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 SpaceX SpaceX logo
HEAD-TO-HEAD1 shared sector
Antaris SpaceX
Founded 2021 2002
Headquarters Los Altos, California, USA Hawthorne, California, USA
Type private private
Status operating operating
Employees 21 10,493
Total funding $7.7M $1.3B
Latest round Seed Secondary Market
Sectors Space Software & Mission Tools, Satellite Manufacturing Launch Services, Satellite Communications, Satellite Manufacturing
Products listed 4 9
Federal contracts 20 ($4.90B)
Launches 810 (83%)
Leaders listed Tom Barton, Karthik Govindhasamy, John Trionfo Elon Musk, Gwynne Shotwell, Bret Johnsen
News mentions 0 28
SHARED SECTORS
FREQUENTLY ASKED

How do Antaris and SpaceX compare?

Both companies work in Satellite Manufacturing. Antaris was founded in 2021 and SpaceX in 2002.

Which is larger, Antaris or SpaceX?

SpaceX reports the larger workforce, with 10,493 employees versus 21.

Which has more US federal contracts, Antaris or SpaceX?

SpaceX has been awarded more, with $4.90B across 20 awards.

Which has more launches, Antaris or SpaceX?

SpaceX leads with 810 tracked launches (83% success rate).

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