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Andrew Thatcher

Founder

Co-Founder and Non-Executive Director at Flagstone

Jersey

FoundedFlagstone

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Ask Keegan Mitchell to introduce you to Andrew

You →Keegan · together at Flagstone (2024–2026) →Andrew

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You →Jamie · 5 people · together at Flagstone →Andrew

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You →Sam · 6 people · together at GLG Partners →Andrew

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About

He founded Flagstone in 2013 and served as its CEO until 2022, later becoming Chairman of Flagstone Group Limited and co-founding Flagstone International, where he was CEO from 2022 to 2025. His earlier career included an executive director role at Man, heading UK marketing as a principal at GLG Partners, and an executive director position at Citi.

Co-Founder and Non-Executive Director at Flagstone

Intro paths

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In turn, Andrew can intro founders to Flagstone's investors below.

Flagstone's investors · 7

EstanciaScottsdale · since 2024KindredSan Francisco · since 2024Kindred CapitalLondon · since 2017Kreos CapitalLondon · since 2024OMERS VenturesToronto · $5M – $25M checks · since 2020Venture FoundersLondon · since 2024Volution VenturesLondon · since 2024

Co-founders at Flagstone

SMSimon Merchant
Simon MerchantCo-Founder and Chairman

Experience

  1. Flagstone InternationalCo-Founder & Chairman, Flagstone Internationalcurrent2025 — present
  2. Flagstone InternationalCo-Founder & CEO2022 — 2025Jersey
  3. FlagstoneChairman, Flagstone Group Limitedcurrent2022 — present
  4. FlagstoneManaging Partnercurrent2014 — presentLondon
  5. FlagstoneCEO and Founder2013 — 2022London, United Kingdom
  6. ManExecutive Director2011 — 2012Hong Kong
  7. GLG PartnersPrincipal, Head of UK Marketing2006 — 2011London, United Kingdom
  8. CitiExecutive Director2001 — 2006London, United Kingdom
  9. Merrill LynchRelationship Manager1998 — 2001London

Skills & more

Hedge Funds14Asset Management22Management2Marketing3Alternative Investments8Investments12Equities5Portfolio Management10Private Equity2Financial Markets3Investment Banking4Trading2
+8 moreFixed IncomeEmerging MarketsDerivativesWealth ManagementCapital MarketsMergers & AcquisitionsVenture CapitalFinancial Modeling

From Andrew's professional profile.

Frequently asked questions

Who is Andrew Thatcher?
He founded Flagstone in 2013 and served as its CEO until 2022, later becoming Chairman of Flagstone Group Limited and co-founding Flagstone International, where he was CEO from 2022 to 2025. His earlier career included an executive director role at Man, heading UK marketing as a principal at GLG Partners, and an executive director position at Citi.
Where does Andrew Thatcher work?
Andrew Thatcher is Co-Founder and Non-Executive Director of Flagstone.
What companies did Andrew Thatcher found?
Andrew Thatcher founded Flagstone.

Shared employers