SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Impulse Space logo 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 vs Sidus Space Designs, manufactures, and operates LizzieSat small satellites, delivering AI-driven space-based data and hardware manufacturing services for defense and commercial customers Sidus Space logo
HEAD-TO-HEAD1 shared sector
Impulse Space Sidus Space
Founded 2021 2012
Headquarters Redondo Beach, California Florida’s Space Coast, Florida
Type private public
Status operating operating
Employees 292 73
Total funding $895M
Latest round Series C
Sectors Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion Satellite Manufacturing, Earth Observation & Remote Sensing, Space Defense Systems
Products listed 5 3
Federal contracts
Launches
Leaders listed Tom Mueller, Eric Romo, Kevin Miller Carol Craig, Mark Mikolajczyk, Val Ojdanic
News mentions 3 9
SHARED SECTORS
FREQUENTLY ASKED

How do Impulse Space and Sidus Space compare?

Both companies work in Satellite Manufacturing. Impulse Space was founded in 2021 and Sidus Space in 2012.

Which is larger, Impulse Space or Sidus Space?

Impulse Space reports the larger workforce, with 292 employees versus 73.

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