Depends on your tradition, of course, but here's a group for Seasons 3 and 4:
The Conquistadors
Purpose: The Conquistadors is a group of Hermetic mages, Christian theurges and warrior adepts devoted to mutual protection and service to the oppressed. The group functions primarily in helping its members’ mystical journeys, through initiation and other magical resource sharing.
Members: 4
Strictures: Exclusive Membership, Exclusive Ritual, Fraternity, Oath, Secrecy
Resources/Dues:
SRM Season 3 (New York): Street. Members share their personal resources, such as lodges, but there is no group headquarters.
SRM Season 4 (Seattle): High Resources.
I imagine there are more out there, but Bull backed off of the initial crackdown because you still have to spend Karma to join and it doesn't pay off (Karma-wise) until you initiate 2 or 3 times in the group.