WindBorne Raises $37M Series B for AI Weather Forecasting
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WindBorne Systems has raised an oversubscribed $37 million Series B co-led by Khosla Ventures and Galvanize, with TransLink Capital, Lux Capital and existing investors participating. Total funding now exceeds $62 million.
The company pairs hardware with models. It flies autonomous long duration sensing balloons, more than 600 of them aloft at any given time, and feeds the readings into its own AI forecasting system. The bet is that better observations, not just better models, are what improve a forecast.
Both sides of the business tripled over the past year. The global balloon network tripled in size and revenue tripled alongside it.
WindBorne recently released WeatherMesh-6, which the company says ranks as the most accurate weather forecasting model in the world on publicly available benchmarks.
Based in Redwood City, California, the company will use the money to expand the balloon constellation, secure more compute, and build the next generation of WeatherMesh models and weather intelligence products.