SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Sierra Space logo Sierra Space Designs and manufactures satellite platforms, reusable spaceplanes, expandable habitats, and propulsion systems for national security and civil space 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
Sierra Space Ursa Major Technologies
Founded 2021 2015
Headquarters Louisville, Colorado Colorado
Type private private
Status operating operating
Employees 1,072 291
Total funding $2.2B $549.4M
Latest round Series C Debt
Sectors Satellite Manufacturing, Space Propulsion, Space Stations & Habitats Space Propulsion, Satellite Components & Subsystems, Space Defense Systems
Products listed 7 6
Federal contracts 1 ($6.5M)
Launches
Leaders listed Dan Jablonsky, Janet Kavandi, Troy Lahr Chris Spagnoletti, Bill Nash, Justin Siebert
News mentions 0 18
SHARED SECTORS
FREQUENTLY ASKED

How do Sierra Space and Ursa Major Technologies compare?

Both companies work in Space Propulsion. Sierra Space was founded in 2021 and Ursa Major Technologies in 2015.

Which is larger, Sierra Space or Ursa Major Technologies?

Sierra Space reports the larger workforce, with 1,072 employees versus 291.

Which has more US federal contracts, Sierra Space or Ursa Major Technologies?

Sierra Space has been awarded more, with $6.5M across 1 awards.

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