Creator
Jack Kirby, Stan Lee
  
Arnold Drake, Don heck
  
Base
Broxton/Asgard; Formerly New York City
  
Serval Industries, Virginia; formerly X-Factor Investigations Headquarters, Starjammer; Xavier Institute for Higher Learning, Salem Center, Westchester County, New York; Genosha; X-Factor HQ, Washington D.C., Maryland; Mutant Research Center, Muir Island;