Corporate hospitality is the entertainment that a company offers to its most valued clients, for example by inviting them to sporting events and providing them with food and drink.
[business]
...corporate hospitality at football grounds.
...executives in a corporate hospitality tent.
corporate hospitality in British English
(ˈkɔːpərət ˌhɒspɪˈtælɪtɪ)
noun
entertaining carried out by businesses for the benefit of their actual or potential clients