SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
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 Zeno Power Develops radioisotope power systems that convert heat from decaying isotopes into years of reliable electricity for lunar surface and seabed missions. Zeno Power logo
HEAD-TO-HEAD1 shared sector
Impulse Space Zeno Power
Founded 2021 2018
Headquarters Redondo Beach, California, USA Washington, District of Columbia, USA
Type private private
Status operating operating
Employees 292 79
Total funding $895M 94870000
Latest round Series C Series B
Sectors Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion Satellite Components & Subsystems, Lunar Services, Space Propulsion
Products listed 5 2
Federal contracts — —
Launches — —
Leaders listed Tom Mueller, Eric Romo, Kevin Miller Tyler Bernstein, Jonathan Segal, Jacob Matthews
News mentions 3 0
SHARED SECTORS
Space Propulsion
FREQUENTLY ASKED

How do Impulse Space and Zeno Power compare?

Both companies work in Space Propulsion. Impulse Space was founded in 2021 and Zeno Power in 2018.

Which is larger, Impulse Space or Zeno Power?

Impulse Space reports the larger workforce, with 292 employees versus 79.

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