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Investors / C4 Ventures / Compare with ION Crossover Partners

C4 Ventures vs ION Crossover Partners

C4 Ventures lists 13 portfolio companies and has joined 5 funding rounds; ION Crossover Partners lists 21 companies and has joined 4 rounds. C4 Ventures comes in most often at Series B (50% of its entries), ION Crossover Partners comes in most often at Series B (50% of its entries). 1 company is on both portfolios, among them Via.

13Portfolio companies21
5Funding rounds joined4
1Rounds led3
1Rounds, last 12 months2
$20M to $100MTypical round it comes in at$100M or more
0%Sites no longer answering0%
Show as a table
C4 Ventures and ION Crossover Partners, head to head
C4 VenturesION Crossover Partners
Portfolio companies1321
Funding rounds joined54
Rounds led13
Rounds, last 12 months12
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%
Seed25%0%
Series A25%0%
Series B50%50%
Growth0%50%

C4 VenturesION Crossover Partners

Show as a table
Entry stages of C4 Ventures and ION Crossover Partners, share of entries
C4 VenturesION Crossover Partners
Pre-seed0%0%
Seed25%0%
Series A25%0%
Series B50%50%
Growth0%50%

Themes

share of checked companies
AI & Machine Learning32%20%
Cybersecurity5%20%
Robotics & Hardware16%0%
Media & Entertainment0%14%
Fintech0%14%
Enterprise Software5%11%

C4 VenturesION Crossover Partners

Show as a table
Themes of C4 Ventures and ION Crossover Partners, share of checked companies
C4 VenturesION Crossover Partners
AI & Machine Learning32%20%
Cybersecurity5%20%
Robotics & Hardware16%0%
Media & Entertainment0%14%
Fintech0%14%
Enterprise Software5%11%

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 C4 Ventures and ION Crossover 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/c4v.com/portfolio

# also
GET /v1/firms/ion-am.com/portfolio
GET /v1/firms/c4v.com/coinvestors
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