You asked about Infrastructure
130 people built something like it. 7 are gone.
That is 5% of the ones whose fate we could settle, against 23% across the whole register. 2 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2016-06-01 | YCScale AI Data-centric infrastructure to accelerate the development of AI · scale.com | still up |
| 2024-06-01 | Corgi is building an AI financial infrastructure company · corgi.com | still up |
| 2021-01-01 | YCEncord The data layer for physical AI · encord.com | still up |
| 2022-01-01 | YCRDash AI Powered Construction Management Software · rdash.io | still up |
| 2021-06-01 | YCRootly AI-native on-call and incident response carefully crafted to help… · rootly.com | still up |
| 2021-06-01 | YCTavus Building the human layer of AI · tavus.io | still up |
| 2023-06-01 | YCBland AI The enterprise platform for AI phone calls · bland.com | still up |
| 2017-06-01 | The best way to build Voice AI apps · assemblyai.com | still up |
| 2020-01-01 | YCTermii Termii is an AI-native reliability infrastructure company. · termii.com | still up |
| 2020-06-01 | YCReady Ensuring AI delivers what people need, when and where they need it,… · ready.net | still up |
| 2022-06-01 | YCPaces Agentic AI for Power Projects and AI Infrastructure · paces.com | still up |
| 2023-01-01 | AI-based full stack observability platform · middleware.io | still up |
| 2022-01-01 | YCLanceDB Open-source, serverless vectordb for production-scale generative AI · lancedb.com | still up |
| 2024-01-01 | YCPointOne AI Time Platform for Law Firms · pointone.com | still up |
| 2022-01-01 | YCBotCity Observability and Governance for AI-Generated Python scripts. · botcity.dev | still up |
| 2018-06-01 | YCInscribe AI Document Fraud Detection for Banks, Credit Unions & Lenders · inscribe.ai | still up |
| 2022-01-01 | YCUnlayer AI-powered content creation infrastructure for apps · unlayer.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 |
| 2022-01-01 | YCCinder Infrastructure to protect companies from AI abuse · cinder.ai | still up |
| 2025-01-01 | YCMundo AI The data layer for perceptual intelligence · mundoai.world | still up |
| 2022-01-01 | Virtualizing brick-mortar infrastructures of clinics w/ generative AI · ankr.us | still up |
| 2022-01-01 | YCCuracel AI-Powered Infrastructure for Insurance & Healthcare · curacel.co | still up |
| 2020-01-01 | The API to get recordings, transcripts, and metadata from meetings · recall.ai | still up |
| 2021-06-01 | YCMach9 AI CAD Software for Civil Engineering · mach9.ai | still up |
| 2022-01-01 | YCKorrAI Traceable AI for billion-dollar infrastructure. · korrai.com | still up |
| 2021-01-01 | YCOpenCode The open source AI coding agent · opencode.ai | still up |
| 2024-01-01 | YCRespan Open-source, extensible AI gateway with observability and evals · respan.ai | still up |
| 2025-06-01 | YCKERNEL Crazy fast, open source infra for AI agents to use the Internet · kernel.sh | still up |
| 2025-09-01 | YCBolna AI Voice AI to enable India's next billion · bolna.ai | still up |
| 2022-01-01 | YCEventual Building the AI data engine for any modality and scale · daft.ai | still up |
| 2024-06-01 | YCEntangl Find & resolve issues in data center engineering & operations using AI · entangl.com | still up |
| 2018-06-01 | Database for AI · activeloop.ai | still up |
| 2024-06-01 | YCWordware AI agents you can rely on · wordware.ai | still up |
| 2023-03-15 | outerbounds.com | still up |
| 2020-01-01 | AI-native direct booking infrastructure for global hospitality · guruhotel.com | still up |
| 2024-09-01 | YCArchil The high-performance file system that connects AI to data · archil.com | still up |
| 2025-09-01 | Agentic AI for Society Builders · brickanta.com | still up |
| 2022-06-01 | YCCoris AI risk and ops platform for Payment Processors, Banks, SaaS… · coris.ai | still up |
| 2022-06-01 | YCLamin Open data platform for traceable, multimodal AI · lamin.ai | still up |
| 2025-06-01 | Persistent computers for AI agents · dedaluslabs.ai | still up |
| 2023-06-01 | YCSkyvern Open Source AI Agent to automate browser workflows via an API · skyvern.com | still up |
| 2025-06-01 | Email Inboxes for AI Agents · agentmail.to | still up |
| 2024-01-01 | YCZep AI The unified context layer for enterprise data · getzep.com | still up |
| 2024-06-01 | YCMem0 The Memory layer for AI Agents · mem0.ai | still up |
| 2024-01-01 | YCROE AI for risk and compliance · getroe.ai | still up |
| 2020-01-01 | YCSignadot Scalable validation infrastructure for AI agents · signadot.com | still up |
| 2026-09-01 | YCInvertix Energy Superintelligence, AI that operates critical infrastructure · invertix.ai | still up |
| 2024-06-01 | Open-Source Reinforcement Learning (RL) & Fine-tuning for LLMs. · unsloth.ai | still up |
| 2026-01-01 | YCOximy Take command of the AI your company already runs on. · oximy.com | still up |
| 2026-01-01 | The Networking Layer of AI · pirislabs.io | still up |
| 2023-01-01 | Usage Metering, AI & API Monetization · openmeter.io | acquired |
| 2025-06-01 | YCLuminal Making AI run fast on any hardware. · luminal.com | still up |
| 2023-06-01 | YCSID AI research center for retrieval · sid.ai | still up |
| 2025-01-01 | YCOsmosis Reinforcement Learning (RL) for AI Agents · osmosis.ai | still up |
| 2022-01-01 | AI-powered scalable infrastructure + mental health services, starting… · hellolunajoy.com | still up |
| 2025-09-01 | Infrastructure for AI labs to focus on research. · sf-tensor.com | still up |
| 2025-09-01 | YCSciloop Expert STEM reasoning data for frontier AI labs. · sciloop.dev | still up |
| 2024-06-01 | The most powerful sandboxes for AI Agents · freestyle.sh | still up |
| 2025-06-01 | YCAutumn Billing infrastructure for AI · useautumn.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.