SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
CesiumAstro logo CesiumAstro Designs, manufactures, and integrates software-defined phased array communications systems, payloads, and satellites for space, airborne, and ground platforms vs Impulse Space Designs and operates orbital transfer vehicles that move payloads between orbits using high-thrust chemical propulsion, delivering to GEO in under a day Impulse Space logo
HEAD-TO-HEAD1 shared sector
CesiumAstro Impulse Space
Founded 2017 2021
Headquarters Austin, Texas Redondo Beach, California
Type private private
Status operating operating
Employees 318 292
Total funding $710.2M $895M
Latest round Series C Series C
Sectors Satellite Components & Subsystems, Satellite Communications, Satellite Manufacturing Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion
Products listed 15 5
Federal contracts
Launches
Leaders listed Shey Sabripour, Kenneth Smith, Chris Pappas III Tom Mueller, Eric Romo, Kevin Miller
News mentions 26 3
SHARED SECTORS
FREQUENTLY ASKED

How do CesiumAstro and Impulse Space compare?

Both companies work in Satellite Manufacturing. CesiumAstro was founded in 2017 and Impulse Space in 2021.

Which is larger, CesiumAstro or Impulse Space?

CesiumAstro reports the larger workforce, with 318 employees versus 292.

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