Sean McKenzie

Sean joined TSMGI as Chief Financial Officer in 2024, bringing extensive leadership experience in finance, business strategy and operational execution. With a background encompassing global corporations and management consulting, Sean plays a critical role in driving TSMGI’s financial health, operational efficiency and long-term growth.

Sean’s thoughtful approach to his work is rooted in holistic business leadership—connecting the dots between strategy, people and data to help guide informed decisions and sustainable success. He blends strategic thinking with hands-on execution, guiding agency-wide initiatives that align financial strategy with organizational growth and performance. To Sean, every decision is an opportunity to build a foundation for the future—for both the business and the people within it.

Prior to joining TSMGI, Sean spent more than 20 years at Abbott, most recently as Divisional Vice President of Strategic Operations within Global Marketing and External Affairs. In that role, he led global planning, financial oversight, campaign and agency operations, and managed Abbott’s in-house creative agency. His experience at Abbott also included leading Commercial Operations across Latin America and Canada in the Diagnostics Division, as well as building and running strategy and marketing organizations.

Sean’s career began in institutional finance, including hedge fund trading and operations—experience that helped shape his broad financial expertise. He later moved into management consulting at A.T. Kearney, where he served as Senior Engagement Manager and advised Fortune 500 clients such as General Motors, Coca-Cola, Sara Lee, Bank One, ABN AMRO and AON.

Sean holds an MBA in Marketing and Strategic Management from the University of Minnesota’s Carlson School of Management and a Bachelor of Science in Finance and Economics from the University of Colorado’s Leeds School of Business. He also completed executive programs at INSEAD in both Singapore and Fontainebleau, France.

Having spent a significant part of his life in Colorado, Sean now lives in Highland Park, IL, where he and his wife raised their three children. A lifelong learner and global citizen, Sean has studied and worked across continents and brings that expansive perspective into both his professional and personal life. An advocate for wellness and personal growth, he is an Abbott World Marathon Majors Six-Star Finisher—the first Abbott employee to complete the circuit following the company’s sponsorship. He enjoys working out, scuba diving, cycling and working in the yard.