Order of the Gauntlet — a devout and vigilant group that seeks to protect others from the depredations of evil-doers. The order is always ready to smite evil, enforce justice, and enact retribution against any who try to subjugate or harm others.

Argent Twilight — The Argent Twilight is a secretive organization dedicated to recovering lost arcane lore and magical items. They also are intensely focused on recovering technologies from Ancient civilizations. This organization courts arcanists — particularly Enchanters, and Thieves — especially Dungeoneers. They seek reports, recovered scrolls and tomes, and ancient magic items and technologies so that they may study and (it is hoped) be able to replicate them. In exchange for members' supplying — or promising to supply — these things, the Argent Twilight is willing to provide its members supplies, knowledge, wealth, and other assistances.

The Seekers are brotherhood that works to reclaim the lost knowledge of Earth's previous ages, even back in the dimmest past — for the Earth is far older than even the wisest living sages can estimate.

In this, the Scarlet Horizons campaign setting bears kinship with Kevin Crawford's Worlds Without Number or Monte Cook's Numenera.