SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Rocket Lab USA logo Rocket Lab USA vs Sierra Space Designs and manufactures satellite platforms, reusable spaceplanes, expandable habitats, and propulsion systems for national security and civil space Sierra Space logo
HEAD-TO-HEAD1 shared sector
Rocket Lab USA Sierra Space
Founded 2006 2021
Headquarters Long Beach, California Louisville, Colorado
Type public private
Status operating operating
Employees 1,627 1,072
Total funding $2.2B
Latest round Series C
Sectors Launch Services, Satellite Components & Subsystems, Satellite Manufacturing Satellite Manufacturing, Space Propulsion, Space Stations & Habitats
Products listed 16 7
Federal contracts 1 ($7.0M) 1 ($6.5M)
Launches 130 (65%)
Leaders listed Sir Peter Beck, Adam Spice, Frank Klein Dan Jablonsky, Janet Kavandi, Troy Lahr
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Rocket Lab USA and Sierra Space compare?

Both companies work in Satellite Manufacturing. Rocket Lab USA was founded in 2006 and Sierra Space in 2021.

Which is larger, Rocket Lab USA or Sierra Space?

Rocket Lab USA reports the larger workforce, with 1,627 employees versus 1,072.

Which has more US federal contracts, Rocket Lab USA or Sierra Space?

Rocket Lab USA has been awarded more, with $7.0M across 1 awards.

Which has more launches, Rocket Lab USA or Sierra Space?

Rocket Lab USA leads with 130 tracked launches (65% success rate).

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