SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Aetherflux logo Aetherflux Develops space-based solar power satellites that collect sunlight in low Earth orbit and transmit energy to portable ground receivers via infrared lasers vs CesiumAstro Designs, manufactures, and integrates software-defined phased array communications systems, payloads, and satellites for space, airborne, and ground platforms CesiumAstro logo
HEAD-TO-HEAD1 shared sector
Aetherflux CesiumAstro
Founded 2024 2017
Headquarters San Carlos, California Austin, Texas
Type private private
Status operating operating
Employees 40 318
Total funding $60M $710.2M
Latest round Series A Series C
Sectors Satellite Manufacturing, In-Space Manufacturing Satellite Components & Subsystems, Satellite Communications, Satellite Manufacturing
Products listed 3 15
Federal contracts
Launches
Leaders listed Baiju Bhatt, Joe Yaffe Shey Sabripour, Kenneth Smith, Chris Pappas III
News mentions 0 26
SHARED SECTORS
FREQUENTLY ASKED

How do Aetherflux and CesiumAstro compare?

Both companies work in Satellite Manufacturing. Aetherflux was founded in 2024 and CesiumAstro in 2017.

Which is larger, Aetherflux or CesiumAstro?

CesiumAstro reports the larger workforce, with 318 employees versus 40.

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