ZECT
ZECT is a mysterious organization that seemingly acts in order to destroy Worms. However, they seem to have very secret agenda and connections with Worms. This is shown in episode 41 as the Natives were the ones who originally founded ZECT and created the Masked Rider System to work with humans. The true head counsel of ZECT is a group of Native Worms.
Read more about this topic: List Of Kamen Rider Kabuto Characters