Eta Space Develops cryogenic propellant management systems for in-space storage, transfer, and refueling, and liquid hydrogen infrastructure for terrestrial energy applications Exos Aerospace FAA-licensed reusable suborbital launch operator for payload testing, research, and orbital vehicle development 
| Eta Space | Exos Aerospace | |
|---|---|---|
| Founded | 2019 | 2014 |
| Headquarters | Rockledge, Florida | Greenville, Texas |
| Type | private | private |
| Status | operating | operating |
| Employees | 10 | — |
| Total funding | $27.2M | $7M |
| Latest round | Grant | Series A |
| Sectors | Space Transportation & Logistics, Lunar Services, Space Propulsion | Launch Services, Space Propulsion, Suborbital & High-Altitude |
| Products listed | 6 | 7 |
| Federal contracts | — | — |
| Launches | — | — |
| Leaders listed | Dr. William Notardonato | David Mitchell, John Quinn, Neil Milburn |
| News mentions | 23 | 0 |
How do Eta Space and Exos Aerospace compare?
Both companies work in Space Propulsion. Eta Space was founded in 2019 and Exos Aerospace in 2014.