I'm not sure what tech you're planning to use, but if you use Zoom, they have a webinar mode where you can allow "panelists". The panelists can talk and interact, and everyone else is view only.
Thanks for that recommendation! We're trying to find one that seamlessly moves from a "Panelists" view to a more networking/tables setting. (Where you can interact with founders/employees, and even one another, in small groups.)
We have a few in mind, but open to suggestions!
Zoom does that too! I did an investor speed dating the other day that was exactly that. They just moved me from one breakout room to another. It was pretty flawless.