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 Exotrail Designs electric propulsion systems for small satellites and operates orbital transfer vehicles for last-mile delivery and in-orbit services Exotrail logo
HEAD-TO-HEAD1 shared sector
Antaris Exotrail
Founded 2021 2017
Headquarters Los Altos, California Massy, France
Type private private
Status operating operating
Employees 21 141
Total funding $7.7M $74.6M
Latest round Seed Series B
Sectors Space Software & Mission Tools, Satellite Manufacturing Space Propulsion, Space Software & Mission Tools, Space Transportation & Logistics
Products listed 4 9
Federal contracts
Launches
Leaders listed Tom Barton, Karthik Govindhasamy, John Trionfo Jean-Luc Maria, Paul Lascombes, David Henri
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Antaris and Exotrail compare?

Both companies work in Space Software & Mission Tools. Antaris was founded in 2021 and Exotrail in 2017.

Which is larger, Antaris or Exotrail?

Exotrail reports the larger workforce, with 141 employees versus 21.

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