Insights

Strategic Partnerships Flagstone’s ongoing and growing partnerships with financial institutions such as Bank ABC and collaborations with Cebr and Intelliflo indicate a fertile landscape for cross-sell of treasury, analytics, and adviser tools. Target banks and fintechs seeking competitive deposit solutions and enhanced savings product distributions could be prime sales targets.

Institutional Growth With 75,000+ clients and £19bn in cash on the platform, Flagstone demonstrates strong client traction and liquidity management capabilities. This signals opportunity to upsell advanced cash management, diversified product access (Instant Access, Fixed Term, ISA), and enterprise-grade savings solutions to mid-market and large SME segments.

Leadership Change Recent leadership transition to Arman Tahmassebi as CEO may open appetite for refreshed technology, product enhancements, and strategic partnerships. Propose executive-level engagements to align on roadmap, security, scalability, and joint go-to-market initiatives.

Technology Enablement Flagstone already leverages a modern tech stack (AWS, DBT, advanced ad platforms, collaboration and security tools). There is an opportunity to offer integration pipelines, data analytics partnerships, or FinTech modernization services to improve onboarding, compliance reporting, and operational efficiency for institutional users.

Regulatory & Competitive Positioning Launch of cash Isa and competitive fixed-term savings in collaboration with partners positions Flagstone as a direct competitor to traditional platforms. Sales opportunities exist to position co-branded savings programs, liquidity management services, and advisory integrations to capture savings market share among savers and businesses migrating from incumbents.

Similar companies to Flagstone

Flagstone Tech Stack

Flagstone uses 8 technology products and services including LinkedIn Ads, The Trade Desk, Adobe Creative Cloud, and more. Explore Flagstone's tech stack below.

Media & News

Flagstone's Email Address Formats

Flagstone uses at least 4 email formats:
Flagstone Email FormatsExamplePercentage
First.Last@flagstoneim.comJohn.Doe@flagstoneim.com
94%
LastFirst@flagstoneim.comDoeJohn@flagstoneim.com
3%
First.Middle@flagstoneim.comJohn.Michael@flagstoneim.com
2%
Last@flagstoneim.comDoe@flagstoneim.com
1%

Frequently Asked Questions

What is Flagstone's phone number?

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You can contact Flagstone's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Flagstone's stock symbol?

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Flagstone is a publicly traded company; the company's stock symbol is FSR2.

What is Flagstone's official website and social media links?

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Flagstone's official website is flagstoneim.com and has social profiles on LinkedIn.

How much revenue does Flagstone generate?

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As of August 2026, Flagstone's annual revenue is estimated to be $50M - $100M.

What is Flagstone's SIC code and NAICS code?

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Flagstone's SIC code is 7299 - Miscellaneous Personal Services, Not Elsewhere Classified and NAICS code is 52 - Finance and Insurance.

How many employees does Flagstone have currently?

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As of August 2026, Flagstone has approximately 391 employees across 4 continents, including Europe, North America and Asia. Key team members include Chief Executive Officer: A. T., Chief Executive Officer: V. K. and Cto: L. P. Explore Flagstone's employee directory with LeadIQ.

What industry does Flagstone belong to?

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Flagstone operates in the Financial Services industry.

What technology does Flagstone use?

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Flagstone's tech stack includes LinkedIn Ads, The Trade Desk, Adobe Creative Cloud, Amazon Web Services, Microsoft SharePoint, DBT, Paylocity and Microsoft Teams.

What is Flagstone's email format?

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Flagstone's email format typically follows the pattern of First.Last@flagstoneim.com. Find more Flagstone email formats with LeadIQ.

How much funding has Flagstone raised to date?

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As of August 2026, Flagstone has raised $286M in funding. The last funding round occurred on Jun 21, 2024.

When was Flagstone founded?

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Flagstone was founded in 2013.
Flagstone logo

Flagstone

Financial ServicesEngland, United Kingdom201-500 Employees

Flagstone is a UK financial services company that operates a savings platform enabling users to consolidate, manage, protect, and grow cash in one place. The platform provides access to 65+ banks through a single sign-on and supports moving funds between accounts and diversification across Instant Access, Fixed Term, and ISA products. Headquartered in London, England, Flagstone employs between 201 and 500 people. It serves over 75,000 clients and holds about £19 billion of cash on the platform. The company has pursued partnerships with organizations such as Chetwood Bank, Intelliflo, The Law Society, and Alloy, and has expanded its product offerings to include a cash ISA; in January 2026 it announced a leadership change with Arman Tahmassebi named chief executive as co-founder Simon Merchant steps down for health reasons.

Section iconCompany Overview

Phone number
SIC Code
7299 - Miscellaneous Personal Services, Not Elsewhere Classified
Stock Symbol
FSR2
NAICS Code
52 - Finance and Insurance
Founded
2013
Employees
201-500

Section iconFunding & Financials

  • $286M

    Flagstone has raised a total of $286M of funding over 5 rounds. Their latest funding round was raised on Jun 21, 2024 as a Venture Round.

  • $50M - $100M

    Flagstone's revenue is estimated to be in the range of $50M - $100M

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