Philip Johnston

Philip Johnston

Co-Founder & CEO at Fermi Explorer Mission
Redmond, Washington, United States

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.

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Starcloud Raises $250M Series A Extension Led by Manhattan West, Valuing Company at $2.3B; Nvidia Joins Investors

Redmond-based Starcloud raised $250 million in a Series A extension led by Manhattan West, valuing the company at $2.3 billion and bringing total capital raised to $450 million since its 2024 founding. The company, which launched the first Nvidia H100 GPU to orbit on Starcloud-1 in November 2025, is partnering with Nvidia on the Space-1 Vera Rubin Module to deploy more space-rated GPUs and scale AI compute using orbital data centers.

Starcloud Raises $250M Extension, Valued at $2.3B, Funds Starcloud-3 and Manufacturing as It Secures Launch Capacity

Starcloud raised a $250M Series A extension (bringing the round to $420M and valuing the company at $2.3B) to build larger manufacturing capacity and its Starcloud-3 orbital AI data center, while securing launch capacity as SpaceX phases out Falcon 9 and Starship faces delays. Investors include Manhattan West Ventures, Nvidia (which invested $25M), Cisco and others; Starcloud operates Nvidia H100 GPUs in orbit and plans to fly Nvidia's Vera Rubin Space-1 chip by late 2028.

By Philip

Organizations

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  • Fermi Explorer Mission Co-Founder & CEO 2026–present · current
  • Lumen Orbit logo
    Lumen Orbit Executive Officer, Director 2025–present · current
  • Starcloud logo
    Starcloud Co-Founder & CEO 2024–present · current

Education

  • Y Combinator Co-Founder & CEO of Starcloud (YC S24) · 2024
  • Harvard University MPA, John F. Kennedy School of Government (HKS), National Security & Technology · 2017–2019
  • The Wharton School MBA · 2016–2018
  • INSEAD MBA exchange student specializing in new venture strategy · 2017
  • CFA Institute CFA Charterholder, First time passes · 2014–2016
  • Columbia University MA, Applied Mathematics · 2009–2010
  • University of Nottingham 1st Class BSc (Hons), Applied Mathematics & Theoretical Physics · 2005–2008

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