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 SpaceX SpaceX logo
HEAD-TO-HEAD1 shared sector
Sierra Space SpaceX
Founded 2021 2002
Headquarters Louisville, Colorado Hawthorne, California
Type private private
Status operating operating
Employees 1,072 10,493
Total funding $2.2B $1.3B
Latest round Series C Secondary
Sectors Satellite Manufacturing, Space Propulsion, Space Stations & Habitats Launch Services, Satellite Communications, Satellite Manufacturing
Products listed 7 9
Federal contracts 1 ($6.5M) 20 ($4.90B)
Launches 810 (83%)
Leaders listed Dan Jablonsky, Janet Kavandi, Troy Lahr Elon Musk, Gwynne Shotwell, Bret Johnsen
News mentions 0 28
SHARED SECTORS
FREQUENTLY ASKED

How do Sierra Space and SpaceX compare?

Both companies work in Satellite Manufacturing. Sierra Space was founded in 2021 and SpaceX in 2002.

Which is larger, Sierra Space or SpaceX?

SpaceX reports the larger workforce, with 10,493 employees versus 1,072.

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

SpaceX has been awarded more, with $4.90B across 20 awards.

Which has more launches, Sierra Space or SpaceX?

SpaceX leads with 810 tracked launches (83% success rate).

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