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Investors / Castle Island Ventures / Compare with Nava Ventures

Castle Island Ventures vs Nava Ventures

Castle Island Ventures lists 25 portfolio companies and has joined 15 funding rounds; Nava Ventures lists 18 companies and has joined 6 rounds. Castle Island Ventures comes in most often at Seed (50% of its entries), Nava Ventures comes in most often at Series A (83% of its entries). 1 company is on both portfolios, among them Cyclops.

25Portfolio companies18
15Funding rounds joined6
7Rounds led4
10Rounds, last 12 months6
$5M to $20MTypical round it comes in at$20M to $100M
0%Sites no longer answering0%
Show as a table
Castle Island Ventures and Nava Ventures, head to head
Castle Island VenturesNava Ventures
Portfolio companies2518
Funding rounds joined156
Rounds led74
Rounds, last 12 months106
Typical round it comes in at$5M to $20M$20M to $100M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed50%0%
Series A42%83%
Series B8%0%
Growth0%17%

Castle Island VenturesNava Ventures

Show as a table
Entry stages of Castle Island Ventures and Nava Ventures, share of entries
Castle Island VenturesNava Ventures
Pre-seed0%0%
Seed50%0%
Series A42%83%
Series B8%0%
Growth0%17%

Themes

share of checked companies
Fintech58%23%
AI & Machine Learning3%36%
Cybersecurity11%7%
Crypto & Web311%3%
Media & Entertainment0%10%
Healthcare & Biotech3%7%

Castle Island VenturesNava Ventures

Show as a table
Themes of Castle Island Ventures and Nava Ventures, share of checked companies
Castle Island VenturesNava Ventures
Fintech58%23%
AI & Machine Learning3%36%
Cybersecurity11%7%
Crypto & Web311%3%
Media & Entertainment0%10%
Healthcare & Biotech3%7%

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 Castle Island Ventures and Nava 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.

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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/castleisland.vc/portfolio

# also
GET /v1/firms/nava.vc/portfolio
GET /v1/firms/castleisland.vc/coinvestors
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