You asked about Data Engineering
171 people built something like it. 46 are gone.
That is 29% of the ones whose fate we could settle, against 23% across the whole register. 11 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2021-06-01 | YCPluggy Plaid for Brazil: we allow developers to access users' financial data · pluggy.ai | still up |
| 2021-01-01 | YCauthzed Authorization Infrastructure securing AI at OpenAI, Zoom, & more · authzed.com | still up |
| 2021-06-01 | YCSecoda Secoda is the AI layer for your Analytics · secoda.co | still up |
| 2021-01-01 | API for developers and AIs to access health data · tryterra.co | still up |
| 2021-06-01 | YCTarsal Data pipeline for your security data lake. · tarsal.co | acquired |
| 2021-02-24 | prophecy.io | moved |
| 2021-06-01 | YCPipekit Pipekit scales data & CI pipelines for enterprises · pipekit.io | still up |
| 2021-01-01 | YCPrequel Helping B2B co's sync data to their customers · prequel.co | still up |
| 2021-06-01 | YCEndla Software that increases the value of oil & gas wells · endla.com | still up |
| 2021-01-01 | Build better computer vision models by building better datasets · segments.ai | acquired |
| 2021-06-01 | Manage your website from your favorite tools like Airtable and Notion · whalesync.com | still up |
| 2021-01-01 | YCAvenue Observability platform for operations teams · avenue.app | acquired |
| 2021-06-01 | YCEvidence Business intelligence as code · evidence.dev | still up |
| 2021-06-01 | YCLightly Help ML teams label the right data · lightly.ai | still up |
| 2021-01-01 | Synthetic data for better vision. · sbxrobotics.com | gone |
| 2021-06-01 | YCSatsuma Reliable blockchain indexing & querying for web3 engineering teams. · satsuma.xyz | acquired |
| 2021-01-01 | YCPlatypus The Distributed Data Operating System · getplatypus.com | gone |
| 2021-06-01 | YCWhaly Whaly is building a self-service analytics platform · whaly.io | still up |
| 2021-06-01 | Observability for Data Engineering Teams · lariatdata.com | gone |
| 2021-01-01 | YCTriplit The best database for app developers · triplit.dev | gone |
| 2021-06-01 | YCPatterns Next-Gen Financial Analysis and Reporting with AI Agents · patterns.app | gone |
| 2021-01-01 | YCClear The unbiased AI and data layer for skin health. · getclearapp.com | still up |
| 2021-06-14 | routinedb.com | unverified |
| 2021-05-05 | csweapons.com | still up |
| 2021-04-20 | manuzoid.com | still up |
| 2021-02-03 | ytt-tech.com | unverified |
| 2021-04-22 | dbgate.org | moved |
| 2021-03-24 | arc.tripl.ai | still up |
| 2021-01-01 | YCGigs The OS for Embedded Telecom · gigs.com | still up |
| 2021-01-01 | YCEncord The data layer for physical AI · encord.com | still up |
| 2021-11-11 | sheetmonkey.io | still up |
| 2021-09-22 | noteship.com | still up |
| 2021-07-09 | tilemaker.org | still up |
| 2021-05-08 | rondb.com | still up |
| 2021-06-28 | optery.com | still up |
| 2021-12-07 | simonwillison.net | still up |
| 2021-01-01 | YCAlokai Frontend Platform for eCommerce · alokai.com | still up |
| 2021-04-18 | aidmin.io | still up |
| 2021-07-10 | styvio.com | gone |
| 2021-03-27 | stackby.com | still up |
| 2021-11-07 | hewellapp.com | unverified |
| 2021-06-01 | YCAnakin One API to get clean data from any website for your AI agents at scale · anakin.io | still up |
| 2021-06-01 | YCVerihubs AI-powered Deepfake Detection · verihubs.com | still up |
| 2021-05-13 | privacybot.io | gone |
| 2021-01-01 | YCMindee AI Document Understanding API · mindee.com | still up |
| 2021-06-01 | YCDatlo Datlo helps companies increase sales and expand through data · datlo.com | still up |
| 2021-08-31 | docs.beryl.dev | gone |
| 2021-01-01 | Application Development Platform (Native Mobile + Web Apps) · flutterflow.io | still up |
| 2021-02-04 | shopgram.io | still up |
| 2021-01-01 | YCVapi Voice AI for developers. · vapi.ai | still up |
| 2021-08-26 | hippobase.io | still up |
| 2021-04-05 | thenewseachday.com | unverified |
| 2021-01-01 | Stripe for online identity verification · authologic.com | still up |
| 2021-11-11 | tablum.io | still up |
| 2021-01-01 | User research on autopilot. · greatquestion.co | still up |
| 2021-01-01 | YCSigNoz Open source alternative to DataDog · signoz.io | still up |
| 2021-09-22 | getvero.com | still up |
| 2021-03-08 | faang.io | unverified |
| 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 |
How this compares
Y Combinator reports its own outcomes, including acquisitions. The other two are judged by asking the domain, so they are not measured the same way and are never averaged together.
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.