Arman Tahmassebi has taken on a new role as Chief Executive Officer at Flagstone. He announced the move in a post on LinkedIn today (Monday), saying he was “starting a new position as Chief Executive Officer at Flagstone.”

The appointment follows more than two decades in senior roles across trading, brokerage, and fintech firms in the UK.

Leadership Role at Flagstone After Brokerage Careers

Before joining Flagstone, Tahmassebi worked at LendInvest for just over five years. He served as Chief Operating Officer during that period and was based in London. His role focused on operational oversight at the non-bank property lender.

Prior to LendInvest, he spent nearly three years at ETX Capital, later rebranded as OvalX. He first joined as Chief Operating Officer for almost two years and was then appointed Chief Executive Officer, a role he held for just over one year.

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He also worked at London Capital Group for just over one year as Chief Operating Officer, continuing his focus on operational leadership within regulated brokerage businesses.

Flagstone operates a UK-based savings platform. It allows customers to manage cash through a single application and spread deposits across multiple accounts. Its services are available to individuals, businesses, and charities.

Leadership Experience Includes IG, Extrabet Roles

Tahmassebi previously spent close to 15 years at IG Group. His later roles included nearly three years as Global Head of Operations, where he oversaw global operations teams and sat on senior management and risk committees.

Before that, he served for just over two years as Managing Director for Europe and South Africa, with responsibility for sales, marketing , and operations across multiple regional offices. Earlier in his career, he held the position of Chief Executive Officer at Extrabet for about one and a half years.

Former ETX Capital Offered Transfers Capital.com

OvalX, formerly ETX Capital, closed in March 2023. The company informed clients by email and offered clients the option to transfer accounts, positions, and funds to Capital.com.

OvalX, operated by Monecor Limited in the UK and Oval Money Ltd in Europe, offered forex and CFD trading for retail and professional clients. The firm reported losses in 2021 and laid off staff the previous month. The closure followed its 2022 rebrand under private equity ownership.