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 Orbital Sidekick Operates a constellation of hyperspectral imaging satellites and delivers spectral intelligence for energy, mining, agriculture, and defense monitoring Orbital Sidekick logo
HEAD-TO-HEAD1 shared sector
Antaris Orbital Sidekick
Founded 2021 2016
Headquarters Los Altos, California San Francisco, California
Type private private
Status operating operating
Employees 21 24
Total funding $7.7M $55.4M
Latest round Seed Venture
Sectors Space Software & Mission Tools, Satellite Manufacturing Earth Observation & Remote Sensing, Geospatial Intelligence & Analytics, Satellite Manufacturing
Products listed 4 4
Federal contracts
Launches
Leaders listed Tom Barton, Karthik Govindhasamy, John Trionfo Dan Katz, Tushar Prabhakar, Spencer Hill
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Antaris and Orbital Sidekick compare?

Both companies work in Satellite Manufacturing. Antaris was founded in 2021 and Orbital Sidekick in 2016.

Which is larger, Antaris or Orbital Sidekick?

Orbital Sidekick reports the larger workforce, with 24 employees versus 21.

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