Well, I don’t think I’ve gotten to mc-festival scale yet so I don’t know. I’ve got a few festivals in the 25k attendee range, which is big but I have vended at some that are and order of magnitude bigger. The biggest fest I do, Circleville Pumpkin Show, gets 400,000 people, is so old it had to skip a year for WWI, and is very much the opposite of a corporate festival.
But I’ve also done the MLB all-star game, and subcontracted through a few major f&b firms and those started off as corporate as they come.
I don’t think I’ve yet been involved in one that became corporate after starting off small but I’ll let you know if I get there.