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Investors / CapitalX / Compare with Y Combinator

CapitalX vs Y Combinator

CapitalX lists 34 portfolio companies and has joined 1 funding round; Y Combinator lists 5,152 companies and has joined 3,388 rounds. CapitalX comes in most often at Seed (100% of its entries), Y Combinator comes in most often at Seed (98% of its entries). 19 companies are on both portfolios, among them Albedo, algolia and AlpacaJapan.

34Portfolio companies5,152
1Funding rounds joined3,388
0Rounds led2,960
0Rounds, last 12 months579
$5M to $20MTypical round it comes in atunder $1M
0%Sites no longer answering0%
Show as a table
CapitalX and Y Combinator, head to head
CapitalXY Combinator
Portfolio companies345,152
Funding rounds joined13,388
Rounds led02,960
Rounds, last 12 months0579
Typical round it comes in at$5M to $20Munder $1M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed100%98%
Series A0%1%
Series B0%0%
Growth0%1%

CapitalXY Combinator

Show as a table
Entry stages of CapitalX and Y Combinator, share of entries
CapitalXY Combinator
Pre-seed0%0%
Seed100%98%
Series A0%1%
Series B0%0%
Growth0%1%

Themes

share of checked companies
AI & Machine Learning22%26%
Fintech19%13%
Enterprise Software14%10%
Healthcare & Biotech7%11%
E-commerce & Marketplaces9%5%
Education3%5%

CapitalXY Combinator

Show as a table
Themes of CapitalX and Y Combinator, share of checked companies
CapitalXY Combinator
AI & Machine Learning22%26%
Fintech19%13%
Enterprise Software14%10%
Healthcare & Biotech7%11%
E-commerce & Marketplaces9%5%
Education3%5%

Companies both back

19

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 CapitalX and Y Combinator 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/capitalx.company/portfolio

# also
GET /v1/firms/ycombinator.com/portfolio
GET /v1/firms/capitalx.company/coinvestors
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