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 SpinLaunch Builds kinetic launch systems using ground-based centrifuges and develops the Meridian LEO broadband constellation for enterprise communications SpinLaunch logo
HEAD-TO-HEAD1 shared sector
Sierra Space SpinLaunch
Founded 2021 2014
Headquarters Louisville, Colorado Long Beach, California
Type private private
Status operating operating
Employees 1,072 27
Total funding $2.2B $249M
Latest round Series C Series C
Sectors Satellite Manufacturing, Space Propulsion, Space Stations & Habitats Launch Services, Satellite Communications, Satellite Manufacturing
Products listed 7 4
Federal contracts 1 ($6.5M)
Launches
Leaders listed Dan Jablonsky, Janet Kavandi, Troy Lahr Massimiliano Ladovaz, David Wrenn
News mentions 0 16
SHARED SECTORS
FREQUENTLY ASKED

How do Sierra Space and SpinLaunch compare?

Both companies work in Satellite Manufacturing. Sierra Space was founded in 2021 and SpinLaunch in 2014.

Which is larger, Sierra Space or SpinLaunch?

Sierra Space reports the larger workforce, with 1,072 employees versus 27.

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

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.