Possible Clues:

• Store designed to accommodate leading actors' groups
• Groups with play dates?
• Rhetorical expressions used about superior groups of players
• Companies that perform use port for processing
• Theatrical road companies
• Travelling groups of dancers or other entertainers
• Road show groups
• Publisher entertained by very French companies
• Girl Scout units*
• Word that would seem to be a portmanteau of 'traveling groups,' but isn't