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Castle Island Ventures
vcActive seed-stage investor. 74 investments tracked, primarily in infrastructure and defi and cefi. Led 25 rounds. Recent: Valinor Digital: $25 Million, Valinor, XFX, Cyclops, Birch Hill Holdings.
Rounds (74)
| Date | Project | Type | Amount | Valuation | Sector |
|---|---|---|---|---|---|
| Mar 30, 2026 | Valinor Digital: $25 Million | seed | $25.0M | — | defi |
| Mar 30, 2026 | Valinor | seed | $25.0M | — | defi |
| Mar 26, 2026 | XFX | series_a | $17.0M | — | banking |
| Mar 3, 2026 | Cyclops | strategic | $8.0M | — | payments |
| Feb 10, 2026 | Birch Hill Holdings | pre_seed | $2.5M | — | rwa |
| Dec 4, 2025 | Gondor | pre_seed | $2.5M | — | prediction market |
| Nov 5, 2025 | Arx Research | seed | $6.1M | — | infrastructure |
| Oct 20, 2025 | Tesser | seed | $4.5M | — | payments |
| Sep 24, 2025 | RockSolid | pre_seed | $2.8M | — | insurtech |
| Aug 7, 2025 | BOB | strategic | $9.5M | — | defi |
| Jul 30, 2025 | Stable | seed | $28.0M | — | l1 |
| Jul 27, 2025 | Pear Protocol | strategic | $4.1M | — | defi |
| Jun 19, 2025 | Project Eleven | $6.0M | — | ||
| Jun 16, 2025 | XFX | seed | $9.1M | — | cefi |
| Jun 10, 2025 | TYB | series_a | $11.0M | — | social platform |
| May 26, 2025 | Beam Cash | $7.0M | — | payments | |
| May 11, 2025 | Nirvana Labs | seed | $6.0M | — | infrastructure |
| Feb 6, 2025 | Coala Pay | seed | $3.5M | — | stablecoin infrastructure |
| Oct 21, 2024 | Hata | seed | $4.2M | — | centralized exchange |
| Oct 8, 2024 | delta | $11.0M | — | infrastructure | |
| Aug 21, 2024 | Arch | seed | $5.0M | — | cefi |
| Aug 21, 2024 | SatLayer | pre_seed | $8.0M | — | liquid restaking protocol |
| Aug 6, 2024 | Andrena | series a+ | $18.0M | — | |
| Jul 24, 2024 | Kintsu | seed | $4.0M | — | liquid staking protocol |
| Jul 18, 2024 | Nirvana Labs | seed | $4.0M | — | infrastructure |
| Jul 1, 2024 | SendBlocks | seed | $8.2M | — | infrastructure |
| Jun 5, 2024 | Mountain Protocol | series_a | $8.0M | — | fintech |
| Apr 9, 2024 | Alpen Labs | seed | $10.6M | — | infrastructure |
| Apr 8, 2024 | Monad | $225.0M | — | l1 | |
| Mar 26, 2024 | BOB | seed | $10.0M | — | l2 |
| Dec 12, 2023 | Dynamic Labs | series_a | $13.5M | — | web3 |
| Dec 6, 2023 | Babylon | $18.0M | — | liquid staking protocol | |
| Dec 5, 2023 | Pyth Network | strategic | — | — | infrastructure |
| Dec 4, 2023 | Pyth Network | strategic | — | — | infrastructure |
| Sep 11, 2023 | Mountain Protocol | seed | — | — | defi |
| Sep 10, 2023 | Mountain Protocol | seed | — | — | defi |
| May 19, 2023 | PYOR | seed | $4.0M | — | |
| Apr 11, 2023 | Cat Labs | $4.3M | — | ||
| Jan 17, 2023 | Arch | $2.8M | — | cefi | |
| Jan 11, 2023 | Alkimiya | venture round | $7.2M | — | defi |
| Nov 8, 2022 | Fordefi | seed | $18.0M | — | defi |
| Oct 25, 2022 | Kollider | seed | $2.4M | — | |
| Sep 8, 2022 | Sentiment | seed | $2.4M | — | defi |
| Aug 10, 2022 | Ansible Labs | seed | $7.0M | — | |
| Apr 12, 2022 | Socket Supply | seed | $3.5M | — | infrastructure |
| Dec 6, 2021 | TRM Labs | series_b | $60.0M | — | |
| Nov 7, 2021 | Meow | seed | $5.0M | — | |
| Nov 7, 2021 | Notabene | series_a | $10.2M | — | |
| Oct 18, 2021 | Mint Songs | seed | $3.0M | — | nft |
| Sep 25, 2021 | Yellow Card | series_a | $15.0M | — | |
| Aug 8, 2021 | Pintu | series_a | $35.0M | — | |
| Aug 2, 2021 | ZenLedger | series_a | $6.0M | — | taxes |
| Jun 14, 2021 | Bitwise | series_b | $70.0M | — | |
| May 26, 2021 | Talos | series_a | $40.0M | — | |
| May 24, 2021 | Pintu | series_a | $6.0M | — | centralized exchange |
| May 4, 2021 | CoinMetrics | series_b | $15.0M | — | data |
| Mar 30, 2021 | Evaluate.Market | pre_seed | $1.6M | — | nft |
| Mar 17, 2021 | Tally | $1.5M | — | defi | |
| Mar 10, 2021 | River Financial | series_a | $12.0M | — | mining |
| Feb 23, 2021 | DFX Finance | seed | $5.0M | — | defi |
| Feb 18, 2021 | BlockFi | series_d | $350.0M | — | |
| Dec 3, 2020 | Valiu | seed | $5.3M | — | |
| Nov 23, 2020 | Notabene | seed | $1.8M | — | infrastructure |
| Aug 19, 2020 | BlockFi | series_c | $50.0M | — | cefi |
| Jun 16, 2020 | River Financial | seed | $5.7M | — | cefi |
| Mar 30, 2020 | Manetu | seed | $3.5M | — | infrastructure |
| Mar 25, 2020 | Coin Metrics | series_a | $6.0M | — | data |
| Mar 4, 2020 | Zabo | seed | $2.5M | — | infrastructure |
| Feb 12, 2020 | BlockFi | series_b | $30.0M | — | cefi |
| Dec 16, 2019 | ZenLedger | seed | $3.4M | — | taxes |
| Sep 23, 2019 | Flipside | seed | $7.1M | — | data |
| Apr 29, 2019 | ErisX | series_b | $20.0M | — | cefi |
| Nov 28, 2018 | Flipside Crypto | seed | $1.0M | — | data |
| Sep 16, 2018 | ZenLedger | seed | $1.5M | — | taxes |
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