You asked about Team Collaboration
349 people built something like it. 71 are gone.
That is 23% of the ones whose fate we could settle, against 23% across the whole register. 41 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2022-05-17 | claap.io | still up |
| 2022-05-19 | usewerk.com | unverified |
| 2022-02-21 | innos.io | unverified |
| 2012-06-01 | Secure Collaboration for Technical Teams · mattermost.com | still up |
| 2019-01-01 | YCTermius Termius is an SSH client with team collaboration features · termius.com | still up |
| 2016-01-01 | YCMio Mio powers seamless communication between workplace chat apps. · m.io | still up |
| 2021-06-01 | YCDailybot Make all team work visible — people and AI agents · dailybot.com | still up |
| 2019-06-01 | YCTandem Tandem is a virtual office for remote and distributed teams. · tandem.chat | gone |
| 2019-06-01 | YCTaskade One prompt. One app. One living workspace for teams. · taskade.com | still up |
| 2019-01-01 | YCCocoon Bring your most important groups closer together · cocoon.com | acquired |
| 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 |
| 2021-01-01 | A faster and more collaborative alternative to Jira for remote teams · kitemaker.co | acquired |
| 2024-01-01 | Your team’s AI powered communication tool · atpatchwork.com | gone |
| 2013-01-01 | Collaborative Screen Sharing — you each get your own mouse, and… · screenhero.com | acquired |
| 2025-01-01 | YCOlive Build internal tools with AI · fromolive.com | still up |
| 2023-06-01 | YCAffinity A compliance training platform built for regulated industries. · itsaffinity.com | still up |
| 2019-01-01 | YCHerald A collaborative repository for user feedback. · heraldhq.com | gone |
| 2023-01-01 | YCLinkGrep AI browser copilot for teams · linkgrep.com | still up |
| 2015-01-01 | YCWorkLife WorkLife is a SaaS application that helps teams have more effective… · worklife.com | acquired |
| 2014-01-01 | Virtual activities for remote teams · merrymint.co | gone |
| 2024-01-01 | Gives non-technical team members agents that work right out of the box · usesolari.ai | still up |
| 2019-01-01 | YCBlitzIQ Note taking workspace for B2B sales teams · blitziq.com | gone |
| 2019-01-01 | YCDeel The all-in-one HR and payroll platform for global teams · deel.com | still up |
| 2012-01-01 | YCGusto Provides growing businesses with everything to take care of their team · gusto.com | still up |
| 2022-05-04 | folk.app | still up |
| 2016-01-01 | AI-First Creative Partner for Enterprise Teams · superside.com | still up |
| 2022-11-10 | air.inc | still up |
| 2022-10-19 | loopinhq.com | still up |
| 2022-11-23 | bugasura.io | still up |
| 2019-06-01 | Building the safety net of the future · pairteam.com | still up |
| 2022-06-24 | causal.app | moved |
| 2022-07-01 | tailwindui.com | moved |
| 2022-04-07 | at.cafe | still up |
| 2022-06-09 | slite.com | still up |
| 2022-07-20 | raycast.com | still up |
| 2022-05-10 | klutch.app | still up |
| 2022-10-18 | collective.work | unverified |
| 2022-02-17 | thursday.social | still up |
| 2022-01-27 | teamout.com | still up |
| 2022-06-15 | tango.us | moved |
| 2022-05-17 | app.docare.io | still up |
| 2022-03-16 | walnut.io | still up |
| 2022-07-12 | airgram.io | gone |
| 2022-01-13 | plumhq.com | still up |
| 2022-05-15 | awesomeindie.com | still up |
| 2022-04-07 | multiplayer.dev | still up |
| 2022-10-03 | zorp.one | still up |
| 2022-02-07 | dashworks.ai | still up |
| 2022-06-15 | fleet.co | still up |
| 2022-05-19 | virtuelly.com | moved |
| 2022-10-03 | exactbuyer.com | gone |
| 2022-10-25 | mmhmm.app | moved |
| 2022-02-15 | miro.com | still up |
| 2022-07-18 | streamalive.com | still up |
| 2022-02-16 | app.kickscale.com | still up |
| 2022-03-09 | motionapp.com | still up |
| 2022-06-13 | slack.com | unverified |
| 2022-07-25 | ab.bot | gone |
| 2022-10-05 | latitude.so | still up |
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.