Izaya's information broking organization

Izaya Orihara runs his own information broking organization. The organization act as a major force of infliuence throughout the series, with the members (both willing and unwilling) performing jobs around the city for Izaya in order to further his goals.

Members and allies

 * Izaya Orihara - leader
 * Namie Yagiri - secretary
 * Nakura - acts as a fake Izaya
 * Saki Mikajima - formerly
 * Mikage Sharaku

Dollar-based group
A group of people gathered who either have a grudge against the Dollars, or are in the Dollars.
 * Ran Izumii
 * Haruna Niekawa
 * Sloan
 * Kine
 * Manami Mamiya
 * The Dragon Zombie gang

Other

 * Celty Sturluson - occasionally hired by Izaya to perform different tasks.