You asked about Engineering, Product and Design
194 people built something like it. 32 are gone.
That is 18% of the ones whose fate we could settle, against 23% across the whole register. 19 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2023-01-01 | YCResend Email for developers · resend.com | still up |
| 2023-01-01 | YCPirros AI Platform for Architects and Engineers · pirros.com | still up |
| 2023-06-01 | YCGiga AI Support Agent for Enterprises. · giga.ai | still up |
| 2023-01-01 | YCFern Instantly offer SDKs and API Docs · buildwithfern.com | acquired |
| 2023-01-01 | YCClueso Create beautiful videos & docs for any product or process in minutes · clueso.io | still up |
| 2023-01-01 | YCVellum vellum.ai | still up |
| 2023-01-01 | YCDepot Software delivery built for machine scale. · depot.dev | still up |
| 2023-01-01 | YCLangfuse Open source LLM engineering platform · langfuse.com | acquired |
| 2023-06-01 | YCTiptap The open-source document editor for humans and AI agents. · tiptap.dev | still up |
| 2023-01-01 | YCInkeep Build AI Agent teammates and automations in code or no-code · inkeep.com | still up |
| 2023-06-01 | The GPU Cloud Marketplace · shadeform.ai | still up |
| 2023-06-01 | YCrefine Open-source Retool for enterprise · refine.dev | still up |
| 2023-01-01 | YCPierre Pierre is a new, opinionated, git platform. · pierre.co | still up |
| 2023-01-01 | Go from idea to production with AI. · magicpatterns.com | still up |
| 2023-06-01 | AI for Government Contracting. · sweetspot.so | 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 |
| 2023-06-01 | YCSilimate Fast, efficient agents for chip design and debug · silimate.com | still up |
| 2023-01-01 | Phone AI that Captures Every Dealership Revenue Opportunity · shortloop.dev | still up |
| 2023-06-01 | YCTempo Visual Editor for React, powered by AI · tempo.new | still up |
| 2023-01-01 | The open source, fullstack monitoring platform: stop guessing why… · highlight.io | acquired |
| 2023-01-01 | YCDrDroid Your best friend in production. · drdroid.io | still up |
| 2023-06-01 | YCSID AI research lab for retrieval · sid.ai | still up |
| 2023-01-01 | YCRelace Models and infra for coding agents · relace.ai | 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 | YCFastgen Webflow for the Backend · fastgen.com | still up |
| 2023-01-01 | YCSkyhook PaaS-like experience with the power of Kubernetes, on your cloud · skyhook.io | still up |
| 2023-01-01 | YCNango A single API for all your integrations · nango.dev | still up |
| 2023-01-01 | AI agents for end-to-end testing · trynarrative.com | still up |
| 2023-01-01 | YCLume Speed up customer implementation with AI · lume.ai | acquired |
| 2023-06-01 | AI for ASIC Design Verification · bronco.ai | still up |
| 2023-06-01 | The publishing layer for the agentic internet · structuredlabs.com | gone |
| 2023-01-01 | AI-powered game translation. · magnaplay.com | still up |
| 2023-01-01 | YCLynx AI platform for investigating and resolving engineering incidents · uselynx.ai | gone |
| 2023-01-01 | YCKeep The open-source AIOps platform · keephq.dev | acquired |
| 2023-06-01 | Open source GenAI development platform · flowiseai.com | acquired |
| 2023-06-01 | Aide is an AI-native , privacy-first IDE built on top of VSCode · aide.dev | gone |
| 2023-06-01 | YCSweep The best AI coding assistant for JetBrains · sweep.dev | still up |
| 2023-01-01 | YCFrigade AI-powered product assistance for modern software teams · frigade.com | still up |
| 2023-06-01 | Web, Desktop, and Mobile apps with one codebase in Rust · dioxuslabs.com | acquired |
| 2023-01-01 | The interface for your database · outerbase.com | acquired |
| 2023-01-01 | Automating root cause analysis with generative AI · wildmoose.ai | still up |
| 2023-01-01 | YCVersive AI-first user research platform · getversive.com | still up |
| 2023-01-01 | Design and build great interfaces · designbase.com | still up |
| 2023-01-01 | YCCardinal Your AI product backlog · cardinalapp.io | acquired |
| 2023-06-01 | The Data Platform for Mission‑Critical Systems · zeloscloud.io | still up |
| 2023-06-01 | YCTalc Event extraction for Medical Researchers · talc.ai | still up |
| 2023-01-01 | YCDream3D We build tools to help humanity predict the future. · dream3d.com | still up |
| 2023-06-01 | The API for LLM tool use · opentools.com | still up |
| 2023-06-01 | YCInari Your junior AI product manager · useinari.com | acquired |
| 2023-01-01 | AI coding copilot engineered for performance · double.bot | still up |
| 2023-01-01 | AI Powered Product Discovery · rubberduckylabs.io | gone |
| 2023-01-01 | YCBuildJet High-performance computing cloud · buildjet.com | still up |
| 2023-06-01 | YCsudocode orchestrate your coding agents with sudocode · sudocode.ai | still up |
| 2023-06-01 | YCBriefer The collaborative data platform. · briefer.cloud | gone |
| 2023-01-01 | YCSage AI Your self-generating, self-maintaining code knowledge base. · sage-ai.dev | still up |
| 2023-06-01 | YCInconvo Build chat-with-data agents for customer-facing applications · inconvo.com | still up |
| 2023-01-01 | YCDefer Zero infrastructure background processing platform. · defer.run | gone |
| 2023-06-01 | YCRepaint Build a website by chatting with AI · repaint.com | still up |
| 2023-06-01 | YCTremor The UI toolkit for Dashboards · tremor.so | acquired |
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.