Well most of the mafia is pretty much the same "families" as the ones in our world whit each larger Aerethian city having at least one. To be noted is "Black Night Group" which is made out of the "Black Moon" which is the leadership of the group while also handling the more professional jobs like large scale smuggling, the other part, "Dark Night" is quite similar to a gang. One special mafia is the "Valorian Trade Syndicate" which accepts only Valorians and is heavily focused on smuggling.