The Association of Event Organisers Ltd (AEO) is the trade body representing companies that conceive, create, develop, manage, market, sponsor, supply or service trade exhibitions and consumer events. It is run by its members for the benefit of its members through an elected council of representatives, specialist working groups and a fulltime secretariat.

The AEO is the voice of the multi-billion pound exhibition industry both in the UK and, increasingly, around the globe.

AEO aim is to increase the significance of exhibitions within the marketing mix and to satisfy the needs of both exhibitors and visitors.