Sima Sistani
WeightWatchers
Sima Sistani has more than 20 years of experience at the intersection of growth tech and community. She has started, operated, and scaled companies from seed startups to multinational corporations. She currently serves as the CEO of WeightWatchers. Prior to her joining WW in March 2022, Sima was the Co-Founder and Chief Executive Officer of Houseparty, a face-to-face, synchronous social network with a mission to bring empathy to online communication and fulfill the initial promise of social media. Houseparty, which grew to over 100M users under her leadership, challenged the incumbent social media giant