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Investors / Diagram / Compare with Y Combinator

Diagram vs Y Combinator

Diagram lists 42 portfolio companies and has joined 0 funding rounds; Y Combinator lists 5,150 companies and has joined 3,388 rounds. Y Combinator comes in most often at Seed (98% of its entries). 2 companies are on both portfolios, among them AlpacaJapan and Indemni.

42Portfolio companies5,150
0Funding rounds joined3,388
0Rounds led2,960
0Rounds, last 12 months579
n/aTypical round it comes in atunder $1M
0%Sites no longer answering0%
Show as a table
Diagram and Y Combinator, head to head
DiagramY Combinator
Portfolio companies425,150
Funding rounds joined03,388
Rounds led02,960
Rounds, last 12 months0579
Typical round it comes in atn/aunder $1M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed0%98%
Series A0%1%
Series B0%0%
Growth0%1%

DiagramY Combinator

Show as a table
Entry stages of Diagram and Y Combinator, share of entries
DiagramY Combinator
Pre-seed0%0%
Seed0%98%
Series A0%1%
Series B0%0%
Growth0%1%

Themes

share of checked companies
Fintech33%13%
AI & Machine Learning19%26%
Healthcare & Biotech10%11%
Enterprise Software8%10%
Space & Defense5%5%
Industrial & Manufacturing5%4%

DiagramY Combinator

Show as a table
Themes of Diagram and Y Combinator, share of checked companies
DiagramY Combinator
Fintech33%13%
AI & Machine Learning19%26%
Healthcare & Biotech10%11%
Enterprise Software8%10%
Space & Defense5%5%
Industrial & Manufacturing5%4%

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 Diagram 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/diagram.vc/portfolio

# also
GET /v1/firms/ycombinator.com/portfolio
GET /v1/firms/diagram.vc/coinvestors
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