We need to filter our locations by brand. Does your plugin or an extension to your plugin have this feature?
Assigning Brands To Locations
Power is the right choice for doing that. The Power add-on allows for simple categories or complex parent/child relationships between categories. Locations can be assigned to one or more categories. Your users can then search for locations based on those categories.
Add a category for each brand you offer and your users will be able to filter locations showing only those that offer specific brands.