Investors / Cassius / Compare with S4S Ventures
Cassius vs S4S Ventures
Cassius lists 40 portfolio companies and has joined 2 funding rounds; S4S Ventures lists 12 companies and has joined 1 round. Cassius comes in most often at Seed (100% of its entries), S4S Ventures comes in most often at Series A (100% of its entries). 1 company is on both portfolios, among them Olyzon.
Show as a table
| Cassius | S4S Ventures | |
|---|---|---|
| Portfolio companies | 40 | 12 |
| Funding rounds joined | 2 | 1 |
| Rounds led | 0 | 1 |
| Rounds, last 12 months | 0 | 1 |
| Typical round it comes in at | $5M to $20M | $5M to $20M |
| Sites no longer answering | 0% | 0% |
Where they come in
share of entries by stageCassiusS4S Ventures
Show as a table
| Cassius | S4S Ventures | |
|---|---|---|
| Pre-seed | 0% | 0% |
| Seed | 100% | 0% |
| Series A | 0% | 100% |
| Series B | 0% | 0% |
| Growth | 0% | 0% |
Themes
share of checked companiesCassiusS4S Ventures
Show as a table
| Cassius | S4S Ventures | |
|---|---|---|
| AI & Machine Learning | 14% | 29% |
| Enterprise Software | 26% | 13% |
| Media & Entertainment | 13% | 25% |
| Consumer | 11% | 13% |
| E-commerce & Marketplaces | 11% | 4% |
| Space & Defense | 0% | 8% |
Companies both back
1Shared 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
Compare Cassius and S4S Ventures 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.
Work email, sign-in link by email. Already have an account? Log in- 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
$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/firms/cassius.vc/portfolio
# also
GET /v1/firms/s4sventures.com/portfolio
GET /v1/firms/cassius.vc/coinvestors