You asked about Next-gen Network Security
186 people built something like it. 9 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 |
|---|---|---|
| 2024-06-01 | Automate security and privacy reviews · clearly-ai.com | still up |
| 2024-01-01 | Building The Next Generation of Night Vision Devices · deepnight.com | still up |
| 2024-06-01 | We work on generalizable tools for the next era of biotech. · anthrogen.com | still up |
| 2024-09-01 | YCSymphony Voice AI sims for next-gen employee training · getsymphony.co | still up |
| 2024-06-01 | YCACX Next-generation biocides for sustainable agriculture at scale · acxtherapeutics.com | still up |
| 2024-06-01 | YCInvaria The next generation logging and observability platform · invaria.com | gone |
| 2024-06-01 | YCcmux Open source applied AI lab building next-gen devtools · cmux.com | still up |
| 2024-06-01 | Making Next-Generation Antibiotics that Outpace Bacterial Evolution · evolverebiosciences.com | still up |
| 2024-01-01 | YCAedilic Open-Source AI-generated image/deepfake detection · nonescape.com | gone |
| 2024-06-01 | YCPinnacle API & SDK for RCS (the next-generation of texting) · pinnacle.sh | still up |
| 2024-01-01 | Security for AI-native developers · superagent.sh | still up |
| 2024-01-01 | LLM Security and Compliance · promptarmor.com | still up |
| 2024-01-01 | YCTracecat Open-source agentic security automation platform · tracecat.com | still up |
| 2024-01-01 | YCLegora The agentic operating system for legal work · legora.com | still up |
| 2024-06-01 | AI Agents for collections · domu.ai | still up |
| 2024-01-01 | Supercharge Your Contact Center Operations with AI Phone Agents · retellai.com | still up |
| 2024-01-01 | YCGumloop The multiplayer AI agent builder. Let anyone build, IT controls access · gumloop.com | still up |
| 2024-01-01 | YCGreptile AI code review agent with complete context of your codebase · greptile.com | still up |
| 2024-09-01 | AI tutors for students. · generallearning.com | still up |
| 2024-01-01 | YCReducto The complete agentic document platform · reducto.ai | still up |
| 2024-06-01 | YCautarc autarc is the agentic OS for energy installers. · autarc.energy | still up |
| 2024-01-01 | Autonomous offensive and defensive cybersecurity platform · codeant.ai | still up |
| 2024-01-01 | YCOpen Enterprise AI customer support · open.cx | still up |
| 2024-06-01 | YCHenry Automating Deal Decks for Commercial Real Estate Brokers · henry.ai | still up |
| 2024-06-01 | YCSaturn Compliance and back office workflows for Wealth Managers. · saturnos.com | still up |
| 2024-09-01 | YCtelli intelligent interactions · telli.com | still up |
| 2024-01-01 | YCParallel AI agents for healthcare admin · beparallel.com | still up |
| 2024-06-01 | YCWordware AI agents you can rely on · wordware.ai | still up |
| 2024-01-01 | YCConduit AI Agents for Hospitality · conduit.ai | still up |
| 2024-06-01 | Drone detection for US defense and national security · guardianrf.com | still up |
| 2024-06-01 | YCUsul AI Platform for Winning Defense & Government Contracts · usul.com | still up |
| 2024-09-01 | The legal backoffice for every company. For founders and AI agents. · beglaubigt.de | still up |
| 2024-09-01 | YCCekura Voice AI and Chat AI agents: Testing and Observability · cekura.ai | still up |
| 2024-01-01 | YCCarma The agentic workspace that runs construction operations for profit · joincarma.com | still up |
| 2024-01-01 | YCReform AI Agents for high-stakes work. · reformhq.com | still up |
| 2024-01-01 | YCZaymo Zaymo is building an AI marketing agency · zaymo.com | still up |
| 2024-01-01 | The integration layer for live events infrastructure · crowdvolt.com | still up |
| 2024-06-01 | Capitol: the sovereign operating system for intelligence. · capitol.ai | still up |
| 2024-06-01 | YCParahelp Build an AI support agent that securely uses all your tools · parahelp.com | still up |
| 2024-06-01 | YCZeroPath Automatically find and fix your software vulnerabilities · zeropath.com | still up |
| 2024-06-01 | YCCoval Simulation & Evaluation that scales voice and chat AI agents · coval.dev | still up |
| 2024-06-01 | YCMem0 The Memory layer for AI Agents · mem0.ai | still up |
| 2024-09-01 | YCCTGT The deterministic layer for frontier intelligence · ctgt.ai | still up |
| 2024-01-01 | The relationship intelligence platform for enterprise revenue · usecentralize.com | still up |
| 2024-01-01 | AI-voice agents that are indistinguishable from humans. · marrlabs.com | still up |
| 2024-01-01 | YCRaindrop Sentry for AI Agents · raindrop.ai | still up |
| 2024-01-01 | YCROE AI for risk and compliance · getroe.ai | still up |
| 2024-06-01 | YCArgil The video generation engine for the creator economy · argil.ai | still up |
| 2024-06-01 | Complete QA platform for voice agents · hamming.ai | still up |
| 2024-06-01 | Open-Source Reinforcement Learning (RL) & Fine-tuning for LLMs. · unsloth.ai | still up |
| 2024-01-01 | YCSenso Control what AI says about you · senso.ai | still up |
| 2024-06-01 | AI agent for Accounts Receivable · fazeshift.com | still up |
| 2024-06-01 | Run a team of coding agents on your Mac · conductor.build | still up |
| 2024-01-01 | Give your voice agents a face · lemonslice.com | still up |
| 2024-01-01 | YCPazi Platform where autonomous companies are built · pazi.ai | still up |
| 2024-06-01 | YCUnbound Use AI tools without fear of data leakage · getunbound.ai | still up |
| 2024-01-01 | The developer platform for fast and reliable browser agents · cloudcruise.com | still up |
| 2024-01-01 | Agent-Driven Engineering · navier.ai | still up |
| 2024-09-01 | YCAbundant Agent simulation and RL for researchers · abundant.ai | still up |
| 2024-01-01 | YCOpenmart Local business data intelligence platform · openmart.com | 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.