The Bealach Wardens follow the Codex Astartes structure of 10 battle companies. They differ in the roles of these companies, departing from the 5 main / 5 reserve companies structure seen in those adherent Chapters.

As with most Chapters, the 1st Company are veterans with centuries of service who are the pinnacle of the Chapter’s marshal force.

The 2nd, 3rd, 4th and 5th companies are focused on planetary and system defense favouring heavier weaponary and tank formations.

The latter companies range further away from the home systems, patrolling for threats. The 6th to 9th companies favour stealth and subterfuge; preparing the field for when the heavier companies roll in.