- Brian Lesser
- Chief Executive Officer / WPP Media
Brian Lesser is the global CEO of WPP Media, WPP’s fully integrated, AI-powered media collective. In his first twelve months as CEO, he has unified the company behind a shared vision for the future and positioned WPP Media at the forefront of the industry’s transformation.
Recognized by Ad Age in 2025 as "a change agent amid generational advertising shifts," Lesser's entrepreneurial approach and passion for technology are driving a new era of media innovation at WPP and helping clients prepare for a future where media is everywhere and in everything.
Throughout his career, Lesser has pioneered the use of data-driven and technology-enabled marketing. Prior to WPP Media, he was CEO of the privacy-first data collaboration company InfoSum and was tapped by AT&T to build Xandr, overseeing the $1.6B acquisition of AppNexus and creating a premium advertising marketplace. Lesser previously served as CEO of GroupM North America and was the founding Global CEO of Xaxis, scaling programmatic advertising into a billion-dollar global business.
Brian holds a B.A. from the University of Pennsylvania and an MBA from Columbia Business School. He lives in New Jersey with his family.