| IISS | Service | 989 | Imperial Interstellar Scout Service | ||||
| ISS | Service | 989 | Imperial Secret Service | ||||
| K-Secure | Service | 989 | Security division of the Koburg Combine | ||||
| SolSec (SolomaniSecurity) | Service | 989 | The Solomani Confederation's intelligence, political police and espionage force | ||||
| Sons of Earth, the | Service | 989 | Paramilitary organization dedicated to resisting the Imperium, prone to terorrist acts |