Castle Island Ventures
castleisland.vc
Venture Capital
As featured in
Claim pageClaim
Follow
Overview
News
Salaries
Products
People
Growth
Offices
Financials
Investor profile
Venture capitalInvestments
22
16 of them startups
Hiring now
13
396 open roles
Rounds in 12 months
4
$144M raised
Exits
2
Focusshare of its companies
Stablecoins 27%Cryptocurrencies 27%Financial Software & Embedded Finance 18%Blockchain Infrastructure 14%Crypto Exchanges 9%Custody & Fund Administration 5%Digital Banks & Neobanks 5%Currency Exchange & FX Payments 5%
Where its companies are
United States 64%Mexico 5%
Stage of its companies
Venture, series not stated 55%Series C and later 18%Series B 9%Pre-seed & seed 9%Series A 9%
Its companies, the freshest money firstAll 22 investments
TRM LabsSeries C · 1 mo ago · 108 roles
Félix PagoSeries C $87M · 1 mo ago · 78 roles
Yellow CardVenture round $40M · 2 mo ago · 8 roles
XFXVenture round $17M · 6 mo ago
Arch LendingVenture round $75M · 2 yr ago · 1 role
Bitwise Asset ManagementVenture round $70M · 2 yr ago · 2 roles
Station70Seed $5M · 2 yr ago
AttestivVenture round $1.2M · 3 yr ago
TalosSeries A $40M · 5 yr ago · 15 roles
AndrenaVenture round $2.6M · 7 yr ago
RippleSeries B $55M · 10 yr ago · 92 roles
Juniper Square48 roles
Hiring fastestroles opened in 30 days
Co-investorscompanies they hold together
Y Combinator 
VCSheet 
Andreessen Horowitz 
Initialized Capital 
a16z crypto 
Hack VC 
F-Prime Capital 
Greycroft 
Winklevoss Capital 
General Catalyst Similar investorstheir companies share markets and countries
Haun Ventures
1confirmation
ParaFi Capital
Variant
Borderless Management LLCSources: its portfolio page, read Oct 3
Overview
Castle Island Ventures is a venture capital firm investing in public blockchain startups. Explore our mission and portfolio.
News
Weekly Roundup 09/18/26 (Clarity fails to advance, Caroline Ellison's new job, AI leaking MNPI, Poland's oil snafu) (EP.740)
Matt and Nic are back for another week of news and deals. In this episode: How is SBF like Dario? The EAs are at it again Do we need new regulation to Pace the Frontier? Can Anthropic be regulated like a bank? Are baseball cards back? Clarity fails at the
Read more
Report
Castle Island Ventures Chooses Fireblocks Trust for Digital
Castle Island Ventures selects Fireblocks Trust for digital asset custody. This move enhances regulatory compliance in crypto management.
Read more
Report
Weekly Roundup 09/11/26 (Liquid hack, AI x-risk, Silvergate revisited, can AI leak MNPI?) (EP.739)
Matt and Nic are back for more deals and news. In this episode: We bring back his the theme music Anthropic employees think there's a 10% chance AI destroys humanity Was Jacob Coxon astroturfed or real? Are Anthropic employees being sincere or cynical? Bl
Read more
Report
Weekly Roundup 09/04/26 (HuggingFace hack breaks containment, Hyperliquid onshoring, RSA260 factored, is the stablecoin sandwich cheaper?) (EP.738)
Matt and Nic are back for another week of news and deals. In this episode: We determine the winner of the bad boys theme song competition Dwarkesh ignites controversy with his OpenAI hack recap What actually happened with OpenAI and Huggingface? Gwern's a
Read more
Report
Guy Young (Ethena) on Digital Financial Markets (EP.737)
Wyatt sits down with Guy Young, founder of Ethena, for Guy's third appearance on the pod. In this episode: What has driven Ethena's success and durability? Where is there demand for other yield assets? Where is capital coming from? Is full onchain portfol
Read more
Report
Weekly Roundup 08/28/26 (BankChain alliance, Goat grazing hedges, SHRINCS, is maximalism over?) (EP.736)
Matt and Nic return for another week of deals and news. In this episode: Matt and Nic consider candidates for the new bad boys intro music 39 state banking associations form the BankChain alliance Blockstream researchers proposed SHRINCS, a PQ signature s
Read more
Report
Weekly Roundup 08/21/26 (SALT Wyoming, SEC's Reg Crypto, Tether's big 4 audit, Crypto Privateers) (EP.735)
Matt and Nic return for another week of news and deals. In this episode: The boys review SALT Wyoming in Jackson Hole Why did Stripe buy Openrouter? Stripe says we have entered the Singularity People are upset about data centers The SEC proposes Reg Crypt
Read more
Report
Weekly Roundup 08/14/26 (Anti-Datacenter sentiment, dinosaur fossil investing, SEC is DIYing Clarity) (EP.734)
Matt and Nic are back for another week of news and deals. In this episode: Who is the main character in AI? Why are people so mad about datacenters? Sherrod Brown is back and he's running against AI Are datacenters being built with Flock? Culturally scarc
Read more
Report
Weekly Roundup 08/07/26 (Coldcard hack continues, Ethereum mulls an issuance tweak, ai16z winds down, Clarity deadline looms) (EP.733)
Matt and Nic are back with more news and deals. In this episode: Why the Coldcard hack is worse than some major exchange and DeFi hacks What the Coldcard hack told us about the need for open weight models Is self custody over? MSTR sells more Bitcoin An F
Read more
Report
Weekly Roundup 07/31/26 (Situational Awareness collapse, Coldcard exploit, latest on CLARITY, Visions of Bitcoin 8 years on) (EP.732)
Matt and Nic are back for another week of news and deals. In this episode: What the novel Hyperion tells us about AI doom Situational Awareness liquidates most of its public book after a sharp AI selloff Will Leo have a second act? Why has AI been selling
Read more
Report
Show more news