WindBorne Systems

WindBorne Systems is building a planetary nervous system for Earth's atmosphere. The Redwood City company operates a constellation of autonomous long-duration balloons that gather high-resolution atmospheric data from remote and ocean regions previously invisible to weather models - then feeds that data into WeatherMesh, its in-house AI forecasting model that has surpassed Google DeepMind's GraphCast as the world's most accurate medium-range global weather forecast. With backing from Khosla Ventures, the Gates Foundation, and U.S. military contracts, WindBorne is making a credible run at replacing century-old weather infrastructure.