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Private Markets, Angel and Secondary Investing

Bringing transparency to private markets so investors, founders, and employees can build on conviction. Sacra delivers deeply researched insights on the private companies shaping tomorrow's markets. By surfacing the data, context, and operator perspective that are missing from private markets today, we help secondary buyers and sellers price equity accurately and unlock liquidity for the people building these businesses.

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<ul><li>WindBorne reported that revenue tripled over the twelve months through August 2026, as its fleet expanded to more than 600 autonomous weather balloons.</li><li>In October 2026, the US Air Force awarded WindBorne its largest contract to date, with a ceiling of $49M and $1.7M in orders placed at announcement.</li><li>WindBorne raised a $37M Series B in August 2026, co-led by Khosla Ventures and Galvanize with participation from Translink Capital, Biprogy, Lux Capital, and existing investors.</li></ul>

WindBorne reported that revenue tripled over the twelve months through August 2026, as its fleet expanded to more than 600 autonomous weather balloons.In October 2026, the US Air Force awarded WindBorne its largest contract to date, with a ceiling of $49M and $1.7M in orders placed at announcement.WindBorne raised a $37M Series B in August 2026, co-led by Khosla Ventures and Galvanize with participation from Translink Capital, Biprogy, Lux Capital, and existing investors.

United States

WindBorne operates autonomous weather balloons and sells atmospheric observations and AI-powered forecasts to government agencies and businesses.

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WindBorne (WINDBORNE US)

Primer: WindBorne - 13 Oct 2026

WindBorne operates autonomous weather balloons and sells atmospheric observations and AI-powered forecasts to government agencies and businesses.

Sacra

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