You asked about Team Collaboration
24 people built something like it. 2 are gone.
That is 9% of the ones whose fate we could settle, against 23% across the whole register. 1 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2023-06-01 | YCAffinity A compliance training platform built for regulated industries. · itsaffinity.com | still up |
| 2023-01-01 | YCLinkGrep AI browser copilot for teams · linkgrep.com | still up |
| 2023-06-01 | End-to-end content, learning, & deal intelligence for B2B sales teams · letter.ai | still up |
| 2023-06-01 | AI patent drafting, prosecution, litigation and more for legal teams. · solveintelligence.com | still up |
| 2023-01-01 | YCEscape Offensive security for the teams that are 100x outnumbered · escape.tech | still up |
| 2023-06-01 | YCCercli AI powered HR and Recruitment for people teams · cercli.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 | YCPierre Pierre is a new, opinionated, git platform. · pierre.co | still up |
| 2023-06-01 | Live intelligence for biopharma teams. · mavenbio.com | still up |
| 2023-01-01 | YCIcePanel Design and explain complex software architecture. · icepanel.io | still up |
| 2023-01-01 | YCFlexDesk AI Agents for corporate real estate teams · flexdesk.com | still up |
| 2023-06-01 | YCNectar Manage energy cost & usage with AI for facility & sustainability teams · nectarclimate.com | still up |
| 2023-01-01 | YCClad Project management software for building infrastructure. · withclad.com | still up |
| 2023-06-01 | YCVenta AI The compliant AI colleague for sales teams in Europe · getventa.ai | still up |
| 2023-01-01 | YCOhm Ohm helps engineering teams accelerate hardware development & testing. · ohm.ai | still up |
| 2023-01-01 | YCUnify AI teammates for everyone else 🤖 · unify.ai | still up |
| 2023-01-01 | YCFrigade AI-powered product assistance for modern software teams · frigade.com | still up |
| 2023-01-01 | YCBrewit Conversational data analytics for every team · brewit.ai | acquired |
| 2023-01-01 | AI-native operating system for analytics teams · turntable.so | gone |
| 2023-06-01 | YCPropRise The AI platform for CRE investment teams · proprise.ai | still up |
| 2023-06-01 | AI back office for food product quality teams · cognitioiq.com | still up |
| 2023-01-01 | YCSorted Instant SaaS management · sorted-lp.webflow.io | gone |
| 2023-06-01 | YCMetoro AI SRE For Teams on Kubernetes · metoro.io | still up |
| 2023-01-01 | AI Teammates for Data Tasks · tableflow.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.