Sorry for the long delay on this!!
Loner groups can be noted on the Wiki under Characters, so for example, a group called Secret Mercs could be under Wiki>Characters>Secret Mercs and den claims may be listed on that page. This is similar to how single Loners may list den claims on their individual Wiki page or forum profile.
While Loner groups may be mentioned on specific territory or subterritory Wiki pages, we want to avoid marking den claims on those pages, as that might cause confusion regarding trespassing procedures and the status of the Loner group VS packs.