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 European Space Agency Intergovernmental agency coordinating European space programs across science, Earth observation, navigation, telecommunications, and human spaceflight European Space Agency logo
HEAD-TO-HEAD1 shared sector
CesiumAstro European Space Agency
Founded 2017 1975
Headquarters Austin, Texas Paris, France
Type private government
Status operating operating
Employees 318 3,739
Total funding $710.2M
Latest round Series C
Sectors Satellite Components & Subsystems, Satellite Communications, Satellite Manufacturing Planetary Exploration, Earth Observation & Remote Sensing, Launch Services, Navigation & Positioning, Satellite Communications
Products listed 15 8
Federal contracts
Launches
Leaders listed Shey Sabripour, Kenneth Smith, Chris Pappas III Josef Aschbacher, Dietmar Pilz, Toni Tolker-Nielsen
News mentions 26 14
SHARED SECTORS
FREQUENTLY ASKED

How do CesiumAstro and European Space Agency compare?

Both companies work in Satellite Communications. CesiumAstro was founded in 2017 and European Space Agency in 1975.

Which is larger, CesiumAstro or European Space Agency?

European Space Agency reports the larger workforce, with 3,739 employees versus 318.

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