You asked about Next-gen Network Security
229 people built something like it. 26 are gone.
That is 13% of the ones whose fate we could settle, against 23% across the whole register. 26 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2023-01-01 | The Control Plane for Enterprise Agents · credal.ai | still up |
| 2023-01-01 | YCVariance AI Agents for Fraud Review and Investigations · variance.com | still up |
| 2023-06-01 | We get patients to their next appointment · simbie.ai | still up |
| 2023-01-01 | Detect every data leak into third-party GenAI tools · compliantllm.com | still up |
| 2023-06-01 | YCXeol Close your outdated dependency attack vector · xeol.io | acquired |
| 2023-01-01 | YCVerata Network Intelligence for Investors · veratainsight.com | still up |
| 2023-06-01 | YCHiro Agents that handle security work · hirosecure.com | still up |
| 2023-01-01 | YCPylon The Agentic Support Platform purpose-built for B2B. · usepylon.com | still up |
| 2023-01-01 | YCAvoca AI-powered Sales Agent for Service-Based Industries · avoca.ai | still up |
| 2023-06-01 | The World's First Multi-Agent System for Procurement · lio.ai | still up |
| 2023-06-01 | Intelligence that runs your operations. · happyrobot.ai | still up |
| 2023-06-01 | End-to-end content, learning, & deal intelligence for B2B sales teams · letter.ai | still up |
| 2023-06-01 | YCLangdock The all-in-one AI platform for companies. · langdock.com | still up |
| 2023-06-01 | AI patent drafting, prosecution, litigation and more for legal teams. · solveintelligence.com | still up |
| 2023-01-01 | Unified platform for secrets, certs, and privileged access management · infisical.com | still up |
| 2023-01-01 | YCLatent Medical language models to automate healthcare operations · latenthealth.com | still up |
| 2023-06-01 | YCVetRec AI Scribe for veterinarians. Saving time and improving patient care. · vetrec.io | still up |
| 2023-06-01 | B2B debt collection powered by AI agents · agentcollect.com | still up |
| 2023-06-01 | YCCasca Make Banking Magical · cascading.ai | still up |
| 2023-01-01 | YCSalient AI Servicing for Auto Lenders · trysalient.com | still up |
| 2023-06-01 | YCHyLight Unmanned airships for inspecting our critical assets · hylight.aero | still up |
| 2023-01-01 | YCPlayAI Our mission is to make Voice AI accessible and useful to all. · play.ai | acquired |
| 2023-06-01 | AI-native operations for the banks · bretton.com | still up |
| 2023-06-01 | AI Operating System for Private Market Investors · vectorshift.ai | still up |
| 2023-01-01 | Automate data-driven slide decks and documents with AI · rollstack.com | still up |
| 2023-01-01 | YCTruewind AI-Powered Accounting · truewind.ai | still up |
| 2023-06-01 | YCGiga AI Support Agent for Enterprises. · giga.ai | still up |
| 2023-01-01 | YCEscape Offensive security for the teams that are 100x outnumbered · escape.tech | still up |
| 2023-01-01 | YCYuma AI The AI Support Agent for Ecommerce · yuma.ai | still up |
| 2023-01-01 | YCClueso Create beautiful videos & docs for any product or process in minutes · clueso.io | still up |
| 2023-06-01 | YCkapa.ai The fastest way to build AI assistants on technical content · kapa.ai | still up |
| 2023-06-01 | YCStrada AI agents that run insurance operations · getstrada.com | still up |
| 2023-01-01 | YCVector Advertising for the new internet · vector.co | still up |
| 2023-06-01 | YCElyos AI AI Customer Service Agents for trades and field services · elyos.ai | still up |
| 2023-01-01 | YCFloworks Hire the best AI Sales employees | AI SDR | AI RevOps | AI EA · floworks.ai | still up |
| 2023-01-01 | AI-Powered Super Mentor for Test Prep · superkalam.com | still up |
| 2023-06-01 | YCTiptap The open-source document editor for humans and AI agents. · tiptap.dev | still up |
| 2023-01-01 | YCLangfuse Open source LLM engineering platform · langfuse.com | acquired |
| 2023-06-01 | YCFlint Personalized learning built for schools · flintk12.com | still up |
| 2023-06-01 | YCAccend AI agents for commercial underwriting at banks and fintechs · withaccend.com | still up |
| 2023-01-01 | YCInkeep Build AI Agent teammates and automations in code or no-code · inkeep.com | still up |
| 2023-01-01 | YCVersori Agentic integrations & automations for enterprise · versori.com | acquired |
| 2023-01-01 | YCConduit The operating system for shipping and receiving. · helloconduit.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 | Automating Healthcare Revenue Cycle Management with AI Workforce · combinehealth.ai | still up |
| 2023-01-01 | YCCosine Fully Agentic SWE · cosine.sh | still up |
| 2023-06-01 | AI revenue recovery for underpaid healthcare claims. · clearesthealth.com | still up |
| 2023-01-01 | Performance-Optimized Influencer Marketing at Scale · 1stcollab.com | still up |
| 2023-06-01 | AI that audits AI — catching hallucinations before you ship them. · energent.ai | still up |
| 2023-01-01 | YCMantys AI agents for healthcare and insurance operations in GCC · mantys.io | still up |
| 2023-06-01 | YCAtla The improvement engine for AI agents · atla-ai.com | gone |
| 2023-01-01 | A new kind of creative company. · rubbrband.com | still up |
| 2023-06-01 | Live intelligence for biopharma teams. · mavenbio.com | still up |
| 2023-01-01 | Generative AI for protein design · diffuse.bio | still up |
| 2023-01-01 | YCBoundary The programming language for AI · boundaryml.com | still up |
| 2023-06-01 | YCDiligent AI agents for fintech risk and compliance operations · godiligent.ai | still up |
| 2023-01-01 | YCReflex The operating system for building mission-critical enterprise apps. · reflex.dev | still up |
| 2023-06-01 | AI agents for risk, compliance, and safety · safetykit.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.