Y Combinator's directory lists 16 companies in the Winter 2009 batch: 1 Active, 5 Acquired, 1 Public and 9 Inactive. 56% of Winter 2009 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 2009
| Company | What they do | Status | Team |
|---|---|---|---|
| Volantio | Post-booking revenue and capacity optimization for airlines… | Active | 19 |
| Cloudkick | Acquired | 11 | |
| Divvyshot | Acquired | 2 | |
| Echodio | Sync and stream your music across any device. Acquired in 2009. | Acquired | 2 |
| Heyzap | Heyzap (acquired by Fyber for $45m in 2016) is one of the largest… | Acquired | 11 |
| reMail | Email search for iPhone. Acquired by Google in Feb 2010. | Acquired | 1 |
| Airbnb | Book accommodations around the world. | Public | 6132 |
| Foodoro | Inactive | 11 | |
| Nambii | Inactive | — | |
| PetaSales | Inactive | 2 | |
| Picurio | Inactive | 2 | |
| Recurious | Inactive | — | |
| Skysheet | Browser-based spreadsheet. | Inactive | 2 |
| Spaces Life | Inactive | — | |
| Voxli | Inactive | 2 | |
| Wattvision | Sensors and software for energy tracking. Like 'fitbit' for your… | 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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