NEUMANN SPACE Australian developer of the Neumann Drive®, an in-space electric propulsion system using solid metal propellant Portal Space Systems Manufactures solar-thermal-propelled spacecraft buses for high-delta-v, multi-orbit maneuverability and tactically responsive space operations 
| NEUMANN SPACE | Portal Space Systems | |
|---|---|---|
| Founded | 2015 | 2021 |
| Headquarters | Kent Town, Australia | Bothell, Washington |
| Type | private | private |
| Status | operating | operating |
| Employees | 21 | 22 |
| Total funding | — | — |
| Latest round | — | Series A |
| Sectors | Space Propulsion, Satellite Components & Subsystems, Satellite Manufacturing | Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion |
| Products listed | 2 | 3 |
| Federal contracts | — | — |
| Launches | — | — |
| Leaders listed | — | Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran |
| News mentions | 0 | 25 |
How do NEUMANN SPACE and Portal Space Systems compare?
Both companies work in Space Propulsion, Satellite Manufacturing. NEUMANN SPACE was founded in 2015 and Portal Space Systems in 2021.
Which is larger, NEUMANN SPACE or Portal Space Systems?
Portal Space Systems reports the larger workforce, with 22 employees versus 21.