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Matt Walsh

Investor

Founding Partner at Castle Island Ventures · Board director at Coin Metrics · Board director at Attestiv

Boston, Massachusetts

Writes $100K – $5M checks · typically $1.5M

Find your path to Matt

455 people in our graph share verified history with Matt — schools, employers, funds. One of them is your warm intro.

Eghosa OmoiguiunlockedMatt: together at Babson College (2003–2005)
×3Matt: together at Babson College
×4Matt: together at Fidelity Investments
Matt: together at Arthur D. Little, Inc.

About

Matthew Walsh, ex‑Fidelity financial-services leader who led internal blockchain initiatives preceding Fidelity Digital Assets, focuses on seed-stage public-blockchain equity and prioritizes market structure and regulatory clarity over token-centric trading.

Contact· self-published, not guessed

Likely email· guessed from name + firm domain, not firm-published

Invests in

Crypto & Web3CybersecurityData & InfrastructureDeveloper ToolsFintech

Board director at Coin Metrics

Intro paths

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In turn, Matt can intro founders to Coin Metrics's investors below.

Coin Metrics's investors · 10

Acrew CapitalSan Francisco · $1M – $15M checks · since 2021Castle Island VenturesBoston · $100K – $5M checks · since 2023Coinbase VenturesStamford · $100K – $10M checksCollab+CurrencyEugeneCommunitas Capital PartnersNew YorkDigital Currency GroupNew YorkDragonflyNew York City · $3M – $30M checksF-Prime CapitalCambridge · $3M – $10M checksHighland Capital PartnersCambridge · $1M – $10M checks · since 2019MetastableNew York City · $3M – $30M checks

Co-founders at Coin Metrics

TRTim Rice
Tim RiceFounder

Board director at Attestiv

Intro paths

→

In turn, Matt can intro founders to Attestiv's investors below.

Attestiv's investors · 4

Blockchain CoinvestorsSan FranciscoBorderless VentureClermontCastle Island VenturesBoston · $100K – $5M checksPlug and Play VenturesSunnyvale · $50K – $12M checks

Co-founders at Attestiv

NVNicos Vekiarides
Nicos VekiaridesExecutive Officer, Director
JB
John BatesExecutive Officer, Director

Experience

  1. Castle Island VenturesFounding Partnercurrent2018 — present
  2. Fidelity InvestmentsVice President2014 — 2018Boston, MA
  3. Clear Channel Media and EntertainmentManager, National Programming Platforms2010 — 2012New York, NY
  4. Loughlin Meghji + CompanyAnalyst2009 — 2010New York, NY
  5. Arthur D. Little, Inc.Senior Business Analyst2007 — 2009New York, NY

Skills & more

Languages French

From Matt's professional profile.

Colleagues at Castle Island Ventures

Andrew Brochu
Controller at Castle Island Ventures
Gretchen McCarey
Chief Financial Officer at Castle Island Ventures
Gus Coldebella
Chief Legal Officer at Castle Island Ventures
Henry Harris
Investor at Castle Island Ventures
Hunter Merghart
Venture Partner at Castle Island Ventures
Jeff Nazzaro
Advisor and Co-founder at Collective Liquidity
Laura Lentz
Executive Assistant at Castle Island Ventures
Nic Carter
Investor in anti-authoritarian technology; general partner at Castle Island Ventures

Frequently asked questions

Who is Matt Walsh?
Matthew Walsh, ex‑Fidelity financial-services leader who led internal blockchain initiatives preceding Fidelity Digital Assets, focuses on seed-stage public-blockchain equity and prioritizes market structure and regulatory clarity over token-centric trading.
Where does Matt Walsh work?
Matt Walsh is Founding Partner at Castle Island Ventures and Board director at Coin Metrics and Board director at Attestiv.
What does Matt Walsh invest in?
Matt Walsh invests in Crypto & Web3, Cybersecurity, Data & Infrastructure, Developer Tools, Fintech.
What check size does Matt Walsh write?
Matt Walsh typically writes checks of $100K – $5M.
Where did Matt Walsh go to school?
Matt Walsh studied at Duke University - The Fuqua School of Business (Master of Business Administration (MBA)); Babson College (2007, BS: Business Administration); Boston College High School (High School).

Same school

Shared employers