Hermeus vs Relativity Space
Side-by-side comparison of AI visibility scores, market position, and capabilities
Defense tech company building fastest unmanned hypersonic aircraft for US warfighter; raised $350M at $1B valuation in Apr 2026 led by Khosla Ventures; $500M+ total funding; partnered with Pratt & Whitney on F100 engine modification for Mach 5 flight.
About
Hermeus is a Los Angeles-based defense tech company building autonomous hypersonic aircraft capable of flying five times the speed of sound. The company reached unicorn status in April 2026 after closing a $350 million round ($200M equity, $150M debt) led by Khosla Ventures, with participation from Founders Fund, In-Q-Tel, RTX Ventures, Cox Enterprises, and Destiny Tech100.
Relativity Space is building the world's first fully 3D-printed rocket, using autonomous robotic manufacturing to reduce production time from years to 60 days. HQ: Long Beach, CA.
About
Relativity Space is an aerospace company pioneering a new approach to rocket manufacturing through large-scale 3D printing and autonomous robotics, with the goal of building a fully vertically integrated launch company that can design, manufacture, and launch rockets at a fraction of traditional cost and time. Founded in 2015 by Tim Ellis and Jordan Noone, former SpaceX and Blue Origin engineers, Relativity uses its proprietary Stargate metal 3D printing system — the world's largest metal 3D printer — to fabricate rocket structures from aluminum alloy, reducing part counts from 100,000+ (traditional rockets) to under 1,000.
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