weather-forecasting
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Spire sold the ships. It kept the sky.
A $241 million maritime deal left Spire with its satellites and a sharper question: how much is a view of Earth worth? Its answer runs from weather forecasts to wildfire sensors and the radio signals aircraft leave behind.
ClimateAi
ClimateAi is a San Francisco-based climate-tech company that builds an AI-powered climate resilience platform. Founded at Stanford in 2017 by Himanshu Gupta and Max Evans, its ClimateLens platform combines patented machine-learning models with physics-based climate and weather data to forecast risk from weeks to decades ahead. Food, agriculture, and water-dependent companies - including Dole, Suntory, Oatly and McCain - use it to protect sourcing, planting, and procurement decisions against a more volatile climate.
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.