Ursa Major Raises $100 Million Series E

Ursa Major raises $100M Series E round to scale hypersonic, space propulsion, and solid rocket motor programs.

Ursa Major has secured $100 million in Series E funding, along with an additional $50 million in debt commitments, marking a major step in expanding its advanced propulsion manufacturing capabilities. 

The round was led by Eclipse with participation from Woodline Partners LP, Principia Growth, XN, Alsop Louie Partners, and other institutional investors.

The company also reported more than $115 million in bookings through the first three quarters of 2025, spanning government and commercial contracts with the U.S. Department of War, AFRL, Stratolaunch, and BAE Systems.

With this capital, Ursa Major plans to accelerate production of its throttleable, storable liquid-fueled hypersonic engines, scale its solid rocket motor programs, and expand manufacturing capacity for in-space propulsion systems.

Over the past year, the company has achieved several technical milestones, including multiple hypersonic engine flights, progress on solid motor manufacturing, and continued testing of space propulsion platforms. 

Board additions Ronald Sugar and Gilman Louie further signal the company’s momentum as it positions itself as a next-generation U.S. propulsion supplier capable of industrial-scale output.

Investors highlighted Ursa Major’s ability to modernize the aerospace and defense industrial base with rapidly delivered, high-performance propulsion systems.

Image Credits: Ursa Major