Investors / Blockchain Capital / Compare with Castle Island Ventures
Blockchain Capital vs Castle Island Ventures
Blockchain Capital lists 98 portfolio companies and has joined 16 funding rounds; Castle Island Ventures lists 25 companies and has joined 15 rounds. Blockchain Capital comes in most often at Seed (33% of its entries), Castle Island Ventures comes in most often at Seed (50% of its entries). 3 companies are on both portfolios, among them Bitwise, TRM Labs and Yellow Card.
Show as a table
| Blockchain Capital | Castle Island Ventures | |
|---|---|---|
| Portfolio companies | 98 | 25 |
| Funding rounds joined | 16 | 15 |
| Rounds led | 10 | 7 |
| Rounds, last 12 months | 11 | 10 |
| 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 stageBlockchain CapitalCastle Island Ventures
Show as a table
| Blockchain Capital | Castle Island Ventures | |
|---|---|---|
| Pre-seed | 0% | 0% |
| Seed | 33% | 50% |
| Series A | 33% | 42% |
| Series B | 7% | 8% |
| Growth | 27% | 0% |
Themes
share of checked companiesBlockchain CapitalCastle Island Ventures
Show as a table
| Blockchain Capital | Castle Island Ventures | |
|---|---|---|
| Fintech | 47% | 58% |
| Crypto & Web3 | 14% | 11% |
| Cybersecurity | 8% | 11% |
| AI & Machine Learning | 9% | 3% |
| Real Estate & Construction | 0% | 5% |
| Legal & Compliance | 0% | 5% |
Companies both back
3Shared 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 Blockchain Capital and Castle Island 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/blockchaincapital.com/portfolio
# also
GET /v1/firms/castleisland.vc/portfolio
GET /v1/firms/blockchaincapital.com/coinvestors