Most NPC groups on any campus

[TSteven]

There may be others, but as far as I can recall, there are (at least) nine other national organizations that at one time belonged to the NPC. All of which either disbanded or merged with/were acquired by another NPC organization.

Alpha Delta Theta
Beta Phi Alpha
Beta Sigma Omicron
Delta Sigma Epsilon
Iota Alpha Pi
Phi Omega Theta
Pi Kappa Sigma
Theta Sigma Upsilon
Theta Upsilon

So if you were to add these nine to the current twenty-six NPC organizations, I wonder which campuses would have had the most chapters out of thirty-five (26 current NPCs plus 9 former NPCs).