20n went through Y Combinator in the Winter 2015 batch and describes itself as: Using AI to predict biochemistry for manufacturing and therapeutics. As of November 10, 2026, Y Combinator's directory lists it as Inactive (Y Combinator directory entry, November 17, 2014).
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Key facts
- · Batch: Winter 2015 · 20n in the Y Combinator directory
- · Industry: Healthcare · 20n in the Y Combinator directory
- · Team size: 2 · 20n in the Y Combinator directory
- · Based: San Francisco, CA, USA · 20n in the Y Combinator directory
- · Status: Inactive, as listed by Y Combinator · 20n in the Y Combinator directory
20n went through Y Combinator in the Winter 2015 batch, describing itself as Using AI to predict biochemistry for manufacturing and therapeutics. Y Combinator's company directory lists it as Inactive. The directory does not say why a company stopped, and this page does not guess.
- Batch
- Winter 2015
- What they did
- Using AI to predict biochemistry for manufacturing and therapeutics
- Industry
- Healthcare
- Team size
- 2
- Based
- San Francisco, CA, USA
- Status
- Inactive, as listed by Y Combinator
Its batch
Winter 2015 had 110 companies in YC's listing: 40 Active, 34 Acquired, 4 Public and 32 Inactive, so 20n is one of 32 companies from that batch listed as Inactive (29%). Across YC batches at least two years old, 23% of companies are listed Inactive.
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.
The record: 20n in the Y Combinator directory. Measured 2026-11-10 from Y Combinator's company directory.
YC Winter 2015All shut-down YC companiesYC outcomes
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Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News
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Sources
1 cited source found
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