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 Umbra Designs, builds, and operates SAR satellite constellations delivering sub-meter Earth imagery and flight-proven spacecraft hardware Umbra logo
HEAD-TO-HEAD1 shared sector
Sierra Space Umbra
Founded 2021 2015
Headquarters Louisville, Colorado Arlington, Virginia
Type private private
Status operating operating
Employees 1,072 165
Total funding $2.2B $124.1M
Latest round Series C Grant
Sectors Satellite Manufacturing, Space Propulsion, Space Stations & Habitats Earth Observation & Remote Sensing, Satellite Components & Subsystems, Satellite Manufacturing
Products listed 7 4
Federal contracts 1 ($6.5M)
Launches
Leaders listed Dan Jablonsky, Janet Kavandi, Troy Lahr David Langan, Gabe Dominocielo, Todd Master
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Sierra Space and Umbra compare?

Both companies work in Satellite Manufacturing. Sierra Space was founded in 2021 and Umbra in 2015.

Which is larger, Sierra Space or Umbra?

Sierra Space reports the larger workforce, with 1,072 employees versus 165.

Which has more US federal contracts, Sierra Space or Umbra?

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.