The Redemption Angels are located in the St Louis Testing Laboratories. Their stated goal was to reclaim the world back for humanity. It was implied that the reclamation would be both from the nanobot plague and the former powers who originally created it. Their method is unclear but they have access to a surprising number of guns and a mostly intact laboratory.
Refuge Point keeps a wary eye on this group or at least as much an eye as possible in these crazy times. It has been revealed that several members of Refuge Point betrayed the Powers to this group.