Y Combinator Winter 2010 batch: all 27 companies.
YC's public directory lists 27 companies in the Y Combinator Winter 2010 batch: 1 active, 14 acquired, 12 inactive and 0 public, by YC's own labels. The most common industries are B2B (17), Consumer (9) and Real Estate and Construction (1).
Companies in the YC Winter 2010 batch
27 companies in this view
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- Industry
- B2B · Retail
- Location, as listed
- San Francisco, CA, USATeam size 51
- Status, as YC lists it
- Acquired
- Industry
- B2B · Marketing
- Location, as listed
- Los Angeles, CA, USA; Santa Monica, CA, USATeam size 11
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Content
- Location, as listed
- San Francisco, CA, USATeam size 11
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Social
- Location, as listed
- San Francisco, CA, USATeam size 2
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Home and Personal
- Location, as listed
- San Francisco, CA, USATeam size 251
- Status, as YC lists it
- Acquired
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Francisco, CA, USA
- Status, as YC lists it
- Acquired
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Francisco, CA, USA
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Home and Personal
- Location, as listed
- San Francisco, CA, USATeam size 11
- Status, as YC lists it
- Acquired
- Industry
- B2B · Analytics
- Location, as listed
- San Francisco, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Boston, MA, USATeam size 2
- Status, as YC lists it
- Acquired
- Industry
- B2B · Sales
- Location, as listed
- San Francisco, CA, USA; Palo Alto, CA, USATeam size 2
- Status, as YC lists it
- Acquired
- Industry
- B2B · Retail
- Location, as listed
- New York City, NY, USA; New York, NY, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Retail
- Location, as listed
- Not listed
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Gaming
- Location, as listed
- San Francisco, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Marketing
- Location, as listed
- San Francisco, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Operations
- Location, as listed
- San Francisco, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Retail
- Location, as listed
- San Francisco, CA, USA; Redwood City, CA, USATeam size 1
- Status, as YC lists it
- Acquired
- Industry
- Consumer
- Location, as listed
- Not listed
- Status, as YC lists it
- Inactive
- Industry
- Real Estate and Construction · Housing and Real Estate
- Location, as listed
- San Francisco, CA, USATeam size 2
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Gaming
- Location, as listed
- San Francisco, CA, USA; Mountain View, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Dublin, County Dublin, IrelandTeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Francisco, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Content
- Location, as listed
- San Francisco, CA, USA
- Status, as YC lists it
- Acquired
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Francisco, CA, USATeam size 1,500
- Status, as YC lists it
- AcquiredYC top company
- Industry
- B2B · Marketing
- Location, as listed
- Austin, TX, USATeam size 45
- Status, as YC lists it
- Active
- Industry
- B2B · Infrastructure
- Location, as listed
- San Francisco, CA, USATeam size 11
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Content
- Location, as listed
- San Francisco, CA, USATeam size 2
- Status, as YC lists it
- Inactive
How to use this list
- Filter by industry, listed location or status, or search for a company, a city or one of YC's tags.
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- Status is YC's label, not our assessment. Active does not mean funded, growing or looking for suppliers.
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About the Winter 2010 batch
The directory lists 27 Winter 2010 companies, most often first listed in San Francisco (20), Los Angeles (1) and New York City (1). YC flags 1 of them as top companies.
About this data
Each record comes from YC's public startup directory, through the open-source yc-oss mirror of it, pulled on September 13, 2026. We show YC's own industry, location and status labels and none of YC's company descriptions. The directory lists launched companies YC shows publicly, so a company that has left it will not appear here.
If a record is wrong, use Suggest a correction on its row and include a source. We check corrections against YC's directory and the company's own site.
Sources
Checked September 13, 2026. YC updates its directory, so counts and labels change. Mining Wells is not affiliated with Y Combinator.
- Y Combinator: Startup directory, Winter 2010 batch: the companies, their status, industry and listed locations
- yc-oss: open-source mirror of YC's directory (pulled September 13, 2026): the snapshot these records come from
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