You asked about SaaS
129 people built something like it. 18 are gone.
That is 15% of the ones whose fate we could settle, against 23% across the whole register. 12 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2023-01-01 | YCTennr Fast, Transparent Patient Experiences · tennr.com | still up |
| 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 | Unified platform for secrets, certs, and privileged access management · infisical.com | still up |
| 2023-01-01 | YCSuger Salesforce for Cloud marketplaces on AWS, Azure, GCP · suger.io | 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 | YCTruewind AI-Powered Accounting · truewind.ai | still up |
| 2023-01-01 | YCFern Instantly offer SDKs and API Docs · buildwithfern.com | acquired |
| 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 |
| 2023-01-01 | The #1 Actionable FinOps Platform · cloudchipr.com | still up |
| 2023-01-01 | YCClueso Create beautiful videos & docs for any product or process in minutes · clueso.io | still up |
| 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 |
| 2023-01-01 | 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 | YCConduit The operating system for shipping and receiving. · helloconduit.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 |
| 2023-06-01 | AI revenue recovery for underpaid healthcare claims. · clearesthealth.com | still up |
| 2023-06-01 | YCTwenty Open Source CRM · twenty.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 | YCIcePanel Design and explain complex software architecture. · icepanel.io | 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 |
| 2023-01-01 | YCDrDroid Your best friend in production. · drdroid.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 | 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 |
| 2023-06-01 | Transform scientific data into discoveries · mantlebio.com | gone |
| 2023-01-01 | YCSkyhook PaaS-like experience with the power of Kubernetes, on your cloud · skyhook.io | still up |
| 2023-01-01 | The AI Agent platform for finance · concourse.co | still up |
| 2023-06-01 | YCSpine AI Manage a swarm of AI agents to get real work done · getspine.ai | still up |
| 2023-01-01 | YCChima Building infrastructure tools to help large companies customize their… · withchima.com | still up |
| 2023-01-01 | Plaid for supply chain logistics · trackstarhq.com | still up |
| 2023-01-01 | AI-Powered Clinical Decision Support & Ambient Scribing · glass.health | still up |
| 2023-01-01 | YCMiracle Accelerate clinical trials with real-time, actionable insights · miracleml.com | still up |
| 2023-01-01 | YCClad Project management software for building infrastructure. · withclad.com | still up |
| 2023-01-01 | YCHoneydew The home for shared data logic · honeydew.ai | still up |
| 2023-06-01 | YCConverge All-in-one marketing measurement for B2C · runconverge.com | still up |
| 2023-01-01 | YCSherloq One place for all your queries, directly on your SQL editor · sherloqdata.io | still up |
| 2023-06-01 | YCUnhaze The right leads at the right time for B2B sales · unhaze.ai | gone |
| 2023-06-01 | Building the next Procore · constructable.ai | still up |
| 2023-01-01 | YCCoperniq Workflow software for solar & energy contractors ☀️😎 · coperniq.io | still up |
| 2023-01-01 | YCNango A single API for all your integrations · nango.dev | 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.