Y Combinator's directory lists 21 companies in the Winter 2008 batch: 2 Active, 5 Acquired, 0 Public and 14 Inactive. 67% of Winter 2008 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 2008
| Company | What they do | Status | Team |
|---|---|---|---|
| Ninite | Simple third-party app patching and deployment for Windows. | Active | 2 |
| RescueTime | Take Back Control of your Time | Active | 15 |
| 280 North | Acquired | 11 | |
| A Thinking Ape | We build communities through massively multiplayer mobile games | Acquired | 75 |
| Heroku | Enabling developers to build and run applications in the cloud. | Acquired | 300 |
| Machine Zone | Pioneers of mobile social gaming. | Acquired | 501 |
| Omnisio | Edit and enhance online video. Acquired by Google in July 2008. | Acquired | — |
| BitSample | Inactive | — | |
| Deluux | Inactive | 2 | |
| FathomDB | Inactive | — | |
| Insoshi | Inactive | — | |
| Joberator | Inactive | 2 | |
| Kirkland North | Inactive | 2 | |
| MightyQuiz | Inactive | 2 | |
| Mixwit | Online mixtape service (create and share mixtapes). Launched as part… | Inactive | 2 |
| Snaptalent | Inactive | 2 | |
| Socialbrowse | Inactive | 2 | |
| Tipjoy | social micropayments | Inactive | 2 |
| Trigger | Better PhoneGap. | Inactive | 11 |
| Wundrbar | Inactive | 2 | |
| YumDots | 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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