Ursa Major Technologies
Ursa Major Technologies is an American aerospace company founded in 2015 and based in Berthoud, Colorado. The company produces rocket engines and sells them to space launch and hypersonics companies, and the U.S. Government. The company makes a 5,000-pound thrust liquid oxygen and kerosene Hadley engine, named after a character in Ray Bradbury's The Veldt. It also develops the Ripley engine, with 50,000 pounds of thrust, aimed at the medium-launch market. Its commercial customers include C6 Launch Systems, a Canadian small satellite launcher, and U.S. launch startup Phantom Space. It also works with Generation Orbit Launch Services and with Stratolaunch. In 2017, Ursa Major raised $8 million last with participation from the Space Angels Network. In December 2021 the company closed its largest funding round to date: an $85 million Series C led by funds and accounts managed by BlackRock. In April 2023 the company had about 270 employees. In April 2023, the company  announced that it would supply the upper stage engine for Astra Space’s in-development Rocket 4. Engines

See also 

 List of private spaceflight companies
 Relativity Space
 Isar Aerospace
 Rocket Factory Augsburg AG
 Vector Launch
 Orbex
 Skyrora
 PLD Space
 Radian Aerospace

References

External links 
 Official Website

Aerospace companies of the United States
Private spaceflight companies
Privately held companies based in Colorado
American companies established in 2015