Castle Island Ventures is a venture capital firm focused exclusively on public blockchains. The firm supports entrepreneurs building infrastructure and application companies for these transformative protocols. It invests in startups across sectors like financial services, enterprise software, cybersecurity, financial market infrastructure, consumer fintech, and new blockchain applications. In Africa, Castle Island Ventures has demonstrated a Pan-African focus through investments in crypto and Web3 infrastructure. The firm participated in three funding rounds for Yellowcard, a stablecoin and fiat payments platform for emerging markets: a Series A of $15.0M in September 2021, a Series B of $40.0M in September 2022, and a Series C of $33.0M in October 2024. These investments span Series A, B, and C stages, totaling $88.0M from September 2021 to October 2024. Castle Island Ventures frequently co-invests with prominent firms such as Third Prime Capital, Polychain Capital, and Valar Ventures, reflecting strong networks in the blockchain investment ecosystem.
Breet — Crypto & Stablecoins Payment API for African Businesses 
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