Division X

The Division of Extra-terrestrial and Abnormal Operations: Containment Foundation X (地球外および異常作戦の部門：封じ込め財団), simply referred to as Division X (部門), was a corrupt governmental organization and the hidden primary antagonistic force in the Battle Trial, Mutant Outbreak, and Final Exam arcs, formerly led by Edo Kaiba and Zero.

The division was created to monitor abnormal activity on Earth, directed by Edo Kaiba until he was killed and impersonated by Zero. Under his leadership, the division used Silver's group to track down and capture mutants for personal gain. The organization assigned agent Russell Johnson to the team, and after the attack on their headquarters, it attempted to cover up various shady practices.

However, Zero was exposed and Division X was taken down by Silver and Helix.