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 Space Forge Manufactures advanced semiconductor materials and alloys in microgravity using reusable, returnable satellite platforms for return to Earth Space Forge logo
HEAD-TO-HEAD1 shared sector
Sierra Space Space Forge
Founded 2021 2018
Headquarters Louisville, Colorado Florida, United Kingdom
Type private private
Status operating operating
Employees 1,072 64
Total funding $2.2B $51.2M
Latest round Series C Series A
Sectors Satellite Manufacturing, Space Propulsion, Space Stations & Habitats In-Space Manufacturing, Satellite Components & Subsystems, Satellite Manufacturing
Products listed 7 4
Federal contracts 1 ($6.5M)
Launches
Leaders listed Dan Jablonsky, Janet Kavandi, Troy Lahr Joshua Western, Andrew Bacon, Michelle Flemming
News mentions 0 43
SHARED SECTORS
FREQUENTLY ASKED

How do Sierra Space and Space Forge compare?

Both companies work in Satellite Manufacturing. Sierra Space was founded in 2021 and Space Forge in 2018.

Which is larger, Sierra Space or Space Forge?

Sierra Space reports the larger workforce, with 1,072 employees versus 64.

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

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.