- Alpha, Cornell University, 1925
- Beta, University of Pennsylvania, 1929
- Gamma, Iowa State University, 1931
- Delta, The Ohio State University, 1934
- Epsilon, Auburn University, 1948
- Zeta, Michigan State University, 1950
- Eta, Texas A&M University, 1950
- Theta, Colorado State University, 1950
- Iota, Washington State University, 1952
- Kappa, University of Minnesota, 1952
- Lambda, University of California, 1953
- Mu, University of Illinois, 1953
- Nu, Oklahoma State University, 1958
- Xi, University of Georgia, 1959
- Omicron, Purdue University, 1962
- Pi, University of Missouri, 1965
- Rho, Tuskegee University, 1967
- Sigma, Kansas State University, 1969
- Tau, Louisiana State University, 1977
- Upsilon, University of Florida, 1979
- Phi, University of Tennessee, 1979
- Chi, Virginia-Maryland Regional College of Veterinary Medicine, 1984
- Psi, North Carolina State University, 1984
- Alpha Alpha, University of Wisconsin, 1987
- Alpha Gamma, Oregon State University, 1987
- Omega, Mississippi State University, 1988
- Alpha Beta, Tufts University, 1991
- Alpha Delta, St. George University, 2006
- Alpha Epsilon, Western University of Health Sciences, 2006
- Alpha Zeta, Ross University, 2014
- Alpha Eta, Midwestern University, 2017
- Alpha Theta, Lincoln Memorial University, 2018
