Harry Sumner Joins OMD as Executive Director of Performance Experimentation

Harry Sumner has joined OMD as Executive Director of Performance Experimentation, taking on a newly announced leadership role focused on advancing data-driven marketing innovation and performance optimization.

Sharing the news, Harry expressed his excitement about beginning the next chapter of his career with OMD and contributing to the agency's continued focus on experimentation, measurement, and growth.

The appointment comes at a time when experimentation has become a critical capability for modern marketing organizations. As brands navigate evolving consumer behavior, changing digital ecosystems, and increasing pressure to demonstrate measurable results, testing and optimization have become essential components of marketing strategy.

Performance experimentation enables organizations to make informed decisions by validating assumptions, identifying growth opportunities, and continuously improving campaign effectiveness through data and insights.

Harry's role reflects the broader industry shift toward evidence-based marketing, where organizations increasingly rely on experimentation frameworks to guide investment decisions and improve customer outcomes across digital channels.

His appointment also highlights OMD's continued investment in innovation and performance-focused capabilities as brands seek greater accountability, efficiency, and effectiveness from their marketing efforts.

 

About OMD:

OMD is a global media agency network that helps brands drive growth through media strategy, planning, performance marketing, data analytics, and integrated communications solutions.