SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
Sierra Space logo Sierra Space Designs and manufactures satellite platforms, reusable spaceplanes, expandable habitats, and propulsion systems for national security and civil space vs Vast Designs and manufactures commercial space stations in low Earth orbit for crewed missions, microgravity research, and in-space manufacturing. Vast logo
HEAD-TO-HEAD1 shared sector
Sierra Space Vast
Founded 2021 2021
Headquarters Louisville, Colorado, USA Long Beach, California, USA
Type private private
Status operating operating
Employees 1,072 1,000
Total funding $2.2B $1.5B+
Latest round Series C Series A
Sectors Satellite Manufacturing, Space Propulsion, Space Stations & Habitats Space Stations & Habitats, In-Space Manufacturing
Products listed 7 3
Federal contracts 1 ($6.5M)
Launches
Leaders listed Dan Jablonsky, Janet Kavandi, Troy Lahr Jed McCaleb, Max Haot, Alex Hudson
News mentions 0 3
SHARED SECTORS
FREQUENTLY ASKED

How do Sierra Space and Vast compare?

Both companies work in Space Stations & Habitats. Sierra Space was founded in 2021 and Vast in 2021.

Which is larger, Sierra Space or Vast?

Sierra Space reports the larger workforce, with 1,072 employees versus 1,000.

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

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.