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 Spacebilt Develops reusable spacecraft through on-orbit assembly and reprovisioning, extending operations and cutting lifecycle costs by 80% Spacebilt logo
HEAD-TO-HEAD1 shared sector
Aetherflux Spacebilt
Founded 2024 1998
Headquarters San Carlos, California London, Florida
Type private private
Status operating operating
Employees 40 7
Total funding $60M
Latest round Series A
Sectors Satellite Manufacturing, In-Space Manufacturing In-Orbit Servicing & Assembly, In-Space Manufacturing, Space Transportation & Logistics
Products listed 3 3
Federal contracts
Launches
Leaders listed Baiju Bhatt, Joe Yaffe Dave Swan, Dennis Wingo, Steve Kwast
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Aetherflux and Spacebilt compare?

Both companies work in In-Space Manufacturing. Aetherflux was founded in 2024 and Spacebilt in 1998.

Which is larger, Aetherflux or Spacebilt?

Aetherflux reports the larger workforce, with 40 employees versus 7.

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