You asked about IoT Security
390 people built something like it. 55 are gone.
That is 16% of the ones whose fate we could settle, against 23% across the whole register. 49 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2020-01-01 | YCRiot Cybersecurity awareness for fast growing companies · tryriot.com | still up |
| 2019-01-01 | YCTermius Termius is an SSH client with team collaboration features · termius.com | still up |
| 2014-01-01 | We're making a smart, front door camera with intercom that lets you… · getkuna.com | acquired |
| 2025-06-01 | AI infrastructure for biosecurity · twentytwo.bio | still up |
| 2025-06-01 | Infrastructure Cartography · riverbank.sh | still up |
| 2012-06-01 | Unlocking the power of biotech with modern software for modern science · benchling.com | still up |
| 2018-01-01 | YCVanta Vanta—the proven leader in automated compliance helping startups… · vanta.com | still up |
| 2021-01-01 | YCTractian Physical AI for asset-heavy industries · tractian.com | still up |
| 2015-01-01 | YCChariot The world's first private mass transit service providing a commuting… · chariot.com | acquired |
| 2019-06-01 | YCTRM Labs TRM is building a safer world for billions of people. · trmlabs.com | still up |
| 2016-01-01 | We make robots for biologists. · opentrons.com | still up |
| 2022-03-15 | securitypage.fyi | gone |
| 2015-06-01 | YCTeleport The Infrastructure Identity Company · goteleport.com | still up |
| 2022-10-05 | beaglesecurity.com | still up |
| 2012-01-01 | YCAuthy Authy is a Two-Factor Authentication platform for developers · authy.com | acquired |
| 2016-06-01 | YCgarten Creating workplace wellbeing. · garten.co | acquired |
| 2016-01-01 | Protects organizations from getting breached through their APIs. · salt.security | still up |
| 2017-01-01 | YCSolugen Decarbonizing the chemicals industry. · solugen.com | still up |
| 2021-01-01 | YCCyble Cyble - World’s First Intelligence-Driven, AI-Native Security… · cyble.com | still up |
| 2022-06-02 | drata.com | unverified |
| 2021-11-29 | jvsg.com | still up |
| 2017-01-01 | YCUpKeep Mobile-first software for maintenance teams. · upkeep.com | acquired |
| 2017-01-01 | AI company transforming enterprise physical security to prevent… · ambient.ai | still up |
| 2022-03-31 | trustpage.com | gone |
| 2022-06-15 | exaluminal.com | still up |
| 2012-06-01 | Secure Collaboration for Technical Teams · mattermost.com | still up |
| 2018-01-01 | YCSqreen Sqreen is the application security platform for the modern enterprise · sqreen.com | acquired |
| 2022-06-27 | cloud.armosec.io | still up |
| 2016-06-01 | YCValidere A carbon MRV solution for energy and hard-to-abate sectors · validere.com | still up |
| 2022-02-10 | kraftful.com | still up |
| 2021-01-01 | YCgaiia all-in-one operating system (OS) for telcos · gaiia.com | still up |
| 2012-01-01 | YCRidecell World's Leading Fleet Intelligence Platform · ridecell.com | still up |
| 2018-01-01 | Security auditing for Web3 · quantstamp.com | still up |
| 2022-01-01 | Identity Verification API for Emerging Markets · prembly.com | still up |
| 2019-01-01 | YCMemfault First IoT reliability platform for debugging, monitoring, OTA updates · memfault.com | acquired |
| 2021-06-01 | YCRootly AI-native on-call and incident response carefully crafted to help… · rootly.com | still up |
| 2022-06-01 | YCOneleet YC's most popular security compliance platform (SOC 2, ISO 27001,… · oneleet.com | still up |
| 2020-01-01 | Next-generation DNA synthesis using enzymes · ansabio.com | still up |
| 2015-01-01 | Artificial intelligence for drug discovery. · numerionlabs.ai | still up |
| 2022-03-02 | argos-security.io | still up |
| 2022-01-01 | Plug-and-play AI platform with sensors and dashboards that makes… · iotflows.com | still up |
| 2020-06-01 | YCSafeBase Trust Center platform that scales customer security reviews · safebase.io | acquired |
| 2016-01-01 | YCLygos Lygos engineers yeast to convert sugar into high-value industrial… · lygos.com | still up |
| 2018-01-01 | YCAnjuna Anjuna enabled organizations to trust any infrastructure · anjuna.io | still up |
| 2022-01-01 | YCOptery Opt out software that removes your private info from the internet · optery.com | still up |
| 2022-01-01 | Enterprise Deepfake Detection · realitydefender.com | still up |
| 2020-01-01 | Foundation models and autonomous chambers for plant biology · urbankisaan.com | still up |
| 2015-01-01 | Bluesmart makes smart luggage powered by an app to empower people to… · bluesmart.com | acquired |
| 2011-06-01 | Automatic connects your car to the rest of your digital life. · automatic.com | acquired |
| 2021-02-13 | ai-cam.app | moved |
| 2011-06-01 | Powering scientific outsourcing · scienceexchange.com | acquired |
| 2020-01-01 | RNA medicines for liver diseases · ochre-bio.com | still up |
| 2019-01-01 | Unlocking the utility of genomics for the world. · voltalabs.com | still up |
| 2022-01-01 | YCAgency Agency replaces traditional security and compliance headcount with AI. · getagency.com | still up |
| 2018-06-01 | AIoT monitoring, workflow, and evidence systems for regulated labs. · ilabservice.ai | still up |
| 2023-01-01 | Unified platform for secrets, certs, and privileged access management · infisical.com | still up |
| 2022-01-01 | Bluetooth to Space · hubble.com | still up |
| 2020-06-01 | YCNotabene The Notabene platform is the trust layer for global money movement. · notabene.id | still up |
| 2021-12-14 | impervious.com | still up |
| 2015-01-01 | Personalized drug discovery for blood cancer. · notablelabs.com | 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.
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.