How many organic companies are within a sustainment brigade?

In a sustainment brigade, the structure typically includes one organic Headquarters Company, which is primarily responsible for the command and control functions of the brigade. The Headquarters Company provides support in terms of administration, planning, and operations oversight, enabling the brigade to function effectively in its sustainment role.

The sustainment brigade also encompasses various types of support and distribution companies which focus on logistics and supply chain operations. However, the question specifically calls for the number of organic companies, meaning those that are inherent to the brigade structure, and this focuses on the Headquarters Company as the singular organic entity within that framework.

The other choices refer to components that do not fit the definition of organic companies within a sustainment brigade or represent units that are not typically contained as an intrinsic part of the brigade's organizational structure. Thus, recognizing the role of the Headquarters Company is crucial in understanding the organization of a sustainment brigade in the context of large-scale combat operations.