As Group Managing Director of Montgomery Group, Damion has spent the last fourteen years growing Montgomery as an ‘umbrella’ brand that represents the interests of over fifteen different companies. These companies manage a wide range of businesses across the exhibition industry covering trade shows, consumer shows, art and photography fairs, awards programmes, agency sales and consultancy. Montgomery is also a shareholder in the Johannesburg Expo centre.

In addition to his role within Montgomery, Damion is also heavily involved in the Association of Event Organisers (AEO) in the UK which he chaired in 2017/18. He is also a Board member of SISO.