The Depot Labour Company was defined in Army Council Instruction 611 of 1917.
ACI 897 of 1917 changed the name to Reserve Labour Company.
1 Major or Captain, commanding (permanent cadre)
5 Lieutenants or Second Lieutenants (1 on permanent cadre, 4 for drafting)
1 Company Sergeant Major (permanent cadre)
1 Quartermaster Sergeant (permanent cadre)
8 Sergeants (4 on permanent cadre, 4 for drafting)
18 Corporals (6 on permanent cadre (of whom 1 would be Corporal Cook and 1 Corporal Clerk), 12 for drafting)
Privates (470 all for drafting, of whom 6 would be Lance Corporals): this figure was the planned establishment, but the role of the company meant that it was variable on a day to day basis.
When the number of Privates returned from an Expeditionary Force exceeded 120 men, 2 Acting Sergeants and 4 Acting Corporals would be added for the purposes of administration. If it reached 250 or more, a further 2 Acting Sergeants and 4 Acting Corporals would be added.
The company would be organised as a headquarters of the permanent cadre and four Platoons, each under command of a Lieutenant or Second Lieutenant. Each Platoon would be organised into 2 Sections, each under a Sergeant. Each Section would be organised into 2 Sub-Sections, each under a Corporal.