Companies
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Starcloud
Artificial Intelligence
Aerospace & Defense
$2.17B
+$51.22
2,843.43%
30 days ago
$1.80
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Starcloud is a Redmond, Washington-based space technology startup, formerly known as Lumen Orbit, building solar-powered orbital data centers designed to run AI computing workloads in space rather than on Earth.
Starcloud was founded in January 2024 by Philip Johnston, Ezra Feilden, and Adi Oltean, who previously held roles at SpaceX's Starlink division, Airbus, and McKinsey & Company respectively, pursuing an ambitious and initially widely doubted thesis: that as AI computing demand continues growing dramatically, terrestrial data centers are increasingly running into physical constraints on Earth, including limited available land, insufficient electrical grid capacity, and water resources needed for cooling, and that moving AI computing infrastructure into orbit could bypass these terrestrial bottlenecks by taking advantage of continuous, unobstructed solar power availability in space and the vacuum of space itself as a cooling medium, rather than requiring the extensive land, power grid connections, and water-based cooling systems that terrestrial data centers depend on. Starcloud's engineering approach involves building satellites equipped with solar panels for continuous power generation, radiation shielding to protect sensitive computing electronics from the harsh space radiation environment, and a cooling system adapted from International Space Station technology to manage the substantial heat generated by high-performance computing hardware operating in the vacuum of space. The company achieved a significant technical milestone in November 2025 by launching Starcloud-1, a satellite carrying an Nvidia H100 GPU, marking the first time a data-center-class graphics processing unit had operated in space, and subsequently used that satellite to run and query Google's open Gemma large language model in orbit, the first time a large language model had been run on a powerful GPU in space. Starcloud has filed with the U.S. Federal Communications Commission seeking approval to eventually deploy a constellation of up to 88,000 satellites functioning as a distributed orbital data center network, with long-term ambitions including spacecraft featuring solar arrays stretching several kilometers across to power a multi-gigawatt orbital data center, contingent on the future availability of low-cost heavy-lift launch capability such as SpaceX's Starship. The company raised a $170 million Series A round in 2026 led by Benchmark and EQT Ventures at a $1.1 billion valuation, becoming the fastest company in Y Combinator's history to reach unicorn status, just 17 months after its accelerator demo day, with additional investors including In-Q-Tel and scout funds from Andreessen Horowitz and Sequoia.
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