I think UCF falls in the “major program” category, I think USF is in next tier along with FAU, and even FIU. I don’t disagree that there are a lot of transplanted fans, I’ve been to a number of Bills, Dolphins games, while the crowd is predominantly Fins fans, there are a lot of Bills fans. Same is true of the other professional teams. The college teams have been established longer and there are way less transplanted fans of other teams.
I have no idea what corporations are headquartered in Jacksonville.