Castelion vs LeoLabs
Side-by-side comparison of AI visibility scores, market position, and capabilities
Raised $350M Series B (Dec 2025). $50M US Navy contract for Blackbeard hypersonic prototyping. 1,000-acre solid rocket motor facility under construction.
About
Castelion is a defense startup developing the Blackbeard hypersonic missile system, one of the few startups with an active US Navy contract for hypersonic weapons full-scale prototyping and early operational fielding. The company raised $350 million in Series B financing in December 2025 and secured a $50 million US Navy contract for Blackbeard prototyping, directly addressing the DoD's urgency to field hypersonic strike capability as China and Russia have demonstrated operational hypersonic weapons.
LeoLabs tracks 25,000+ orbital objects via 11 radar installations across 7 global sites; achieved record bookings in 2025 with triple-digit growth in US government contracts; selected to deliver next-gen radar for the US government.
About
LeoLabs is a space technology company founded in 2016 as a spin-off from SRI International and headquartered in Menlo Park, California. It specializes in space domain awareness (SDA) and space traffic management (STM), operating a global network of phased-array radar systems that provide real-time tracking of satellites and space debris in low Earth orbit (LEO). As of late 2025, LeoLabs tracks over 25,000 orbital objects, including 99.96% of all satellites and 98.56% of all debris in the US Department of Defense''s public catalog.
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