Hey, at least it's cool.
You could always go with the old standby of "The Wrath of God" or something along those lines. Is the organization outright religious in nature, or is this just Theme Naming?
A little bit of both really. Think something along the line of the Jedi Order. So something as ominous sounding like that probably wouldn't work.
edited 6th Apr '11 11:31:21 PM by Rynnec
Latin and Aramaic are the go-to languages for a case like this. In English, angelic themes call for words like Host. Heavenly Host, Sacred Host, stuff like this. You may also pick fun names like Punishing Hand Of Lord or Terrible Swift Sword. Or something more poetic, like Myriad or Pillar Of Smoke. Have you tried looking for badass-sounding Biblical quotes? That should do.

Since The Rival of the main character works for one,and as such said faction will be important to the story. I have most of the names of their various ranks down (e.g Seraph, Archangel, etc.) So I just need the name for the actual Organization.
The setting is a sort of pseudo-future Magitek world, if that helps any.