You asked about SaaS
148 people built something like it. 23 are gone.
That is 17% of the ones whose fate we could settle, against 23% across the whole register. 12 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2023-06-16 | propbox.co | still up |
| 2023-01-01 | YCTennr Fast, Transparent Patient Experiences · tennr.com | still up |
| 2023-04-30 | pysaas.io | moved |
| 2023-01-01 | YCNumeral The AI-native sales tax solution. · numeral.com | still up |
| 2023-06-01 | YCCampfire The AI Native ERP for the fastest growing companies. · campfire.ai | still up |
| 2023-01-01 | YCHadrius Automating Securities Compliance · hadrius.com | still up |
| 2023-06-01 | The operating system for inbound B2B revenue · hockeystack.com | still up |
| 2023-01-01 | YCSuger Salesforce for Cloud marketplaces on AWS, Azure, GCP · suger.io | still up |
| 2023-01-01 | Unified platform for secrets, certs, and privileged access management · infisical.com | still up |
| 2023-07-05 | b2bsaaskit.com | still up |
| 2023-01-01 | AI-based full stack observability platform · middleware.io | still up |
| 2023-01-01 | YCBujeti The Finance Control Centre for African Businesses · bujeti.com | still up |
| 2023-06-01 | YCTrayd A construction payroll and compliance platform built for specialty… · buildtrayd.com | still up |
| 2023-01-01 | YCHona Personal Injury Legal Work - Automated · hona.com | still up |
| 2023-01-01 | YCFern Instantly offer SDKs and API Docs · buildwithfern.com | acquired |
| 2023-01-01 | YCTruewind AI-Powered Accounting · truewind.ai | still up |
| 2023-09-09 | productonboarding.com | still up |
| 2023-06-01 | YCOutset AI-powered user interviews · outset.ai | still up |
| 2023-06-01 | YCCercli AI powered HR and Recruitment for people teams · cercli.com | still up |
| 2023-01-01 | YCVitalize Transforming how health systems optimize labor · vitalize.care | still up |
| 2023-11-14 | launchleopard.com | moved |
| 2023-01-01 | YCClueso Create beautiful videos & docs for any product or process in minutes · clueso.io | still up |
| 2023-01-01 | The #1 Actionable FinOps Platform · cloudchipr.com | still up |
| 2023-04-15 | documentationlab.com | gone |
| 2023-06-01 | YCStrada AI agents that run insurance operations · getstrada.com | still up |
| 2023-06-01 | YCElyos AI AI Customer Service Agents for trades and field services · elyos.ai | still up |
| 2023-01-01 | YCVector Advertising for the new internet · vector.co | still up |
| 2023-10-02 | launchfa.st | still up |
| 2023-05-28 | pageshidara.com | gone |
| 2023-01-01 | YCPoloTab Restaurant software that actually works · polotab.com | still up |
| 2023-01-01 | YCMetal The AI context platform for private capital. Everything your firm… · metal.ai | still up |
| 2023-01-01 | YCMilio B2B-2C real-time account to account payments · miliopay.com | still up |
| 2023-01-01 | YCVersori Agentic integrations & automations for enterprise · versori.com | acquired |
| 2023-06-01 | YCArtie Software that streams data from databases to warehouses in real-time · artie.com | still up |
| 2023-01-01 | Transform any software to multi-cloud SaaS in minutes not years · omnistrate.com | still up |
| 2023-06-01 | The all-in-one EMR built for med spas and elective care · decodahealth.com | still up |
| 2023-01-01 | YCSyncly Social listening for the video era · syncly.app | still up |
| 2023-06-01 | AI Agents For RFP and Questionnaire Response Automation · inventive.ai | still up |
| 2023-01-01 | YCConduit The operating system for shipping and receiving. · helloconduit.com | still up |
| 2023-03-07 | nicelydone.club | still up |
| 2023-06-01 | YCTwenty Open Source CRM · twenty.com | still up |
| 2023-06-01 | AI revenue recovery for underpaid healthcare claims. · clearesthealth.com | still up |
| 2023-11-13 | saaspartner.tech | gone |
| 2023-02-20 | 1place.app | still up |
| 2023-04-04 | deno.com | still up |
| 2023-06-01 | YCAlguna AI-Native CPQ & Billing for Modern Pricing Models · alguna.com | still up |
| 2023-01-01 | YCMantys AI agents for healthcare and insurance operations in GCC · mantys.io | still up |
| 2023-06-01 | YCSanté All-in-one POS for liquor stores · santehq.com | still up |
| 2023-01-01 | Build and deploy fully‑managed AI agents and workflows · trigger.dev | still up |
| 2023-01-01 | Know what your LLM is doing — and why it’s failing · traceloop.com | acquired |
| 2023-04-13 | app.getsidekick.ai | unverified |
| 2023-01-01 | YCIcePanel Design and explain complex software architecture. · icepanel.io | still up |
| 2023-01-01 | The SAFE for commercial contracts · commonpaper.com | still up |
| 2023-06-01 | YCFiber AI The freshest data APIs for AI sales, recruiting, & growth products · fiber.ai | still up |
| 2023-01-01 | YCDrDroid Your best friend in production. · drdroid.io | still up |
| 2023-01-01 | YCPalomma AI & financial services for real estate in LatAm, starting by rent · palomma.com | still up |
| 2023-01-01 | The open source, fullstack monitoring platform: stop guessing why… · highlight.io | acquired |
| 2023-01-01 | YCClad Project management software for building infrastructure. · withclad.com | still up |
| 2023-06-01 | Transform scientific data into discoveries · mantlebio.com | gone |
| 2023-02-09 | simplesuite.co | unverified |
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.