 2021-06-01 | YCGetDot Your AI Data Analyst · getdot.ai | still up |
| 2020-06-01 | YCBasedash The AI-native business intelligence platform · basedash.com | still up |
| 2026-06-01 | YCMarengo AI-Native Engineering Firm designing Data Centers · marengox.com | still up |
| 2024-01-01 | Deploy trustworthy data agent that know your business · upsolve.ai | still up |
| 2023-01-01 | YCLume Speed up customer implementation with AI · lume.ai | acquired |
| 2025-01-01 | YCNitrode Frontier AI research to advance game development · nitrode.com | still up |
| 2022-06-01 | No-code data curation for LLM fine-tuning and evaluation. · airtrain.ai | gone |
| 2022-01-01 | The System of Action for Conversation Data · spinach.ai | still up |
| 2025-06-01 | YCNovaflow The AI data analyst for biology labs · novaflow.ai | still up |
| 2025-06-01 | Robots, parts & RL envs & evals - delivered in 48 hrs / pickup in SF. · roboticscenter.ai | still up |
| 2023-01-01 | Dataset Management for AI Trainers · truthsuite.com | still up |
How this compares
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.