Rhea Space Activity GPS-resilient deep space navigation and secure communication technology for defense and national security York Space Systems Designs, mass-manufactures, and operates standardized spacecraft platforms and end-to-end mission solutions for national security and commercial constellation customers 
| Rhea Space Activity | York Space Systems | |
|---|---|---|
| Founded | 2018 | 2012 |
| Headquarters | Washington, District of Columbia | Greenwood Village, Colorado |
| Type | private | public |
| Status | operating | operating |
| Employees | — | 670 |
| Total funding | $6.8M | — |
| Latest round | Series A | — |
| Sectors | Navigation & Positioning, Space Defense Systems, Space Software & Mission Tools | Satellite Manufacturing, Ground Segment & Networks, Space Defense Systems |
| Products listed | 2 | 5 |
| Federal contracts | — | — |
| Launches | — | — |
| Leaders listed | Shawn Usman, Kevin Hause, Samuel Lee | Dirk Wallinger, Mike Lajczok, Melanie Preisser |
| News mentions | 0 | 17 |
How do Rhea Space Activity and York Space Systems compare?
Both companies work in Space Defense Systems. Rhea Space Activity was founded in 2018 and York Space Systems in 2012.