Y Combinator's directory lists 7 companies in the Winter 2006 batch: 0 Active, 4 Acquired, 0 Public and 3 Inactive. 43% of Winter 2006 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 2006
| Company | What they do | Status | Team |
|---|---|---|---|
| Clustrix | Acquired | 51 | |
| Inkling | Acquired | 11 | |
| Project Wedding | Acquired | 2 | |
| Wufoo | Online form builder. | Acquired | 11 |
| Audiobeta | Inactive | — | |
| Flagr | Inactive | 2 | |
| Snipshot | We sold Snipshot to Ansa in 2013. | Inactive | — |
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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