-Adam Zeller has joined AKQA as head of social, overseeing strategy, content, and execution for clients including Levi Strauss & Co., NordicTrack, and iFit.-Gravity Global, a marketing consultancy, has appointed Renata Florio global chief creative officer. Florio was previously ecd of WPP for global brands at Ogilvy New York.-Design agency Pearlfisher has promoted its longtime creative Matt Sia to executive creative director. Sia’s appointment follows Jason Brown’s appointment as the design agency’s first global CEO earlier this year.-Score a Score, a leader in audio branding, is giving more companies access to…