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Investors / D3 / Compare with Y Combinator

D3 vs Y Combinator

D3 lists 18 portfolio companies and has joined 4 funding rounds; Y Combinator lists 5,151 companies and has joined 3,388 rounds. D3 comes in most often at Series A (75% of its entries), Y Combinator comes in most often at Seed (98% of its entries). 2 companies are on both portfolios, among them Albacore Inc. and Guardian Rf.

18Portfolio companies5,151
4Funding rounds joined3,388
0Rounds led2,960
2Rounds, last 12 months579
$100M or moreTypical round it comes in atunder $1M
0%Sites no longer answering0%
Show as a table
D3 and Y Combinator, head to head
D3Y Combinator
Portfolio companies185,151
Funding rounds joined43,388
Rounds led02,960
Rounds, last 12 months2579
Typical round it comes in at$100M or moreunder $1M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed25%98%
Series A75%1%
Series B0%0%
Growth0%1%

D3Y Combinator

Show as a table
Entry stages of D3 and Y Combinator, share of entries
D3Y Combinator
Pre-seed0%0%
Seed25%98%
Series A75%1%
Series B0%0%
Growth0%1%

Themes

share of checked companies
AI & Machine Learning87%26%
Fintech0%13%
Healthcare & Biotech0%11%
Enterprise Software0%10%
Industrial & Manufacturing7%4%
Education0%5%

D3Y Combinator

Show as a table
Themes of D3 and Y Combinator, share of checked companies
D3Y Combinator
AI & Machine Learning87%26%
Fintech0%13%
Healthcare & Biotech0%11%
Enterprise Software0%10%
Industrial & Manufacturing7%4%
Education0%5%

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 D3 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/d3.vc/portfolio

# also
GET /v1/firms/ycombinator.com/portfolio
GET /v1/firms/d3.vc/coinvestors
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