Both Prestes and Fowles will report to Richard Hill, the head of strategy at Atomic, and have been tasked with providing clients with deeper insight as the agency develops traditional ad campaigns and its programmatic offering, Atomic Live.
Prestes joins from Africa Propaganda, the Sao Paulo-based creative shop, where as a planning director he led the strategy and creative development for clients including Adidas and Budweiser, including campaigns during the 2014 World Cup. He was promoted to group strategy director in September 2014.
Before joining Africa Propaganda in 2012, Prestes was a strategic planner for 180 Amsterdam for two-and-a-half years.
Fowles, who had a stint at 18 Feet & Rising on a freelance basis last year, has previously freelanced as a planning director at Now, and was a strategy director at M&C Saatchi, WCRS, The Red Brick Road, and DDB. While at WCRS, between 2009 and 2011, Fowles led the brand and creative strategy for the UK launch of Santander.
Prior to working at creative agencies, Fowles was head of insight at The Guardian, where he worked for 10 years until 2005.
Hill said: "We had a great 2015, winning a number of new clients and retaining all our others – plus the launch of our programmatic division Atomic Live and hiring the likes of Howard Willmott and Louise Weston.
"Daniel and Graham will play instrumental roles as we move forward in developing ever more innovative and creative platforms for our clients’ brands."