Mark Fitzloff is a globally recognized advertising creative director and agency founder.

Mark spent twenty years at Wieden+Kennedy starting as a copywriter doing award-winning work for Nike. While working on Coca-Cola he found his true talent: breathing fresh life into iconic American brands and reminding us what we love about them. He extended that skill to Levis, Chrysler and Old Spice, creating a campaign that has gone on to be one of the funniest and most enduring in advertising.

In 2008, Mark was named executive creative director of Wieden’s global headquarters office, becoming the youngest partner in the firm soon after. Under Mark’s leadership, the Portland office earned its reputation as the world’s most creative ad agency, becoming the first independent to be named Cannes Agency of the Year. Along the way Mark served as Cannes titanium jury president and was consistently named one of the most creative people in advertising and the most awarded creative director in the world.

In 2013, Mark took charge as global CCO of Wieden+Kennedy, responsible for all creative work around the globe. In his final year at the helm, Mark led the agency to once again being named Creativity’s agency of the year, while ensuring it had its best financial year on record.

In 2017 Mark left WK to start his own agency, Opinionated. As CEO, Mark led Opinionated through nine consecutive years of growth, creating successful campaigns for adidas, Dick’s Sporting Goods and Panda Express. Under his leadership, Opinionated was recognized as one of AdAge’s Small Agencies of the Year eight times, and was named to the prestigious AdAge A-List in 2025. Mark then sold Opinionated in 2026, capping his first successful run at entrepreneurship.