SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Ursa Major Technologies logo Ursa Major Technologies Designs and manufactures liquid rocket engines, solid rocket motors, and hypersonic propulsion systems for commercial launch and U.S. defense applications vs Zeno Power Develops radioisotope power systems that convert heat from decaying isotopes into years of reliable electricity for lunar surface and seabed missions Zeno Power logo
HEAD-TO-HEAD2 shared sectors
Ursa Major Technologies Zeno Power
Founded 2015 2018
Headquarters Colorado Washington, District of Columbia
Type private private
Status operating operating
Employees 291 79
Total funding $549.4M $94.9M
Latest round Debt Series B
Sectors Space Propulsion, Satellite Components & Subsystems, Space Defense Systems Satellite Components & Subsystems, Lunar Services, Space Propulsion
Products listed 6 2
Federal contracts
Launches
Leaders listed Chris Spagnoletti, Bill Nash, Justin Siebert Tyler Bernstein, Jonathan Segal, Jacob Matthews
News mentions 18 0
SHARED SECTORS
FREQUENTLY ASKED

How do Ursa Major Technologies and Zeno Power compare?

Both companies work in Space Propulsion, Satellite Components & Subsystems. Ursa Major Technologies was founded in 2015 and Zeno Power in 2018.

Which is larger, Ursa Major Technologies or Zeno Power?

Ursa Major Technologies reports the larger workforce, with 291 employees versus 79.

Numbers refresh on every render against the live Space Index database. Federal contract data from USAspending.gov; launches from LaunchLibrary2.