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Castle Island Ventures — Portfolio, Page 2

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

106
Companies
$1.3B
Total invested
$12.6M
Avg. check
52
Industries
Blockchain 16Cryptocurrency 10Web3 5FinTech 5Software 5Bitcoin 4+46 more
Founder contacts

Verified emails & LinkedIn for founders across this portfolio.

jane@on●●●●●●●.com
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Portfolio companies

Showing 25–48 of 106
CAT Labs
December 2024

CAT Labs is working on cybersecurity and digital asset recovery solutions.

Computer · Miami$5.4M Seed
Endstate
October 2024

Endstate offers shoes with digital features, enabling customers to avail of a physical product to wear and create a digital twin.

Fashion · West Roxbury$575K Seed
Delta
October 2024

Delta is a fully integrated solution designed from the ground up to eliminate the trade-off between sovereignty.

Blockchain · Zürich$11.0M Seed
SatLayer
August 2024

SatLayer is the economic layer for Bitcoin, making the best asset now fully programmable.

Bitcoin · Singapore$8.0M Pre-Seed
Kintsu
July 2024

Kintsu provides superior liquid staking solutions that boost your staking benefits and flexibility in DeFi ecosystems.

Blockchain · New York$4.0M Seed
Sendblocks
July 2024

SendBlocks, helpsyoucut the time to market from months to weeks and save up to 80% on development efforts.

Blockchain · Giv'atayim$8.2M Seed
Mountain Protocol
June 2024

We believe that everyone deserves access to the risk-free rate through a secure, regulated, and enterprise-grade product.

Blockchain · Pembroke$8.0M Series A
BabylonChain
May 2024

Babylon designs security protocols to leverage security for decentralized systems, allowing features like secure timestamps and staking.

Bitcoin · Palo Alto$70.0M Venture - Series Unknown
Station70
April 2024

Station70 provides scalable and resilient disaster recovery solutions.

Bitcoin · Nashville$5.0M Seed
Fordefi
February 2024

Fordefi is a company that specialises in financial technology and software.

Blockchain · New York$10.0M Seed
Manetu
January 2024

Manetu is a data security platform that allows sensitive data to be protected while still being used for legitimate purposes.

Consumer · Ridgewood$814K Seed
Dynamic Labs
December 2023

Dynamic is multi-chain wallet-based authentication and authorization platform.

Software · Palo Alto$13.5M Series A
DUST Identity
December 2023

DUST is a market-leading technology utilizing nanoengineered diamonds to create an unclonable identity layer on any object.

Cyber Security · Newton$40.0M Series B
Coin Metrics
October 2023

Coin Metrics is a provider of crypto financial intelligence providing network data, market data, index, and network risk solutions.

Analytics · Boston$6.7M Venture - Series Unknown
Groma
June 2023

Groma is launching GromaCoin, an on-chain asset backed by real estate.

Blockchain · Boston$1.0M Venture - Series Unknown
River
May 2023

River is a client-first Bitcoin company that focuses on security, innovative Bitcoin products, and exceptional service.

Bitcoin · Columbus$35.0M Series B
Capsule Social
September 2022

A decentralized social media network for unbiased and open discourse, resistant to takedowns and censorship.

Blockchain · Paris$102K Equity Crowdfunding
Halborn
July 2022

Halborn is a cybersecurity company protecting blockchain organizations from cyber attacks.

Blockchain · Miami$90.0M Series A
Mash
June 2022

Mash is a artificial intelligence company that provides knowledge Agents for Technical B2B Revenue and GTM teams.

Artificial Intelligence (AI) · Toronto$6.0M Seed
ZenLedger
May 2022

ZenLedger analyzes and simplifies cryptocurrency taxes to help investors and tax professionals in portfolio management.

Accounting · Bellevue$15.0M Series B
evaluate.xyz
May 2022

Trade NFTs on Flow. Search for trading partners, swap NFTs, and shop across marketplaces.

Analytics · Cambridge$4.0M Seed
EasyBins
May 2022

EasyBins is an online retail platform used to offer free grocery delivery.

Delivery Service · Springdale$2.4M Seed
SoundMint
April 2022

SoundMint is a Web3 & Music incubator.

Blockchain · Los Angeles$1.7M Seed
Ellis
April 2022

Ellis is a modern immigration law firm for startups and growing companies.

Consulting · New York$5.6M Seed

Where Castle Island Ventures invests

Blockchain16
Cryptocurrency10
Web35
FinTech5
Software5
Bitcoin4

About Castle Island Ventures's portfolio

How many companies has Castle Island Ventures invested in?▸

Castle Island Ventures has invested in 106 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does Castle Island Ventures invest in?▸

Castle Island Ventures's top investment sectors include Blockchain, Cryptocurrency, Web3, FinTech, Software. The firm invests across 52 different industry categories.

What is Castle Island Ventures's largest investment?▸

Among tracked funding rounds, Halborn received $90.0M in a Series A round. Castle Island Ventures's total known invested capital is $1.3B.

What is the average investment size for Castle Island Ventures?▸

Castle Island Ventures's average investment size is $12.6M across its portfolio of 106 companies.

What are Castle Island Ventures's most recent investments?▸

Recent Castle Island Ventures portfolio additions include CAT Labs, Endstate, Delta, SatLayer, Kintsu. These companies were founded in 2020 or later.

Reach the founders behind these 106 companies
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