There are 2 "Atlas" companies:
Atlas Air Worldwide Holdings is the holding company that owns Atlas Air, Inc, and 51% (cough, cough) of Polar Air Cargo, and 49% (cough, cough) of Global Supply Services, and Titan Air Leasing, and a few other minor players. Lots of suits; not many (if any) knowledgeable pilots.
Atlas Air, Inc is the company that actually employs working pilots and flight engineers, and owns/controls AACS/AABO.