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Investors / Big Brain Holdings / Compare with Faction

Big Brain Holdings vs Faction

Big Brain Holdings lists 78 portfolio companies and has joined 11 funding rounds; Faction lists 45 companies and has joined 1 round. Big Brain Holdings comes in most often at Seed (100% of its entries), Faction comes in most often at Seed (100% of its entries). 3 companies are on both portfolios, among them Flashbots, hyperbolic and Monad.

78Portfolio companies45
11Funding rounds joined1
0Rounds led0
5Rounds, last 12 months0
$5M to $20MTypical round it comes in at$20M to $100M
0%Sites no longer answering0%
Show as a table
Big Brain Holdings and Faction, head to head
Big Brain HoldingsFaction
Portfolio companies7845
Funding rounds joined111
Rounds led00
Rounds, last 12 months50
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-seed0%0%
Seed100%100%
Series A0%0%
Series B0%0%
Growth0%0%

Big Brain HoldingsFaction

Show as a table
Entry stages of Big Brain Holdings and Faction, share of entries
Big Brain HoldingsFaction
Pre-seed0%0%
Seed100%100%
Series A0%0%
Series B0%0%
Growth0%0%

Themes

share of checked companies
Fintech30%51%
AI & Machine Learning22%13%
Crypto & Web37%14%
Cybersecurity10%9%
Industrial & Manufacturing6%0%
Robotics & Hardware5%0%

Big Brain HoldingsFaction

Show as a table
Themes of Big Brain Holdings and Faction, share of checked companies
Big Brain HoldingsFaction
Fintech30%51%
AI & Machine Learning22%13%
Crypto & Web37%14%
Cybersecurity10%9%
Industrial & Manufacturing6%0%
Robotics & Hardware5%0%

Companies both back

3

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 Big Brain Holdings and Faction 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/bigbrain.holdings/portfolio

# also
GET /v1/firms/faction.vc/portfolio
GET /v1/firms/bigbrain.holdings/coinvestors
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing