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 Umbra Designs, builds, and operates SAR satellite constellations delivering sub-meter Earth imagery and flight-proven spacecraft hardware Umbra logo
HEAD-TO-HEAD2 shared sectors
CesiumAstro Umbra
Founded 2017 2015
Headquarters Austin, Texas Arlington, Virginia
Type private private
Status operating operating
Employees 318 165
Total funding $710.2M $124.1M
Latest round Series C Grant
Sectors Satellite Components & Subsystems, Satellite Communications, Satellite Manufacturing Earth Observation & Remote Sensing, Satellite Components & Subsystems, Satellite Manufacturing
Products listed 15 4
Federal contracts
Launches
Leaders listed Shey Sabripour, Kenneth Smith, Chris Pappas III David Langan, Gabe Dominocielo, Todd Master
News mentions 26 0
SHARED SECTORS
FREQUENTLY ASKED

How do CesiumAstro and Umbra compare?

Both companies work in Satellite Components & Subsystems, Satellite Manufacturing. CesiumAstro was founded in 2017 and Umbra in 2015.

Which is larger, CesiumAstro or Umbra?

CesiumAstro reports the larger workforce, with 318 employees versus 165.

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