| X-Factor Investigations | |
|---|---|
 The X-Factor team. Art by David Yardin. | |
| Publication information | |
| Publisher | Marvel Comics |
| First appearance | Madrox #5, (March 2005) |
| Created by | Peter David Pablo Raimondi |
| In-story information | |
| Base(s) | Detroit, Michigan, United States District X, New York City |
| Member(s) | Formerly Banshee Butterfly Darwin Havok Longshot M Multiple Man Pip the Troll Polaris Rictor Shatterstar Strong Guy Wolfsbane |
X-Factor Investigations is a fictional detective agency appearing in American comic books published by Marvel Comics. The organization was created by writer Peter David for the comic book series X-Factor (vol. 3). The agency first appears under the name XXX Investigations in the first issue of the Marvel Comics limited series Madrox #1 (November 2004). In the final issue, Madrox #5 (March 2005), the name is changed to X-Factor Investigations, and later abbreviated XF Investigations.