| Portal Space Systems | Sierra Space | |
|---|---|---|
| Founded | 2021 | 2021 |
| Headquarters | Bothell, Washington | Louisville, Colorado |
| Type | private | private |
| Status | operating | operating |
| Employees | 22 | 1,072 |
| Total funding | $20M | $2.2B |
| Latest round | Seed | Series C |
| Sectors | Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion | Satellite Manufacturing, Space Propulsion, Space Stations & Habitats |
| Products listed | 3 | 7 |
| Federal contracts | — | 1 ($6.5M) |
| Launches | — | — |
| Leaders listed | Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran | Dan Jablonsky, Janet Kavandi, Troy Lahr |
| News mentions | 0 | 0 |
How do Portal Space Systems and Sierra Space compare?
Both companies work in Satellite Manufacturing, Space Propulsion. Portal Space Systems was founded in 2021 and Sierra Space in 2021.
Which is larger, Portal Space Systems or Sierra Space?
Sierra Space reports the larger workforce, with 1,072 employees versus 22.
Which has more US federal contracts, Portal Space Systems or Sierra Space?
Sierra Space has been awarded more, with $6.5M across 1 awards.