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 Solar Develops space-based solar power technology to beam continuous clean energy from geostationary orbit to Earth via wireless power transmission Space Solar logo
HEAD-TO-HEAD2 shared sectors
CesiumAstro Space Solar
Founded 2017 2022
Headquarters Austin, Texas Didcot, United Kingdom
Type private private
Status operating operating
Employees 318 10
Total funding $710.2M $508K
Latest round Series C Seed
Sectors Satellite Components & Subsystems, Satellite Communications, Satellite Manufacturing Satellite Manufacturing, Satellite Components & Subsystems
Products listed 15 2
Federal contracts
Launches
Leaders listed Shey Sabripour, Kenneth Smith, Chris Pappas III Martin Soltau, Sam Adlen, David Homfray
News mentions 26 0
SHARED SECTORS
FREQUENTLY ASKED

How do CesiumAstro and Space Solar compare?

Both companies work in Satellite Components & Subsystems, Satellite Manufacturing. CesiumAstro was founded in 2017 and Space Solar in 2022.

Which is larger, CesiumAstro or Space Solar?

CesiumAstro reports the larger workforce, with 318 employees versus 10.

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