Ursa Major

Ursa Major is a premier independent rocket propulsion company, playing a vital role in strengthening the United States defense industrial base. As the first American company to successfully test an oxygen-rich staged combustion engine—an achievement previously dominated by Russian technology—Ursa Major delivers reusable, high-performance propulsion systems. Their engines support commercial space ventures, defense contractors, and the Department of Defense, catering to missions in launch, hypersonics, and national security, making Ursa Major a key innovator in advanced propulsion technology.