You bring your top people together because some things can't be settled over email. The plan should protect that time.
A summit costs the company its most expensive hours. If the agenda is a row of slide decks, leaders could have read them at their desks. Start with what the group must decide or agree on by the last session, then build the days backward from that.
Our job is everything around that agenda. We book the rooms, run the sound and screens, keep the schedule and plan the evening. Your facilitators and executives stay on the content. If you already have an in-house meeting planner, we work alongside them.