Olympus is a secret organization, with hideouts and connections both in Japan and the United States. Though mainly focusing on science, they have several "teams", consisting of two Contractors. They also have a division of soldiers, all highly trained in using weapons and martial arts. Olympus also has a few Dolls at their service.
The main goal of Olympus is currently unknown, but they seems to work very silently, and does not cooperate with any other organization besides itself.