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Investors / B Capital / Compare with Marunouchi Innovation Partners

B Capital vs Marunouchi Innovation Partners

B Capital lists 119 portfolio companies and has joined 21 funding rounds; Marunouchi Innovation Partners lists 12 companies and has joined 6 rounds. B Capital comes in most often at Series A (45% of its entries), Marunouchi Innovation Partners comes in most often at Growth (50% of its entries). 2 companies are on both portfolios, among them Fervo Energy and Omnidian.

119Portfolio companies12
21Funding rounds joined6
10Rounds led0
21Rounds, last 12 months3
$20M to $100MTypical round it comes in at$100M or more
0%Sites no longer answering0%
Show as a table
B Capital and Marunouchi Innovation Partners, head to head
B CapitalMarunouchi Innovation Partners
Portfolio companies11912
Funding rounds joined216
Rounds led100
Rounds, last 12 months213
Typical round it comes in at$20M to $100M$100M or more
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed15%0%
Series A45%17%
Series B15%33%
Growth25%50%

B CapitalMarunouchi Innovation Partners

Show as a table
Entry stages of B Capital and Marunouchi Innovation Partners, share of entries
B CapitalMarunouchi Innovation Partners
Pre-seed0%0%
Seed15%0%
Series A45%17%
Series B15%33%
Growth25%50%

Themes

share of checked companies
Education8%38%
Healthcare & Biotech21%0%
Industrial & Manufacturing7%19%
AI & Machine Learning16%14%
E-commerce & Marketplaces4%10%
Space & Defense6%10%

B CapitalMarunouchi Innovation Partners

Show as a table
Themes of B Capital and Marunouchi Innovation Partners, share of checked companies
B CapitalMarunouchi Innovation Partners
Education8%38%
Healthcare & Biotech21%0%
Industrial & Manufacturing7%19%
AI & Machine Learning16%14%
E-commerce & Marketplaces4%10%
Space & Defense6%10%

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 B Capital and Marunouchi Innovation 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/b.capital/portfolio

# also
GET /v1/firms/marunouchi-innovation.com/portfolio
GET /v1/firms/b.capital/coinvestors
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