Ordo Aegis - Remains vigilant over the Cadian Gate.[22a]
Ordo Astartes - Oversees the Adeptus Astartes.[22a]
Ordo Astra - Studies astronomy and stellar information.
Ordo Barbarus - Monitors pre-Industrial worlds.[22a]
Ordo Chronos - A ill-fated organization, all the members of which vanished.[10]
Ordo Custodum - Based on Terra.[22a]
Ordo Desolatus - Unknown purpose[22a]
Ordo Excorium - Monitors Exterminatus[22a]
Ordo Machinum - Oversees the Adeptus Mechanicus[22a]
Ordo Militarum - Oversees the Imperial Guard[22a]
Ordo Necros - Unknown purpose[22a]
Ordo Originatus - Tries to uncover the mystery of the Inquisition's origins.[22b]
Ordo Redactus - Tries to keep the history of the Inquisition classified.[22b]
Ordo Sanctorum - Oversees the Ecclesiarchy[22a]
Ordo Scriptorum - Monitors Imperial records and communiques.[22a]
Ordo Scriptus - Oversees Imperial historical records[22a]
Ordo Senatorum - Unknown purpose[22a]
Ordo Sepulturum - Researches current plagues afflicting the Imperium and determines how best to contain, destroy, and cure them. Created to investigate an increase in outbreaks of the Zombie Plague just before the 13th Black Crusade.[18]
Ordo Sicarius - Founded to police the activities of the Officio Assassinorum following the events of the Wars of Vindication which resulted from the events of Goge Vandire's Reign of Blood.[4]
Ordo Thanatos - Unknown purpose[22a]
Ordo Vigilus - Oversees the Ordo Necros[22a]