Hermeus is a US-based aerospace company focused on developing high-speed, hypersonic aircraft for national defense. The company emphasizes rapid design, build, and test of high-Mach platforms and operates programs such as Quarterhorse, Chimera, and DarkHorse to advance hypersonic capabilities. It collaborates with the Department of War to deliver capable aircraft that provide an asymmetric advantage for the American warfighter. Based in the United States, Hermeus pursues rapid prototyping and flight testing to accelerate readiness for defense applications.