Bagwell, who will report to the AKQA vice-president, Guy Wieynk, joins from the consultancy EMC2, where he was the chief strategy director. Bagwell also previously worked at Conchango as its head of experience.
He currently sits on the Digital Advisory Board of Greenwich Council, which has an incubator hub for new businesses.
He is also the founder of The Fantastic Tavern, a community of brand and agency digital planners and creatives who share insights, expertise and experience.
Wieynk said: "AKQA has a consistent track record of delivering effective strategic services. We are looking forward to Matt's consulting industry experience and leadership to impact our client's businesses."
Bagwell said: "I have always admired AKQA's unique ability to combine strategy, creative and technology to drive success for clients. I'm excited about working with our team to create market-leading work."Follow @SaraKimberley