VC firm / fund

Castle Island Ventures

Castle Island Ventures has backed 3 tracked startups across Fintech, totalling $228M raised. Public investment activity below — sourced from Datapile’s funding database.

3
Tracked deals
$228M
Total raised
2026
Active since
$20M
Median round

Deals over time

1Q2 '262Q3 '26

What Castle Island Ventures invests in

Fintech3 · 100%

Round-size distribution

$5–25M2$100M+1

Total round sizes (not this investor’s specific check) across their tracked deals.

Frequent co-investors

Andreessen Horowitz1Circle1Coinbase Ventures1Contour Venture Partners1Endeavor Catalyst1F-Prime Capital1General Catalyst Customer Value Fund1GPT Ventures1Lasagna Ventures1Nava Ventures1QED Investors1Shift41

Recent investments

CompanySectorRoundWhen
Félix Pago Fintech$200M · Series CSep 2026
Cyclops Fintech$20M · Series AJul 2026
Cyclops Fintech$8MMay 2026

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Aggregated from public funding announcements in Datapile’s database. Investor names are matched from round data and may include name variants.

Castle Island Ventures — Investment Activity & Portfolio (2026) | Datapile