Penn State has 20 NPC's -- Since ariesrising beat me to it....here are the orgs
Alpha Chi Omega
Alpha Delta Pi
Alpha Omicron Pi
Alpha Phi
Alpha Sigma Alpha
Alpha Xi Delta
Chi Omega
Delta Delta Delta
Delta Gamma
Delta Zeta
Gamma Phi Beta
Kappa Alpha Theta
Kappa Delta
Kappa Kappa Gamma
Pi Beta Phi
Phi Mu
Sigma Delta Tau
Sigma Kappa
Sigma Sigma Sigma
Zeta Tau Alpha