event management
noun /ɪˌvent ˈmænɪdʒmənt/
  /ɪˌvent ˈmænɪdʒmənt/
(also events management, event planning)
 [uncountable]- the job of arranging events such as festivals, concerts, conferences, etc.- This new company will be responsible for the event management of festivals in other cities.
- There are many event management companies that can provide artists for your special occasion.