You asked about Team Collaboration
71 people built something like it. 71 are gone.
That is 100% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2019-06-01 | YCTandem Tandem is a virtual office for remote and distributed teams. · tandem.chat | gone |
| 2016-06-01 | YCUbiq Screen-sharing for enterprise conference rooms · goubiq.com | gone |
| 2020-06-01 | YCDuckly Video chat with real-time collaboration. · duckly.com | gone |
| 2019-01-01 | YCHerald A collaborative repository for user feedback. · heraldhq.com | gone |
| 2024-01-01 | Your team’s AI powered communication tool · atpatchwork.com | gone |
| 2014-01-01 | Virtual activities for remote teams · merrymint.co | gone |
| 2019-01-01 | YCBlitzIQ Note taking workspace for B2B sales teams · blitziq.com | gone |
| 2022-07-12 | airgram.io | gone |
| 2022-10-03 | exactbuyer.com | gone |
| 2022-07-25 | ab.bot | gone |
| 2022-03-03 | teamrecess.com | gone |
| 2022-04-21 | runhighlight.com | gone |
| 2022-06-09 | hovrly.com | gone |
| 2021-01-18 | gamejoyhq.com | gone |
| 2021-03-22 | joindistributed.com | gone |
| 2023-03-30 | flowy.live | gone |
| 2021-02-23 | quill.chat | gone |
| 2021-12-15 | cassetteapp.com | gone |
| 2021-01-25 | jel.app | gone |
| 2022-09-07 | proto.formation.tools | gone |
| 2020-01-01 | YCPrelay Team Selling Platform · prelay.com | gone |
| 2019-06-01 | YCMultis Accounting & Treasury Management Software for Web3 Teams · multis.com | gone |
| 2023-05-09 | spiti.xyz | gone |
| 2015-01-01 | YCThinAir Intelligent data security for teams · thinair.com | gone |
| 2023-01-11 | dropbase.io | gone |
| 2013-01-01 | YCMedisas Medisas builds workflow & collaboration software for hospitals. · medisas.com | gone |
| 2023-12-20 | try.flat.app | gone |
| 2023-11-13 | saaspartner.tech | gone |
| 2021-02-24 | ab.bot | gone~57mo |
| 2021-02-15 | letsflyby.com | gone~45mo |
| 2018-01-01 | YCStation Your team’s automated knowledge base · stationhq.com | gone |
| 2022-01-01 | YCPeakPath Smartwatch powered coaching to improve teams sustainable performance · peakpath.com | gone |
| 2022-04-05 | hotpizza.io | gone |
| 2022-01-01 | YCOzone Figma for video · ozone.pro | gone |
| 2021-01-16 | mailswype.io | gone~7mo |
| 2021-02-03 | meet.airconsole.com | gone~22mo |
| 2021-12-22 | interviewer.space | gone |
| 2019-06-01 | YCMuddy The multiplayer browser that knows you · feelmuddy.com | gone |
| 2022-08-14 | yolinks.app | gone |
| 2021-12-01 | asyncgo.com | gone |
| 2021-04-26 | whize.co | gone |
| 2021-01-01 | YCClay Figma for 3D design · clay3d.io | gone |
| 2022-10-10 | citodata.com | gone |
| 2023-10-24 | nectar.run | gone |
| 2021-09-23 | esports-planner.com | gone |
| 2022-01-01 | YCFinnt AI Agents for CFO and Finance teams · finnt.com | gone |
| 2011-06-01 | YCPhoneSys The Phone System for Sales Teams. · pingm.net | gone |
| 2021-06-01 | YCMixr Team building through online game tournaments. · mixronline.com | gone |
| 2019-06-01 | YCLantern User behavior monitoring for modern product teams · lantern.so | gone |
| 2021-06-01 | Observability for Data Engineering Teams · lariatdata.com | gone |
| 2020-06-01 | YCAtomized Enabling teams to deploy without needing a cloud expert · atomizedhq.com | gone |
| 2019-06-01 | YCVizy An all-in-one virtual office for remote teams · vizy.io | gone |
| 2023-01-01 | AI-native operating system for analytics teams · turntable.so | gone |
| 2023-01-01 | YCSorted Instant SaaS management · sorted-lp.webflow.io | gone |
| 2013-06-01 | YCFloobits Real-time collaborative editing in the browser with support for… · floobits.com | gone |
| 2013-06-01 | YCGoComm Mobile communications platform for teams working on live events · gocomm.com | gone |
| 2011-01-01 | YCSiasto Siasto is a collaboration tool designed for SMBs who use Google Apps,… · siasto.com | gone |
| 2020-01-01 | Implement streamlined Salesforce processes for agile GTM teams · laserfocus.io | gone |
| 2008-06-01 | teamapart.com | gone |
| 2015-06-01 | YCVernox Production planning software for construction teams. Like Asana or… · vernox.io | 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.