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Investors / Colosseum / Compare with Y Combinator

Colosseum vs Y Combinator

Colosseum lists 39 portfolio companies and has joined 3 funding rounds; Y Combinator lists 5,150 companies and has joined 3,388 rounds. Colosseum comes in most often at Seed (67% of its entries), Y Combinator comes in most often at Seed (98% of its entries). 1 company is on both portfolios, among them Tempo.

39Portfolio companies5,150
3Funding rounds joined3,388
1Rounds led2,960
2Rounds, last 12 months579
$1M to $5MTypical round it comes in atunder $1M
0%Sites no longer answering0%
Show as a table
Colosseum and Y Combinator, head to head
ColosseumY Combinator
Portfolio companies395,150
Funding rounds joined33,388
Rounds led12,960
Rounds, last 12 months2579
Typical round it comes in at$1M to $5Munder $1M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed67%98%
Series A33%1%
Series B0%0%
Growth0%1%

ColosseumY Combinator

Show as a table
Entry stages of Colosseum and Y Combinator, share of entries
ColosseumY Combinator
Pre-seed0%0%
Seed67%98%
Series A33%1%
Series B0%0%
Growth0%1%

Themes

share of checked companies
Fintech45%13%
AI & Machine Learning9%26%
Healthcare & Biotech0%11%
Enterprise Software7%10%
E-commerce & Marketplaces9%5%
Crypto & Web35%0%

ColosseumY Combinator

Show as a table
Themes of Colosseum and Y Combinator, share of checked companies
ColosseumY Combinator
Fintech45%13%
AI & Machine Learning9%26%
Healthcare & Biotech0%11%
Enterprise Software7%10%
E-commerce & Marketplaces9%5%
Crypto & Web35%0%

Companies both back

1

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 Colosseum 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/colosseum.com/portfolio

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