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Investors / 13books Capital / Compare with Operator Partners

13books Capital vs Operator Partners

13books Capital lists 28 portfolio companies and has joined 10 funding rounds; Operator Partners lists 171 companies and has joined 22 rounds. 13books Capital comes in most often at Series A (67% of its entries), Operator Partners comes in most often at Series A (50% of its entries). 1 company is on both portfolios, among them Runa.

28Portfolio companies171
10Funding rounds joined22
6Rounds led1
8Rounds, last 12 months15
$5M to $20MTypical round it comes in at$20M to $100M
0%Sites no longer answering0%
Show as a table
13books Capital and Operator Partners, head to head
13books CapitalOperator Partners
Portfolio companies28171
Funding rounds joined1022
Rounds led61
Rounds, last 12 months815
Typical round it comes in at$5M to $20M$20M to $100M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed11%0%
Seed22%23%
Series A67%50%
Series B0%23%
Growth0%5%

13books CapitalOperator Partners

Show as a table
Entry stages of 13books Capital and Operator Partners, share of entries
13books CapitalOperator Partners
Pre-seed11%0%
Seed22%23%
Series A67%50%
Series B0%23%
Growth0%5%

Themes

share of checked companies
Fintech46%18%
AI & Machine Learning12%18%
Healthcare & Biotech6%17%
Space & Defense10%3%
Enterprise Software0%9%
Crypto & Web38%0%

13books CapitalOperator Partners

Show as a table
Themes of 13books Capital and Operator Partners, share of checked companies
13books CapitalOperator Partners
Fintech46%18%
AI & Machine Learning12%18%
Healthcare & Biotech6%17%
Space & Defense10%3%
Enterprise Software0%9%
Crypto & Web38%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 13books Capital and Operator 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/13bookscapital.com/portfolio

# also
GET /v1/firms/operatorpartners.com/portfolio
GET /v1/firms/13bookscapital.com/coinvestors
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing