The brigade group is composed of Canadian Forces (CF) Primary Reserve units, all of which are based within the province of British Columbia.

[4] 39 CBG is supported by several other units that provide specialist duties, such as medical services, military police and intelligence.

These units do not fall under the 39 CBG command structure; however, they do work closely with it in order to provide these services to the soldiers of the brigade group.

The unit headquarters is at Brigadier James Curry Jefferson Armoury and operates several platoons in several brigade groups.

In 2006, it was held in the streets of Kamloops, in 2007, at HMCS Quadra Sea Cadet Summer Training Centre near Comox.