You asked about SaaS
1,145 people built something like it. 155 are gone.
That is 16% of the ones whose fate we could settle, against 23% across the whole register. 180 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2009-06-01 | YCStripe Economic infrastructure for the internet. · stripe.com | still up |
| 2019-01-01 | YCDeel The all-in-one HR and payroll platform for global teams · deel.com | still up |
| 2014-01-01 | YCFlexport Platform for global logistics. · flexport.com | still up |
| 2013-01-01 | YCFivetran The leader in automated data movement · fivetran.com | still up |
| 2016-01-01 | YCPodium Get more leads. Make more money. · podium.com | still up |
| 2016-06-01 | YCAthelas Extensible, Integrated Technology that Simplifies Health Systems · athelas.com | still up |
| 2017-06-01 | The first public safety operating system that eliminates crime. · flocksafety.com | still up |
| 2014-06-01 | YCClear Fintech SaaS platform for invoices, taxes, wealth management & credit. · clear.in | still up |
| 2016-01-01 | AI-First Creative Partner for Enterprise Teams · superside.com | still up |
| 2014-01-01 | YCAlgolia A developer-friendly and enterprise-grade search API. · algolia.com | still up |
| 2015-06-01 | The 401(k) for small and medium-sized businesses. · humaninterest.com | still up |
| 2012-06-01 | Unlocking the power of biotech with modern software for modern science · benchling.com | still up |
| 2015-06-01 | YCIronclad AI-powered contract management · ironcladapp.com | still up |
| 2014-01-01 | YCGuesty The management platform for the short term rental industry. · guesty.com | still up |
| 2012-06-01 | YCZapier The easiest way to automate your work. · zapier.com | still up |
| 2022-10-27 | microsaashq.com | still up |
| 2014-01-01 | YCWeave Customer communication and payments platform. · getweave.com | acquired |
| 2013-06-01 | YCWebflow Professional website design and publishing platform. · webflow.com | still up |
| 2011-06-01 | YCSegment Software and APIs to collect, clean, and control customer data. · segment.com | acquired |
| 2021-01-01 | YCTractian Physical AI for asset-heavy industries · tractian.com | still up |
| 2023-06-16 | propbox.co | still up |
| 2018-01-01 | YCAspire All-in-one Finance OS for businesses · aspireapp.com | still up |
| 2022-01-01 | Data driven neobank for SMBs in LATAM · kapital.mx | still up |
| 2022-01-26 | divbyzero.com | still up |
| 2022-06-30 | gorelay.co | still up |
| 2013-01-01 | YCHeap Captures user interactions with no code to generate analytics. · heap.io | acquired |
| 2014-06-01 | YCFront Customer communications hub for building strong relationships · front.com | still up |
| 2022-03-18 | opensourcealternative.to | still up |
| 2022-10-18 | collective.work | unverified |
| 2018-01-01 | YCSimetrik No code enterprise SaaS for financial control automation. · simetrik.com | still up |
| 2013-06-01 | Improving education for every student. · panoramaed.com | still up |
| 2022-11-08 | jumpcloud.com | still up |
| 2022-01-26 | hockeystack.com | still up |
| 2018-06-01 | YCSkydropX Logistic Management System for E-commerce & Retail in Mexico. · skydropx.com | still up |
| 2022-04-29 | phlaunchchecklist.com | still up |
| 2012-06-01 | The best way to launch, manage and measure social impact programs · submittable.com | still up |
| 2018-06-01 | YCUBITS Learning Hub for companies in Latam · ubits.com | still up |
| 2016-06-01 | Harnesses business activity to unlock growth. · people.ai | still up |
| 2016-01-01 | YCSendbird The AI agent that doesn’t just support, it delights. · sendbird.com | still up |
| 2014-01-01 | YCSnapdocs digital mortgage closing · snapdocs.com | still up |
| 2018-01-01 | Agile commission software to design, deploy & adapt commission plans. · captivateiq.com | still up |
| 2022-10-07 | marbleflows.com | unverified |
| 2022-01-01 | YCHumand All-in-one app for internal communication and HR · humand.co | still up |
| 2022-07-30 | saasnapkin.com | gone |
| 2022-04-21 | saasmate.co | still up |
| 2021-06-01 | YCYummy The everything app for LATAM · yummysuperapp.com | still up |
| 2022-04-04 | dansiepen.io | still up |
| 2022-01-20 | microsaasidea.com | still up |
| 2016-01-01 | Agentic Observability Platform for Mobile · luciq.ai | still up |
| 2020-06-01 | Accounting, Payments & Credit app for 60M micro-businesses in… · bukuwarung.com | still up |
| 2022-04-28 | unicornplatform.com | still up |
| 2017-01-01 | YCBitrise Hosted Continuous Integration and Delivery for mobile apps · bitrise.io | still up |
| 2018-01-01 | Contact center AI platform. · observe.ai | still up |
| 2022-02-11 | app.candu.ai | still up |
| 2015-01-01 | YCQventus We automate operations for hospitals and health systems · qventus.com | still up |
| 2012-06-01 | YCLever Talent Acquisition Suite that combines ATS + Talent CRM · lever.co | acquired |
| 2021-06-01 | Global platform for employee engagement with rewards&flexible benefits · advantageclub.co | still up |
| 2012-06-01 | YCClever The platform that powers technology in the classroom. · clever.com | acquired |
| 2018-01-01 | 'Figma/Canva for scientists’ · biorender.com | still up |
| 2023-01-01 | YCTennr Fast, Transparent Patient Experiences · tennr.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.
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.