activities of food service contractors (e.g. for transportation companies); industrial catering, i.e. the provision of food services based on contractual arrangements with the customer, for a specific period of time; operation of canteens or cafeterias (e.g. for factories, offices, hospitals, or schools) on a
concession basis; operation of food concessions at sports and similar facilities; the operation of food concessions at sports and similar facilities. The food is often prepared in a central unit.