AGCO Corp, an agricultural equipment manufacturer, worked with Jimmy Birchmore Events to deliver the event, which opens to the public later this week and is expected to attract more than 8,000 attendees.
The showcase included a conference and a selection of workshops with an evening dinner to finish the event.
Ben Agar, manager marketing services at AGCO Corporation, said: "This is an after-sales conference aimed at the whole dealer network, as well as a total showcase of what we can do.
"We looked at a number of venues but only the NEC had the size, space and logistics in place to accommodate what we wanted to do."
An estimated £1m of audio and visual equipment was brought in for the three-day event, which concludes this Thursday (February 27).