AffimaX (秘密結社アフィ魔Ｘ, Himitsu Kessha Afimakusu, literally: Secret Society AfimaX) is an organization started by Affimojas together with Steamax. The members are five including them and by using information they manipulate the world from the shadows, obtaining huge profits. In addition, it looks like they're looking for "That thing" at the same time.
AffimaX functions as a semi-secret criminal syndicate, at least that is the general impression they give off on the surface. During the events of the second arc of Megadimension Neptunia VII, they are implied to be the true backers of the various groups stirring up trouble or otherwise exerting influence in Lastasion and Lowee. Their hand also felt in events in both Leanbox and Planeptune.
Their more covert activities involve running a blog with the intent of altering perceptions of events and influencing public opinion, especially for the purposes of sowing further strife so as to be able to perpetually gather content with can then be selectively presented to the public in furtherance of their news manipulation agenda, which is actually their primary goal.