K

Castle Island Ventures logo

Castle Island Ventures

Crunchbase
Pitchbook
Crunchbase

Deals on record

6

Common Fundraising Type

Seed

Surus logo
Surus

Asset management • Custody platform

Restive Ventures logo
Protocol VC logo
Protagonist logo
Propel Ventures logo

Surus provides an institutional-grade platform for managing and securing tokenized assets and onchain finance operations.

Seed
$8M
02/14/2025
Article
CAT Labs logo
CAT Labs

Cryptocurrency • AI

M13 logo
Hash3 logo
CMT Digital logo
Castle Island Ventures logo

CAT Labs develops technology to help government agencies automate and scale cryptocurrency investigations and is working on quantum-resistant cryptographic solutions.

Seed
$5.4M
12/09/2024
Article
Yellow Card logo
Yellow Card

Crypto platform • Stablecoin solutions

Blockchain Capital logo
Polychain Capital logo
Block logo
Winklevoss Capital logo

Yellow Card is a crypto platform that provides stablecoin solutions for treasury management and payments to business clients across Africa.

Series C
$33M
10/16/2024
Article
SatLayer logo
SatLayer

BTC re-staking • Babylon staking protocol

OKX Ventures logo
Mirana Ventures logo
Hack VC logo
Franklin Templeton Digital Assets logo

SatLayer has developed a BTC re-staking platform that allows users to earn rewards by securing Bitcoin Validated Services (BVS) and supporting decentralized applications and infrastructure.

Seed
$8M
08/26/2024
Article
Babylon logo
Babylon

Blockchain • Bitcoin Staking Protocol

Babylon is developing a Bitcoin Staking Protocol to transform bitcoins into a decentralized staking asset for the Proof-of-Stake economy, enhancing Bitcoin's scalability and security without the need for forks or third-party custody.

Equity
$18M
12/07/2023
Article
DUST Identity logo
DUST Identity

Product Authentication • Digital Records Linking

Kleiner Perkins logo
Castle Island Ventures logo
Amex Ventures logo
Airbus Ventures logo

DUST Identity provides a product authentication solution that secures the supply chain by linking physical items to digital records, serving industries ranging from high-security to luxury goods and art, and is now launching a mobile authentication platform and partnering with an esports organization.

Series B
$40M
12/05/2023
Article