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Investors / 408 Ventures / Compare with CapitalX

408 Ventures vs CapitalX

408 Ventures lists 15 portfolio companies and has joined 0 funding rounds; CapitalX lists 34 companies and has joined 1 round. CapitalX comes in most often at Seed (100% of its entries). 1 company is on both portfolios, among them People.ai.

15Portfolio companies34
0Funding rounds joined1
0Rounds led0
0Rounds, last 12 months0
n/aTypical round it comes in at$5M to $20M
0%Sites no longer answering0%
Show as a table
408 Ventures and CapitalX, head to head
408 VenturesCapitalX
Portfolio companies1534
Funding rounds joined01
Rounds led00
Rounds, last 12 months00
Typical round it comes in atn/a$5M to $20M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed0%100%
Series A0%0%
Series B0%0%
Growth0%0%

408 VenturesCapitalX

Show as a table
Entry stages of 408 Ventures and CapitalX, share of entries
408 VenturesCapitalX
Pre-seed0%0%
Seed0%100%
Series A0%0%
Series B0%0%
Growth0%0%

Themes

share of checked companies
AI & Machine Learning29%22%
Fintech0%19%
Cybersecurity17%3%
Enterprise Software17%14%
E-commerce & Marketplaces0%9%
Media & Entertainment8%0%

408 VenturesCapitalX

Show as a table
Themes of 408 Ventures and CapitalX, share of checked companies
408 VenturesCapitalX
AI & Machine Learning29%22%
Fintech0%19%
Cybersecurity17%3%
Enterprise Software17%14%
E-commerce & Marketplaces0%9%
Media & Entertainment8%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 408 Ventures and CapitalX 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/408ventures.com/portfolio

# also
GET /v1/firms/capitalx.company/portfolio
GET /v1/firms/408ventures.com/coinvestors
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing