Sybil Grieb is a digital marketing strategist with over 15 years of experience representing clients from Starbucks, Samsung and Activision, to fast moving startups and new brands. She is the founder and CEO of 100Hats.co which focuses on brand strategy, social media, and influencer marketing. Prior to founding her own company, she was the U.S. Head of Influencer Marketing at Edelman, the largest privately owned PR company in the world.