Portal Space Systems Manufactures solar-thermal-propelled spacecraft buses for high-delta-v, multi-orbit maneuverability and tactically responsive space operations SEAKR RTX subsidiary providing advanced space electronics — on-board processing, memory, avionics, ASIC and FPGA solutions 
| Portal Space Systems | SEAKR | |
|---|---|---|
| Founded | 2021 | 1981 |
| Headquarters | Bothell, Washington | Denver, Colorado |
| Type | private | private |
| Status | operating | operating |
| Employees | 22 | 540 |
| Total funding | — | — |
| Latest round | Series A | — |
| Sectors | Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion | Satellite Components & Subsystems, Space Propulsion |
| Products listed | 3 | 7 |
| Federal contracts | — | — |
| Launches | — | — |
| Leaders listed | Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran | — |
| News mentions | 25 | 0 |
How do Portal Space Systems and SEAKR compare?
Both companies work in Space Propulsion. Portal Space Systems was founded in 2021 and SEAKR in 1981.
Which is larger, Portal Space Systems or SEAKR?
SEAKR reports the larger workforce, with 540 employees versus 22.