| Impulse Space | Phase Four | |
|---|---|---|
| Founded | 2021 | 2015 |
| Headquarters | Redondo Beach, California, USA | Hawthorne, California, USA |
| Type | private | private |
| Status | operating | closed |
| Employees | 292 | 5 |
| Total funding | $895M | $35.8M |
| Latest round | Series C | Series C |
| Sectors | Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion | Space Propulsion, Satellite Components & Subsystems |
| Products listed | 5 | 4 |
| Federal contracts | — | — |
| Launches | — | — |
| Leaders listed | Tom Mueller, Eric Romo, Kevin Miller | Steve Kiser, M. Umair Siddiqui, Simon Halpern |
| News mentions | 3 | 0 |
How do Impulse Space and Phase Four compare?
Both companies work in Space Propulsion. Impulse Space was founded in 2021 and Phase Four in 2015.
Which is larger, Impulse Space or Phase Four?
Impulse Space reports the larger workforce, with 292 employees versus 5.