Impulse Space vs Hermeus
Side-by-side comparison of AI visibility scores, market position, and capabilities
Impulse Space raised $150M Series B in 2024 for its high-performance chemical propulsion spacecraft (Mira and Helios) that provide in-space transportation, enabling rapid satellite deployment and orbital transfer.
About
Impulse Space develops orbital transfer vehicles (OTVs) — spacecraft with high-performance chemical propulsion systems that can transport satellite payloads from launch vehicle deployment orbits to their operational orbits, or maneuver constellations for rapid response missions. The company's Mira vehicle targets LEO and MEO missions while the larger Helios vehicle aims for GEO and cislunar missions.
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;
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.
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