How do you define what constitutes the hospitality industry?

Hospitality is any business that serves food and beverage, provides entertainment or lodging and all companies that directly service them. Obvious examples are restaurants and bars, hotels, cafes and coffee houses. Hospitality also includes other businesses such as kitchen suppliers, food warehouses, linen services, museums, delis, bagel stores, food delivery routes, breweries, event planners, ecommerce that deals in food among many others.