SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Antaris logo Antaris Provides a cloud-based software platform for satellite mission design, digital twin simulation, flight software, and constellation operations 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-HEAD1 shared sector
Antaris Space Solar
Founded 2021 2022
Headquarters Los Altos, California Didcot, United Kingdom
Type private private
Status operating operating
Employees 21 10
Total funding $7.7M $508K
Latest round Seed Seed
Sectors Space Software & Mission Tools, Satellite Manufacturing Satellite Manufacturing, Satellite Components & Subsystems
Products listed 4 2
Federal contracts
Launches
Leaders listed Tom Barton, Karthik Govindhasamy, John Trionfo Martin Soltau, Sam Adlen, David Homfray
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Antaris and Space Solar compare?

Both companies work in Satellite Manufacturing. Antaris was founded in 2021 and Space Solar in 2022.

Which is larger, Antaris or Space Solar?

Antaris reports the larger workforce, with 21 employees versus 10.

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