The appointments come as Overchain scales its platform and international footprint to meet growing demand from businesses moving money globally using stablecoins, with conversion to or from fiat for settlement through existing banking infrastructure.
Overchain brings stablecoin settlement, treasury orchestration, OTC execution and compliance tooling into a single operational layer, supporting businesses across financial services, luxury markets and digital platforms.
Growth drives investment in senior team
Overchain’s average monthly processing volume is more than $385 million, with total payment volume growing by an average of 38% quarter on quarter since its launch in late 2025. Stablecoins now account for 86% of transaction volume across the platform, reflecting growing adoption among businesses looking for faster and more flexible ways to move money internationally.
The three appointments strengthen Overchain’s technology, regulatory and commercial capabilities as the business continues to scale.
Mansi Birla, Head of Licensing: Mansi joins Overchain from Gemini, where she led licensing strategy and international expansion across the US, EU and offshore financial centres for both retail and institutional business lines. She also led the regulatory workstream for Gemini’s CFTC Designated Contract Market licence. At Overchain, Mansi will lead the expansion of the company’s multi-jurisdictional licensing footprint to support growing international client demand.
John Grimsey, CTO: John specialises in designing, building and scaling core trading and financial infrastructure, with particular expertise in post-trade settlement. In his previous role at BCB Group, his architectural work supported a 100% increase in daily trade settlement volume ahead of the implementation of full Straight-Through Processing (STP). At Overchain, John will lead the continued development and scaling of the platform’s technology infrastructure, including resilience, capacity and the company’s AI strategy.
David Benton, Head of Enterprise Sales: David brings extensive enterprise technology and fintech experience to Overchain. His previous employers include IBM and Accenture, where he worked with global enterprises and took IBM’s blockchain platform to market. He has also held roles at Currencycloud, which was acquired by Visa, and Cashflows. At Overchain, David is leading enterprise sales and strategic client relationships as the business expands adoption of its money movement infrastructure among international businesses.
Sam Shields, CEO at Overchain, said: “Stablecoins are becoming an increasingly important part of how businesses move money globally. We’ve built Overchain to make that infrastructure commercially usable at scale, bringing money movement, compliance and operational control together without adding complexity.
“The growth we’ve seen over the past 12 months shows real-world demand. Mansi, John and David bring deep experience across regulation, financial infrastructure and enterprise technology, strengthening the team as we scale the platform, expand internationally and support more businesses moving money globally.”
