A promotional 7th clan that was published as a stretch goal during the Kickstarter campaign.
From the publisher‘s website:
Founded in California by WW2 veterans, the Hells Dogs MC quickly spread all across the U.S. and Canada. They now count chapters in all the major cities of North America. These bikers tasted the joy of the 70s by being better at consuming the product than distributing it. Until they decided to use their fondness for immoderate violence to get in the business. Progressively, they began to contest the established monopoly of drug dealers in their cities, and soon emerged as some of the major players of drug trafficking in the continent. The Hells Dogs are a collegiate organization; meaning that their president is not omnipotent and that all the important decisions need to be voted unanimously by the inner circle.
These nomadic riders are present in all of North America; thus allowing the Hells Dogs to start their operations from Illinois, California as well as British Columbia.