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 ClearSpace Designs and operates robotic spacecraft for active debris removal, satellite life extension, and in-orbit inspection services ClearSpace logo
HEAD-TO-HEAD1 shared sector
Antaris ClearSpace
Founded 2021 2018
Headquarters Los Altos, California Renens, Luxembourg
Type private private
Status operating operating
Employees 21 92
Total funding $7.7M $36M
Latest round Seed Series A+
Sectors Space Software & Mission Tools, Satellite Manufacturing Space Sustainability & Debris Removal, In-Orbit Servicing & Assembly, Satellite Manufacturing
Products listed 4 5
Federal contracts
Launches
Leaders listed Tom Barton, Karthik Govindhasamy, John Trionfo Luc Piguet, Muriel Richard, Valéry Gineste
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Antaris and ClearSpace compare?

Both companies work in Satellite Manufacturing. Antaris was founded in 2021 and ClearSpace in 2018.

Which is larger, Antaris or ClearSpace?

ClearSpace reports the larger workforce, with 92 employees versus 21.

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