At the time of going to press, the number of pre-registrations was at 844 which is over 347 more than at the same time last year.
Amongst those are organisers from BBC Sport, L'Oréal UK, Morgan Stanley and National Rail.
Event Production Show event manager Sarah Brownlee said the attendee figure offered "an effective platform for face to face time with potential customers".
The supplier show will also have its highest ever number of new exhibitors, with 41 companies set to exhibit at the show for the first time, Ocean Media reports.
Brownlee put this down to "the 2012 effect" of major events like the Olympics and Queen’s Jubilee next year.
The tenth Event Production Show will run alongside the inaugural UK Venue Show at Olympia.
To leave a comment and let us know your thoughts.