Mercenary band? This greatly interests me.
The SCA divides up the “Known World” into:
Kingdoms – Large multi-state / multi-national areas (e.g. Northshield = ND, SD, MN, WI, UP of MI, Manitoba, and NW Ontario)
Barony – Large local groups, usually metropolitan areas (e.g. Nordskogen = St. Paul, Minneapolis, and suburbs)
Canton / Shire / Village – Smaller local groups outside large metropolitan areas
College – Just that, a college campus
These groups are usually mapped along USPS zip code lines.
There are also (officially unrecognized) groups of like-minded people, most often called Households. These households can consist of a Knight and his close group of friends / followers, a group of artisans, a group of fighters, etc. Some Households are small and some are quite large covering many states / countries. They go by many names from households to guilds to hoards to companies. The variety is endless and ever changing.
My local group of friends is called The Mercenary Company Nevermore. We all started out as a group of single 20-something males that liked to travel all over the Midwest hitting people with rattan sticks. We bristled at the idea of being a household and thus called ourselves a mercenary company (potato / potato’). At one point we fielded nearly 20 fighters in pickle barrel armour and bad great helms. Many stories from this youthful era are not PG rated.
Eventually guys moved on to other hobbies, got married, had kids, got divorced, moved to other states, got broken, got old, got sick, or all the above. No we have a core group of 7 who fight (4 with any regularity), our spouses and children. We’ve naturally transitioned to more historically accurate kits, clothing, tents, camps, etc. While far from a living history level of detail, we do present a nice encampment. We still enjoy the camaraderie and evening gatherings, but no longer carry our company bar (complete with blender & brass rail) with us from camp to camp.