Y Combinator's directory lists 13 companies in the Winter 2007 batch: 2 Active, 6 Acquired, 0 Public and 5 Inactive. 38% of Winter 2007 is listed Inactive, against 23% across YC batches at least two years old, so this batch has lost more companies than most.
ActiveAcquiredPublicInactive
Statuses are Y Combinator's own listing in its public company directory, read on the date shown. YC's directory can drop companies altogether, so the Inactive counts here are a floor, not a full count of companies that stopped. Acquired and Public are as YC lists them; neither says anything about the price or the outcome for founders.
Every company in Winter 2007
| Company | What they do | Status | Team |
|---|---|---|---|
| Buxfer | Buxfer helps you make better spending decisions by making it easy to… | Active | 1 |
| Virtualmin | Active | 2 | |
| Auctomatic | Acquired | 2 | |
| Heysan | Free messaging on mobile phones | Acquired | — |
| Octopart | Octopart is a search engine for electronic components | Acquired | 11 |
| Twitch | A global community creating the future of live entertainment. | Acquired | 2000 |
| Weebly | Build a free website that grows with your business. | Acquired | 201 |
| Zenter | Zenter is the gmail of slides | Acquired | 2 |
| Socialmoth | Inactive | 2 | |
| Tsumobi | Messaging. | Inactive | 2 |
| View3 | Inactive | — | |
| Whitenoise | Inactive | 2 | |
| WriteWith | Inactive | 2 |
How this is measured
Measured 2026-09-26 from Y Combinator's company directory. Team size is the number YC lists for the company, where it lists one. Survival here means listed Active; Acquired and Public are shown separately because YC's listing does not say whether an acquisition was a good outcome.
All batchesShut-down companies
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