Portfolio map · VC firm · United States
Castle Island Ventures portfolio map
46 startups Castle Island Ventures has backed in rounds we track, since 2019, grouped by their main sector. Together they have raised $1.9B; Castle Island Ventures led at least one round in 1 of them. The biggest sector is Web3 & Crypto, with 27 companies.
Funding by segment
- Web3 & Crypto$466M27
- Fintech$1.2B9
- IT Services$62M4
- Big Data & Analytics$42M3
- AI$52M3
Where they are based
- United States37$1.3B
- Cayman Islands1$14M
- Switzerland1$11M
- Singapore1$8.0M
- India1$4.0M
- France1$102K
- Brazil1$388M
- Nigeria1$73M
- United Kingdom1$50M
- Canada1$8.0M
United States
Cayman Islands
Switzerland
Singapore
India
France
Brazil
Nigeria
United Kingdom
CanadaFounded
10 without a founding year on record.
Total raised
- Under $1M1
- $1M to $10M22
- $10M to $50M15
- $50M to $250M6
- $250M to $1B2
- $1B and over0
Each dot is a startup: the year it was founded across, the total it has raised up (each line is ten times the one below). Pick a segment to pick it out.
36 of 46 startups shown; the rest have no founding year or amount on record.
- 1 to 2
- 3 to 7
- 8 to 24
- 25 to 99
- 100 and more
- United States37
- Cayman Islands1
- Switzerland1
- Singapore1
- India1
- France1
- Brazil1
- Nigeria1
- United Kingdom1
- Canada1
Startups by country, 10 countries in all.
Segment by segment
Web3 & Crypto
27 startups · $466M raised
- TTallyUnited States$163M
BabylonChainBabylon designs security protocols to leverage security for decentralized systems, allowing features like secure timestamps and staking.United States$75M
RiverRiver is an electric vehicle startup building multi-utility scooters.United States$47M
XFXXFX is a fintech company focused on enhancing foreign exchange (FX) and international settlement infrastructure.United States$26M
ZenLedgerZenLedger is a cryptocurrency tax and accounting software platform founded in 2017.United States$17M
Flipside CryptoAI tools fail on expert work because they're missing context.United States$14M
Build on BitcoinBuild on Bitcoin is a hybrid Layer-2 network Bitcoin blockchainCayman Islands$14M
NotabeneNotabene is a New York-based FinTech and RegTech company founded in 2020.United States$12M
Fintech
9 startups · $1.2B raised
- SStablecoinXUnited States$530M
- FFlixBrazil$388M
- FPFélix PagoUnited States$75M
- BBitwiseUnited States$74M
Yellow CardYellow Card is the largest and only licensed Stablecoin on/off ramp on the African continent.Nigeria$73M- HRHidden RoadHidden Road is the global credit network for institutional investors and provides easy access to both traditional and digital markets.United Kingdom$50M
ValinorValinor Enterprises Inc.United States$25M
SurusSurus is an asset management, custody, and compliance platform designed for institutional clients.United States$11M
IT Services
4 startups · $62M raised
Cyclops.ioCyclops is a collaborative environment that brings the experience of a physical conference room to distributed teams who are working online.United States$28M
Project ElevenProject Eleven is dedicated to building resilient infrastructure and tools to secure digital assets for the post-quantum era.United States$20M
Alpen LabsAlpen Labs is a Delaware-registered company dedicated to developing Bitcoin-native financial markets and infrastructure.United States$8.5M
CAT LabsCAT Labs is a Miami-based, woman-owned cybersecurity and crypto-forensics company founded in 2022 by former U.S.United States$5.4M
Big Data & Analytics
3 startups · $42M raised
AtriumAtrium is a leading AI-native consultancy based in Bozeman, Montana, specializing in the Snowflake and Salesforce ecosystems.United States$24M
dawnDawn is an AI workforce platform designed specifically for manufacturing and product-driven organizations.United States$14M
evaluate.xyzevaluate.market, Inc., operating as evaluate.xyz, specializes in online services related to digital assets and blockchain technology.United States$4.0M
AI
3 startups · $52M raised
CasaCasa is a facility management company that provides commercial cleaning services.United States$42M
MashOne-stop platform to build your community and monetize creativityCanada$8.0M
AttestivAttestiv is an AI software platform that verifies the authenticity of digital media and data for businesses.United States$2.0M
How this map is made. Every startup here has raised money in a round we track that names Castle Island Ventures as an investor, the first in 2019. Each sits under its main sector, read from its rounds, and each shows its best-funded first. Rebuilt nightly; updated 15 November 2026.
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