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 Antaris Provides a cloud-based software platform for satellite mission design, digital twin simulation, flight software, and constellation operations Antaris logo
HEAD-TO-HEAD1 shared sector
Aetherflux Antaris
Founded 2024 2021
Headquarters San Carlos, California Los Altos, California
Type private private
Status operating operating
Employees 40 21
Total funding $60M $7.7M
Latest round Series A Seed
Sectors Satellite Manufacturing, In-Space Manufacturing Space Software & Mission Tools, Satellite Manufacturing
Products listed 3 4
Federal contracts
Launches
Leaders listed Baiju Bhatt, Joe Yaffe Tom Barton, Karthik Govindhasamy, John Trionfo
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Aetherflux and Antaris compare?

Both companies work in Satellite Manufacturing. Aetherflux was founded in 2024 and Antaris in 2021.

Which is larger, Aetherflux or Antaris?

Aetherflux reports the larger workforce, with 40 employees versus 21.

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