Holowan Laboratories, located on the planet of Halowan the so-called "Friendly Technology People," were the designers and manufacturers of the IG-88 line of assassin droids. Holowan Mechanicals, responsible for the IG-100 MagnaGuard droids, was a subsidiary of this company. This was where IG-88A first escaped, slaughtered his creators, and programmed IG-88B, IG-88C, and IG-88D. He also met IG-72.