Order of Merlin: largely American order dating back to John Dee, claimant of the legacy of Merlin, who fled to the New World after the fall of the Tudors
Seekers of Serapis: dates back to the Enlightenment, resurrection of ancient Alexandrian science cult, practices sacred geometry, weird rituals, master/students model
New Atlantean Knights: secretive order, claims and jealously guards most Atlantean artifacts, "higher" magic
Hogwart's Rip-off: England-based school for children, aims to avoid nationalist conflicts of the past
Eternal Brotherhood of Immortal Philosophers: ancient order of Chinese alchemists who claim to have achieved immortality (available only to illustrious grand masters)