SummaryDEMA Show is happening from 14 November 2018, Wednesday to 17 November 2018, Saturday at Las Vegas Convention Center in Las Vegas, NV. The organizer of the event is Diving Equipment & Marketing Association. DEMA Show is open to trade visitors. The estimated number of attendance is 10,000. The estimated number of exhibitors is 600. There will be over 250 sessions. The frequency of DEMA Show is annual.