RTX Aerospace and defense conglomerate making aircraft engines, avionics, missiles, air defense systems, and satellites Sidus Space Designs, manufactures, and operates LizzieSat small satellites, delivering AI-driven space-based data and hardware manufacturing services for defense and commercial customers 
| RTX | Sidus Space | |
|---|---|---|
| Founded | 2020 | 2012 |
| Headquarters | United States | Florida’s Space Coast, Florida |
| Type | private | public |
| Status | operating | operating |
| Employees | 185,000 | 73 |
| Total funding | — | — |
| Latest round | — | — |
| Sectors | Space Defense Systems, Satellite Components & Subsystems, Space Propulsion | Satellite Manufacturing, Earth Observation & Remote Sensing, Space Defense Systems |
| Products listed | 7 | 3 |
| Federal contracts | — | — |
| Launches | — | — |
| Leaders listed | — | Carol Craig, Mark Mikolajczyk, Val Ojdanic |
| News mentions | 0 | 9 |
How do RTX and Sidus Space compare?
Both companies work in Space Defense Systems. RTX was founded in 2020 and Sidus Space in 2012.
Which is larger, RTX or Sidus Space?
RTX reports the larger workforce, with 185,000 employees versus 73.