SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
Antaris logo Antaris Provides a cloud-based software platform for satellite mission design, digital twin simulation, flight software, and constellation operations vs Apex Designs and mass-manufactures standardized satellite bus platforms for commercial and government constellation deployments across LEO, MEO, and GEO orbits. Apex logo
HEAD-TO-HEAD1 shared sector
Antaris Apex
Founded 2021 2022
Headquarters Los Altos, California, USA Los Angeles, California, USA
Type private private
Status operating operating
Employees 21 234
Total funding $7.7M $522M
Latest round Seed Series D
Sectors Space Software & Mission Tools, Satellite Manufacturing Satellite Manufacturing, Satellite Components & Subsystems
Products listed 4 3
Federal contracts 1 ($22.0M)
Launches
Leaders listed Tom Barton, Karthik Govindhasamy, John Trionfo Ian Cinnamon, Max Benassi, Adam Corey
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Antaris and Apex compare?

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

Which is larger, Antaris or Apex?

Apex reports the larger workforce, with 234 employees versus 21.

Which has more US federal contracts, Antaris or Apex?

Apex has been awarded more, with $22.0M across 1 awards.

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