Philip Johnston
Co-Founder & CEO at Fermi Explorer Mission
Philip Johnston is Co-Founder & CEO at Fermi Explorer and Starcloud, and serves as Executive Officer and Director at Lumen Orbit, Inc. He founded Starcloud, a startup that is still running, and has expertise in building data centers in space.
Philip Johnston announces Starcloud’s $170M Series A at $1.1B valuation to build space data centers
Starcloud raised a $170M Series A at a $1.1B valuation to advance development of space-based data centers, funding their third satellite aimed at making AI inference cost-competitive with Earth centers after deploying Starcloud-1 which trained an LLM in space.
Philip Johnston announces: "Starcloud is growing!"
Philip Johnston posted a first-party announcement titled "Starcloud is growing!" indicating that Starcloud is expanding.
Organizations
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Fermi Explorer Mission Co-Founder & CEO 2026–present · current
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Lumen Orbit Executive Officer, Director 2025–present · current
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Starcloud Co-Founder & CEO 2024–present · current
Education
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Y Combinator Co-Founder & CEO of Starcloud (YC S24) · 2024
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Harvard University MPA, John F. Kennedy School of Government (HKS), National Security & Technology · 2017–2019
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The Wharton School MBA · 2016–2018
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INSEAD MBA exchange student specializing in new venture strategy · 2017
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CFA Institute CFA Charterholder, First time passes · 2014–2016
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Columbia University MA, Applied Mathematics · 2009–2010
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University of Nottingham 1st Class BSc (Hons), Applied Mathematics & Theoretical Physics · 2005–2008
