SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Eta Space logo Eta Space Develops cryogenic propellant management systems for in-space storage, transfer, and refueling, and liquid hydrogen infrastructure for terrestrial energy applications 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-HEAD2 shared sectors
Eta Space Impulse Space
Founded 2019 2021
Headquarters Rockledge, Florida Redondo Beach, California
Type private private
Status operating operating
Employees 10 292
Total funding $27.2M $895M
Latest round Grant Series C
Sectors Space Transportation & Logistics, Lunar Services, Space Propulsion Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion
Products listed 6 5
Federal contracts
Launches
Leaders listed Dr. William Notardonato Tom Mueller, Eric Romo, Kevin Miller
News mentions 0 3
SHARED SECTORS
FREQUENTLY ASKED

How do Eta Space and Impulse Space compare?

Both companies work in Space Transportation & Logistics, Space Propulsion. Eta Space was founded in 2019 and Impulse Space in 2021.

Which is larger, Eta Space or Impulse Space?

Impulse Space reports the larger workforce, with 292 employees versus 10.

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