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 EnduroSat Designs, builds, and operates software-defined small satellites and shared satellite platforms for commercial and scientific missions worldwide EnduroSat logo
HEAD-TO-HEAD1 shared sector
Antaris EnduroSat
Founded 2021 2015
Headquarters Los Altos, California Sofia, Bulgaria
Type private private
Status operating operating
Employees 21 325
Total funding $7.7M $181.6M
Latest round Seed Series C
Sectors Space Software & Mission Tools, Satellite Manufacturing Satellite Manufacturing, Satellite Components & Subsystems
Products listed 4 37
Federal contracts
Launches
Leaders listed Tom Barton, Karthik Govindhasamy, John Trionfo Raycho Raychev, Victor Danchev, Emmanuel Sauzay
News mentions 0 6
SHARED SECTORS
FREQUENTLY ASKED

How do Antaris and EnduroSat compare?

Both companies work in Satellite Manufacturing. Antaris was founded in 2021 and EnduroSat in 2015.

Which is larger, Antaris or EnduroSat?

EnduroSat reports the larger workforce, with 325 employees versus 21.

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