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Investors / Y Combinator / Compare with Zero Infinity Partners

Y Combinator vs Zero Infinity Partners

Y Combinator lists 5,151 portfolio companies and has joined 3,388 funding rounds; Zero Infinity Partners lists 28 companies and has joined 11 rounds. Y Combinator comes in most often at Seed (98% of its entries), Zero Infinity Partners comes in most often at Seed (40% of its entries). 2 companies are on both portfolios, among them Humoniq and Somos.

5,151Portfolio companies28
3,388Funding rounds joined11
2,960Rounds led2
579Rounds, last 12 months7
under $1MTypical round it comes in at$5M to $20M
0%Sites no longer answering0%
Show as a table
Y Combinator and Zero Infinity Partners, head to head
Y CombinatorZero Infinity Partners
Portfolio companies5,15128
Funding rounds joined3,38811
Rounds led2,9602
Rounds, last 12 months5797
Typical round it comes in atunder $1M$5M to $20M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed98%40%
Series A1%30%
Series B0%30%
Growth1%0%

Y CombinatorZero Infinity Partners

Show as a table
Entry stages of Y Combinator and Zero Infinity Partners, share of entries
Y CombinatorZero Infinity Partners
Pre-seed0%0%
Seed98%40%
Series A1%30%
Series B0%30%
Growth1%0%

Themes

share of checked companies
AI & Machine Learning26%43%
Industrial & Manufacturing4%16%
Fintech13%0%
Space & Defense5%13%
Healthcare & Biotech11%2%
Enterprise Software10%0%

Y CombinatorZero Infinity Partners

Show as a table
Themes of Y Combinator and Zero Infinity Partners, share of checked companies
Y CombinatorZero Infinity Partners
AI & Machine Learning26%43%
Industrial & Manufacturing4%16%
Fintech13%0%
Space & Defense5%13%
Healthcare & Biotech11%2%
Enterprise Software10%0%

Companies both back

2

Shared companies are those both firms' own portfolio pages list, each checked against the company's site. The same comparison through the API is POST /v1/overlap, for up to 20 firms. How the data is graded

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Compare Y Combinator and Zero Infinity Partners as data

Pull both portfolios and every co-investor through one API key or MCP, and lay up to 20 firms side by side with POST /v1/overlap. A free account adds Ask AI searches and alerts when either firm adds a company.

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  • Ask AI5 plain-English investor searches a day
  • Full listsEvery portfolio row and two-firm overlap
  • API and MCP100 REST or MCP calls a month, one key
  • AlertsFollow 5 investors for portfolio and fund changes
VCinfo API
$ curl -H "X-API-Key: YOUR_KEY" \
  https://api.vcinfo.io/v1/firms/ycombinator.com/portfolio

# also
GET /v1/firms/zeroinfinitypartners.com/portfolio
GET /v1/firms/ycombinator.com/coinvestors
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