| Chapter | Charter date and range | Institution | Location | Status | |
| Alpha | 1925 | New York State [College of Veterinary Medicine at Cornell University] | Ithaca, New York | Active | |
| Beta | 1929 | University of [Pennsylvania School of Veterinary Medicine] | Philadelphia and New Bolton Center, Pennsylvania | Active | |
| Gamma | 1931 | Iowa State University College of Veterinary Medicine | Ames, Iowa | Active | |
| Delta | 1934 | Ohio State University | Columbus, Ohio | Active | |
| Epsilon | 1948 | Auburn University | Auburn, Alabama | Active | |
| Zeta | 1950 | Michigan State University College of Veterinary Medicine | East Lansing, Michigan | Active | |
| Eta | 1950 | Texas A&M University School of Veterinary Medicine & Biomedical Sciences | College Station, Texas | Active | |
| Theta | 1950 | Colorado State University | Fort Collins, Colorado | Active | |
| Iota | 1952 | Washington State University College of Veterinary Medicine | Pullman, Washington | Active | |
| Kappa | 1952 | University of Minnesota | Saint Paul, Minnesota | Active | |
| Lambda | 1953 | UC Davis School of Veterinary Medicine | Davis, California | Active | |
| Mu | 1953 | University of Illinois College of Veterinary Medicine | Urbana, Illinois | Active | |
| Nu | 1958 | Oklahoma State University–Stillwater | Stillwater, Oklahoma | Active | |
| Xi | 1959 | University of Georgia College of Veterinary Medicine | Athens, Georgia | Active | |
| Omicron | 1962 | Purdue University | West Lafayette, Indiana | Active | |
| Pi | 1965 | University of Missouri College of Veterinary Medicine | Columbia, Missouri | Active | |
| Rho | 1967 | Tuskegee University | Tuskegee, Alabama | Active | |
| Sigma | 1969 | Kansas State University College of Veterinary Medicine | Manhattan, Kansas | Active | |
| Tau | 1977 | Louisiana State University | Baton Rouge, Louisiana | Active | |
| Upsilon | 1979 | University of Florida College of Veterinary Medicine | Gainesville, Florida | Active | |
| Phi | 1979 | University of Tennessee | Knoxville, Tennessee | Active | |
| Chi | 1984 | Virginia–Maryland College of Veterinary Medicine | Blacksburg, Virginia | Active | |
| Psi | 1984 | North Carolina State University College of Veterinary Medicine | Raleigh, North Carolina | Active | |
| Alpha Alpha | 1987 | University of Wisconsin–Madison | Madison, Wisconsin | Active | |
| Alpha Gamma | 1987 | Oregon State University | Corvallis, Oregon | Active | |
| Omega | 1988 | Mississippi State University | Starkville, Mississippi | Active | |
| Alpha Beta | 1991 | Cummings School of Veterinary Medicine | Grafton, Massachusetts | Active | |
| Alpha Delta | 2006 | St. George's University | Saint George Parish, Grenada, West Indies | Active | |
| Alpha Epsilon | 2006 | Western University College of Veterinary Medicine | Pomona, California | Active | |
| Alpha Zeta | 2014 | Ross University School of Veterinary Medicine | Basseterre, Saint Kitts and Nevis, West Indies | Active | |
| Alpha Eta | 2017 | Midwestern University | Glendale, Arizona | Active | |
| Alpha Theta | 2018 | Lincoln Memorial University | Harrogate, Tennessee | Active | |