SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
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 OneSpace Develops small solid-fuel launch vehicles and rocket propulsion systems, and provides rapid-response commercial launch services for microsatellite and nanosatellite customers OneSpace logo
HEAD-TO-HEAD1 shared sector
Eta Space OneSpace
Founded 2019 2015
Headquarters Rockledge, Florida, USA Beijing, China
Type private private
Status operating operating
Employees 10 140
Total funding $27.2M $120M
Latest round Grant Series C
Sectors Space Transportation & Logistics, Lunar Services, Space Propulsion Launch Services, Space Propulsion
Products listed 6 6
Federal contracts — —
Launches — 1 (0%)
Leaders listed Dr. William Notardonato Shu Chang, David Chen
News mentions 0 0
SHARED SECTORS
Space Propulsion
FREQUENTLY ASKED

How do Eta Space and OneSpace compare?

Both companies work in Space Propulsion. Eta Space was founded in 2019 and OneSpace in 2015.

Which is larger, Eta Space or OneSpace?

OneSpace reports the larger workforce, with 140 employees versus 10.

Which has more launches, Eta Space or OneSpace?

OneSpace leads with 1 tracked launches (0% success rate).

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