The agencies will be given a brief and asked to deliver a pre-event communications strategy, theme and visuals for an event to be held on 23 February at the Earls Court show.
C&IT editor Yasmin Arrigo said: "C&IT's Agency Challenge is one of the most-read features in the magazine, so we are very excited to bring it to life. As International Confex is the leading UK show for event planners, it will be the perfect backdrop."
The winner will be selected by a corporate judging panel and the winning theme will be revealed on C&IT's stand at Confex and also given a C&IT Agency Showcase valued at £5,000. (www.eventshowcase.co.uk)
It will also be featured online in a video interview and in print in the April issue of C&IT.
Want to take part? Email: Susie.email@example.com