Creator
Gerry Conway, Jack Kirby, John buscema, Stan Lee
Arnold Drake, Don heck
Base
Baxter Building, New York, New York (formerly) Four Freedoms Plaza; Pier 4; Massachusetts Academy
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;