Diversified Exhibitions Australia was founded in 1982 under the name Australian Exhibition Services (AES) specialising in providing critical market knowledge for customers across a variety of industries. Diversified Exhibitions Australia currently specialises in the commercial exhibitions and industrial exhibitions industries, particularly: trade expo's, conferences, trade events and consumer shows.

Examples of exhibitions conducted by Diversified Exhibitions Australia include: Designbuild Australasia - Australia's largest and most international building and design exhibition, Design & Build Queensland, Fine Food Australia, Good Food and Wine Show, Investment Expo, Franchising Expo, Property Expo, Australian Fitness Expo, Retail Expo and the Security Expo.

Over 10,000 businesses are present at the more than 360 trade exhibitions on offer each year. In terms of customers, Diversified Exhibitions enjoys over 5 million attendees at its annual exhibitions. This helps to create an economic result of $2.3 billion in related expenditure.