WindBorne Systems
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Investors
Founders
About
WindBorne Systems is a Redwood Shores, California-based weather-intelligence company that operates Atlas, a global constellation of long-duration smart balloons paired with WeatherMesh, an AI weather-forecasting model 12. The company launches balloons from roughly 20 sites worldwide, deploying approximately 600 balloons that collect atmospheric data — including in remote areas and extreme weather zones — and combines that proprietary dataset with government agency inputs to power its forecasts 1. Founded in 2019 by John Dean, Kai Marshland, Paige Brocidiacono, Andrey Sushko, and Joan Creus-Costa, WindBorne raised a $37M Series B on 2026-08-05 co-led by Khosla Ventures and Galvanize at a $250M post-money valuation 13.
Funding History
| Date | Round | Amount | Lead | Co-investors |
|---|---|---|---|---|
| 2026-08-05 | Series B | $37M | Khosla Ventures, Galvanize | Translink Capital, Lux Capital 13 |
What Investors Say
“Better atmospheric data could transform weather forecasting. As AI models become increasingly capable, the quality of underlying observations becomes even more important.” — Sven Strohband, Partner & Managing Director, Khosla Ventures 45
“Climate change is increasing the cost of uncertainty. More accurate weather intelligence can help communities, businesses and governments make smarter decisions.” — Saloni Multani, Co-Head of Venture and Growth, Galvanize 4
What Founders Say
“When you add balloons to the forecast, you get more accurate forecasts, and the value per data point is much stronger than satellites.” — John Dean, CEO, WindBorne Systems 1
Sources
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TechCrunch, “AI makes weather prediction better. Can WindBorne make it lucrative?” August 5, 2026. Accessed August 2026. https://techcrunch.com/2026/08/05/ai-makes-weather-prediction-better-can-windborne-make-it-lucrative/↩↩↩↩↩
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WindBorne Systems, company website, accessed August 2026. https://windbornesystems.com↩
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Forbes Technology Council profile, “John Dean | CEO and Cofounder - WindBorne Systems,” accessed August 2026. https://councils.forbes.com/profile/John-Dean-CEO-Cofounder-WindBorne-Systems/b7c08e0a-847f-4200-883e-da0916d35883↩↩
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“WindBorne Systems Raises $37 Million Series B To Expand Atmospheric Sensing Network And AI Weather Models,” Pulse 2.0, August 5, 2026. Accessed August 2026. https://pulse2.com/windborne-systems-raises-37-million-series-b-to-expand-atmospheric-sensing-network-and-ai-weather-models/ — Independent trade press confirmation of $37M Series B co-led by Khosla Ventures and Galvanize with Translink Capital and Lux Capital participating. Sources verbatim investor quotes from Sven Strohband (Khosla) and Saloni Multani (Galvanize). ↩↩
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“WindBorne Systems Raises $37 Million to Build the World’s Weather Intelligence Infrastructure,” Las Vegas Sun (BusinessWire syndication), August 5, 2026. Accessed August 2026. https://lasvegassun.com/news/2026/aug/05/windborne-systems-raises-37-million-to-build-the-w/ — Third independent primary confirmation identifying Sven Strohband as Partner & Managing Director at Khosla Ventures. ↩