SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Aerospacelab logo Aerospacelab Designs and manufactures satellite platforms, subsystems, and Earth observation payloads for LEO constellations, from 50 kg to 5,000 kg 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
Aerospacelab Sierra Space
Founded 2018 2021
Headquarters Mont-Saint-Guibert, Belgium Louisville, Colorado
Type private private
Status operating operating
Employees 400 1,072
Total funding $167.3M $2.2B
Latest round Series B Series C
Sectors Satellite Manufacturing, Earth Observation & Remote Sensing, Satellite Components & Subsystems Satellite Manufacturing, Space Propulsion, Space Stations & Habitats
Products listed 6 7
Federal contracts 1 ($6.5M)
Launches
Leaders listed Benoit Deper, Tina Ghataore, Michael Pavloff Dan Jablonsky, Janet Kavandi, Troy Lahr
News mentions 12 0
SHARED SECTORS
FREQUENTLY ASKED

How do Aerospacelab and Sierra Space compare?

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

Which is larger, Aerospacelab or Sierra Space?

Sierra Space reports the larger workforce, with 1,072 employees versus 400.

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

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.