Investors / Block54 / Compare with Castrum Capital
Block54 vs Castrum Capital
Block54 lists 10 portfolio companies and has joined 0 funding rounds; Castrum Capital lists 61 companies and has joined 3 rounds. Castrum Capital comes in most often at Seed (33% of its entries). 1 company is on both portfolios, among them Cookie3.
Show as a table
| Block54 | Castrum Capital | |
|---|---|---|
| Portfolio companies | 10 | 61 |
| Funding rounds joined | 0 | 3 |
| Rounds led | 0 | 1 |
| Rounds, last 12 months | 0 | 3 |
| Typical round it comes in at | n/a | $5M to $20M |
| Sites no longer answering | 0% | 0% |
Where they come in
share of entries by stageBlock54Castrum Capital
Show as a table
| Block54 | Castrum Capital | |
|---|---|---|
| Pre-seed | 0% | 0% |
| Seed | 0% | 33% |
| Series A | 0% | 33% |
| Series B | 0% | 0% |
| Growth | 0% | 33% |
Themes
share of checked companiesBlock54Castrum Capital
Show as a table
| Block54 | Castrum Capital | |
|---|---|---|
| Fintech | 44% | 34% |
| AI & Machine Learning | 0% | 26% |
| Crypto & Web3 | 17% | 2% |
| Cybersecurity | 11% | 8% |
| Gaming | 6% | 9% |
| Media & Entertainment | 6% | 7% |
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 Block54 and Castrum Capital 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/block54.capital/portfolio
# also
GET /v1/firms/castrum.capital/portfolio
GET /v1/firms/block54.capital/coinvestors