SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Eta Space logo Eta Space Develops cryogenic propellant management systems for in-space storage, transfer, and refueling, and liquid hydrogen infrastructure for terrestrial energy applications vs Ursa Major Technologies Designs and manufactures liquid rocket engines, solid rocket motors, and hypersonic propulsion systems for commercial launch and U.S. defense applications Ursa Major Technologies logo
HEAD-TO-HEAD1 shared sector
Eta Space Ursa Major Technologies
Founded 2019 2015
Headquarters Rockledge, Florida Colorado
Type private private
Status operating operating
Employees 10 291
Total funding $27.2M $549.4M
Latest round Grant Debt
Sectors Space Transportation & Logistics, Lunar Services, Space Propulsion Space Propulsion, Satellite Components & Subsystems, Space Defense Systems
Products listed 6 6
Federal contracts — —
Launches — —
Leaders listed Dr. William Notardonato Chris Spagnoletti, Bill Nash, Justin Siebert
News mentions 0 18
SHARED SECTORS
Space Propulsion
FREQUENTLY ASKED

How do Eta Space and Ursa Major Technologies compare?

Both companies work in Space Propulsion. Eta Space was founded in 2019 and Ursa Major Technologies in 2015.

Which is larger, Eta Space or Ursa Major Technologies?

Ursa Major Technologies reports the larger workforce, with 291 employees versus 10.

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