Nowadays there is often one very large company and next to the  company originated small businesses which are affiliated to it. You can also use the inequalitymaximum for complete chains. The head of the parent company is the head. Other heads of other companies may join the parent company to discuss the inequalitymaximum.

It may be that there are many small businesses like farmers. These can be brought together into a group. Here go the heads of the group to the inequalitymaximummeeting.