How Substack Turned Email Newsletters Into a Media Revolution
Startup Stories with Fexingo: Conversations About Founders, Funding, and Building Companies from Zero · 2026-06-12 · 10 min
Episode notes
In this episode, Lucas and Luna dive into the story of Substack, the platform that turned email newsletters into a viable media business. They trace its origins from a simple insight—writers want independence—to a company that now processes over $100 million annually in subscription payments. The conversation examines how Substack solved the discovery problem for individual writers, built a creator-friendly business model with a 10 percent take rate, and sparked a broader movement that forced larger media companies to rethink their own strategies. Along the way, they discuss the role of investor backing (Andreessen Horowitz led a $15.3 million Series A in 2019), the network effects of aggregated subscriptions, and the tension between editorial freedom and platform responsibility. Specific examples include the success of Heather Cox Richardson's 'Letters from an American' and the platform's expansion into podcasts and video. The hosts also touch on the challenges of moderation and the sustainability of a model that relies entirely on individual creator output.