SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
CesiumAstro logo CesiumAstro Designs, manufactures, and integrates software-defined phased array communications systems, payloads, and satellites for space, airborne, and ground platforms vs Space Machines Company Builds rapid-response orbital servicing vehicles for close-proximity inspection, monitoring, and protection of space assets across all Earth orbits Space Machines Company logo
HEAD-TO-HEAD1 shared sector
CesiumAstro Space Machines Company
Founded 2017 2019
Headquarters Austin, Texas Botany, Australia
Type private private
Status operating operating
Employees 318 38
Total funding $710.2M $5.5M
Latest round Series C Grant
Sectors Satellite Components & Subsystems, Satellite Communications, Satellite Manufacturing In-Orbit Servicing & Assembly, Satellite Manufacturing, Space Domain Awareness
Products listed 15 4
Federal contracts
Launches
Leaders listed Shey Sabripour, Kenneth Smith, Chris Pappas III Rajat Kulshrestha, George Freney, Mark Ramsey
News mentions 26 0
SHARED SECTORS
FREQUENTLY ASKED

How do CesiumAstro and Space Machines Company compare?

Both companies work in Satellite Manufacturing. CesiumAstro was founded in 2017 and Space Machines Company in 2019.

Which is larger, CesiumAstro or Space Machines Company?

CesiumAstro reports the larger workforce, with 318 employees versus 38.

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