If equestrian clubs and horses are the basis for the development of the entire industry, then high-level and high-quality equestrian events and activities are the driving force of the horse industry.
If equestrian clubs and horses are the foundation of the industry as a whole, then high-quality equestrian events and events are the driving force behind the horse industry.
If equestrian clubs and horses are the basis of the development of the whole industry, then high-level and high-quality equestrian events and activities are the driving force of the horse industry.