MATT EPSTEIN — Third-person bio Matt Epstein has spent two decades inside the world's biggest membership machines. At Amazon, he helped launch Prime Day and scale Amazon Prime, Music, and Grocery. At SiriusXM, he built the streaming subscription business from the ground up. At Walmart, he led loyalty, retention, and member experience strategy for Walmart+. He is the author of Mastering Membership: The Guide to Loyalty, Retention, and Transformational Subscription Growth, a Partner at LF Partners, and the creator of the Growth Gap framework. He speaks about why companies with loyal customers still stall — and the operating systems that turn customers into members who stay. Contact: matt@membergrowth.com Web: https://closeyourgrowthgap.com