Sienar Intelligence Systems was a powerful branch of Santhe/Sienar Technologies. Sienar Intelligence Systems specialized in government contracts and its main rivals were Arakyd Industries and MerenData. Black Ops was a top secret laboratory belonging to Sienar Intelligence Systems.
- Cynabar's Fantastic Technology: Droids
- The Essential Guide to Droids
- Look Sir, Droids!"—Star Wars Gamer 3 "
- The Official Star Wars Fact File 75 (MAN10, Droid Manufacturers)
- The New Essential Guide to Weapons and Technology
- Scavenger's Guide to Droids