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 Spire Global Operates a multipurpose nanosatellite constellation delivering weather, aviation, and RF intelligence data via space-based sensors and ground infrastructure Spire Global logo
HEAD-TO-HEAD1 shared sector
Antaris Spire Global
Founded 2021 2012
Headquarters Los Altos, California, USA Vienna, Virginia, USA
Type private public
Status operating operating
Employees 21 352
Total funding $7.7M
Latest round Seed
Sectors Space Software & Mission Tools, Satellite Manufacturing Earth Observation & Remote Sensing, Geospatial Intelligence & Analytics, Ground Segment & Networks, Satellite Manufacturing
Products listed 4 4
Federal contracts
Launches
Leaders listed Tom Barton, Karthik Govindhasamy, John Trionfo Peter Platzer, Boyd Johnson, David Myers
News mentions 0 1
SHARED SECTORS
FREQUENTLY ASKED

How do Antaris and Spire Global compare?

Both companies work in Satellite Manufacturing. Antaris was founded in 2021 and Spire Global in 2012.

Which is larger, Antaris or Spire Global?

Spire Global reports the larger workforce, with 352 employees versus 21.

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