About Callum

Callum leads a team of accomplished Economists whose role is pivotal in maintaining CMSPI’s cutting-edge position in the payments landscape. The Insights team, under Callum’s guidance, spearheads CMSPI’s merchant advocacy and provides strategic consulting services on a global scale. He is an active participant in industry events, frequently sharing his expertise, and regularly contributes thought leadership pieces to both internal and external publications.

Callum is recognized as a subject matter expert in various domains, including payments regulation and litigation, the future of payments, payments competition, and card co-badging/routing.