AJ Castaldi

Bio:

AJ Castaldi, Director, Media Investment at Deerfield Group, has helped brands strengthen media investment strategy and cultivate meaningful partnerships across the portfolio since joining in 2024. Previously, he spent nearly three years at Publicis Groupe, building expertise in investment strategy and partnerships. AJ is passionate about fostering trusted, transparent relationships among clients, agencies, and media partners, and bringing that collaborative mindset to the way media investment decisions are made.