You asked about Security Orchestration, Automation and Response (SOAR)
65 people built something like it. 9 are gone.
That is 16% of the ones whose fate we could settle, against 23% across the whole register. 8 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2023-06-01 | AI Agents For RFP and Questionnaire Response Automation · inventive.ai | still up |
| 2023-01-25 | automatisch.io | still up |
| 2023-08-01 | magicloops.dev | still up |
| 2023-01-01 | YCTennr Fast, Transparent Patient Experiences · tennr.com | still up |
| 2023-05-20 | embedworkflow.com | still up |
| 2023-01-01 | YCStackAI The Enterprise AI Transformation Platform · stackai.com | acquired |
| 2023-06-01 | Digital-native home painting franchise · craftwork.com | still up |
| 2023-01-01 | Security infrastructure for developers and agents · infisical.com | still up |
| 2023-06-01 | Navigating patients to the right place, first time. · healthtech1.uk | still up |
| 2023-01-01 | YCVooma Automation platform for logistics · vooma.ai | still up |
| 2023-05-05 | dys2p.com | still up |
| 2023-01-01 | YCEscape Offensive security for the teams that are 100x outnumbered · escape.tech | still up |
| 2023-03-08 | forethought.ai | still up |
| 2023-10-18 | kerkour.com | still up |
| 2023-09-14 | marketplace.sleuth.io | still up |
| 2023-01-01 | YCloopfour Workflow automation, without AI hallucinations. · loopfour.com | still up |
| 2023-01-01 | YCInkeep Build AI Agent teammates and automations in code or no-code · inkeep.com | still up |
| 2023-01-17 | caido.io | still up |
| 2023-01-01 | YCVersori Agentic integrations & automations for enterprise · versori.com | acquired |
| 2023-02-14 | openapi.security | gone |
| 2023-01-01 | The Control Plane for Enterprise Agents · credal.ai | still up |
| 2023-06-16 | roller-coaster.app | unverified |
| 2023-11-07 | trustypkg.dev | gone |
| 2023-07-25 | prosona.ai | gone |
| 2023-01-01 | YCVariance AI Agents for Fraud Review and Investigations · variance.com | still up |
| 2023-08-22 | demo.uptrain.ai | unverified |
| 2023-11-14 | zerotrustassess.com | still up |
| 2023-01-01 | YCinBuild Workflow Automation for Construction Finance · inbuild.ai | still up |
| 2023-06-01 | AI that audits AI — catching hallucinations before you ship them. · energent.ai | still up |
| 2023-06-01 | YCSkyvern Open Source AI Agent to automate browser workflows via an API · skyvern.com | still up |
| 2023-06-09 | useplunk.com | still up |
| 2023-09-07 | complimony.com | moved |
| 2023-02-06 | castled.io | still up |
| 2023-05-13 | simplotask.com | gone |
| 2023-02-21 | getstrada.co | moved |
| 2023-06-01 | YCSubsets AI-driven Retention Automation for subscription media businesses. · subsets.com | still up |
| 2023-06-09 | pluto.fi | gone |
| 2023-01-01 | YCSameday The leading AI workforce for the trades. · gosameday.com | still up |
| 2023-08-28 | promptportals.com | gone |
| 2023-06-01 | YCCorgea Corgea finds, and fixes insecure code and packages autonomously. · corgea.com | still up |
| 2023-06-01 | Automating lenders' interactions with the DMV · cardinalgray.com | still up |
| 2023-08-14 | beyondmachines.net | still up |
| 2023-01-01 | YCPigeon AI-powered document automation: collect, review, extract, and sync. · pigeondocuments.com | still up |
| 2023-01-01 | YCMulligan AI automation for insurance brokerages · insurestack.ai | acquired |
| 2023-06-01 | YCSola Copilot for Robotic Process Automation · sola-solutions.com | still up |
| 2023-01-01 | YCEdgeBit Autofix your software dependencies · edgebit.io | acquired |
| 2023-10-10 | compliance.sh | unverified |
| 2023-08-07 | unfetch.com | still up |
| 2023-06-01 | Firmware cybersecurity · metalware.com | still up |
| 2023-01-01 | YCFinic Frontier AI to stop fraud, abuse, and financial crimes. · finic.ai | still up |
| 2023-01-01 | YCRepacket Employee security done for you. · repacket.com | still up |
| 2023-06-01 | continuous human verification without CAPTCHAs or user friction · poh.org | still up |
| 2023-01-01 | Delinquency reduction and automation software for institutional… · getcobblestone.com | acquired |
| 2023-06-01 | YCXeol Close your outdated dependency attack vector · xeol.io | acquired |
| 2023-01-01 | AI-powered customer support automation for fast-growing companies · opensight.ai | gone |
| 2023-01-01 | YCVelos AI BPO for Specialty Insurance MGAs · tryvelos.com | still up |
| 2023-01-01 | Detect every data leak into third-party GenAI tools · compliantllm.com | still up |
| 2023-06-01 | YCSidenote Meeting follow-up, automated · sidenote.ai | gone |
| 2023-01-01 | AI RCM assistant that handles any insurance task on payer portals for… · pledge.health | acquired |
| 2023-01-01 | YCBlyss End-to-end encrypted AI. · blyss.dev | gone |
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.