United Kingdom · 
Who invested in Flagstone?
Flagstone's investors include Kindred Capital, Omers Ventures, VentureFounders and Moneysupermarket Group.
20202021202220232024
$14MRound$138MGrowth$119MVenture
United Kingdom · Venture startup
Who invested in Flagstone
Funding summaryUpdated 26 Oct 2026
$271Mraised across 3 rounds since 2019, from 3 sources
$14MRound$138MGrowth$119MVenture
- Latest round
- Venture, $119MJun 2024
- Biggest round
- $138MGrowth · Mar 2024
- Investors
- 4
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Round, $14M May 2019
- Biggest round
- $138M Growth · Mar 2024
- Usual gap between rounds
- 4.8 years the median of 2
The rounds
- Jun 2024Venture$119M2 returning
Source recordedSEC filing: $118M sold, first sale Jun 2024
- Mar 2024Growth$138M1 new1 returning
Source recordedSEC filing: $118M sold, first sale Jun 2024
- May 2019
Founders and team
From Flagstone's own website: 2 founders, 7 on the team.
Andrew ThatcherCo-Founder and Non-Executive Director
Simon MerchantCo-Founder and Chairman
- Arman TahmassebiChief Executive Officer
- Darren BentleyChief Growth Officer
- Francesco FulcoliChief Compliance and Risk Officer
- John MartinChief Product Officer
- Lakhbir SandhuChief Financial Officer
- Lee ProvoostChief Technology Officer
- Susanna BrownChief People Officer
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Moneysupermarket Groupno record of our own yet1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Flagstone
How much has Flagstone raised?
Flagstone has raised $271M across 3 rounds since 2019.
When did Flagstone last raise?
Flagstone's most recent round was a Venture of $119M in Jun 2024.
What was Flagstone's biggest round?
Flagstone's largest round on record is $138M (Growth), in Mar 2024.
Who backed Flagstone first?
Flagstone's first round on record, in May 2019, was backed by Kindred Capital, VentureFounders and Moneysupermarket Group.
What stage is Flagstone at?
Flagstone's latest named round is a Venture, in Jun 2024.
Where is Flagstone based?
Flagstone is based in the United Kingdom.
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