Kappa Rho chapter was founded at University of North Carolina at Charlotte in Huntersville, North Carolina on November 15, 2014.
Theta Chi chapter was founded at Lehigh University in Bethlehem, Pennsylvania on February 11, 1989. The chapter closed on March 6, 2018.
Theta Iota chapter was founded at Baylor University in Waco, Texas on April 27, 1985.
Theta Kappa chapter was founded at University of Memphis in Memphis, Tennessee on April 27, 1985. The chapter closed on February 29, 1996.
Theta Lambda chapter was founded at Clemson University in Clemson, South Carolina on October 19, 1985.
Theta Mu chapter was founded at Eastern Montana College (now Montana State University Billings) in Billings, Montana on November 23, 1985. The chapter closed on February 12, 1994.
Theta Nu chapter was founded at Santa Clara University in Santa Clara, California on February 8, 1986. The chapter closed on April 6, 1995.
Theta Omega chapter was founded at Marquette University in Milwaukee, Wisconsin on April 15, 1989.
Theta Omicron chapter was founded at Massachusetts Institute of Technology in Boston, Massachusetts on April 26, 1986.
Theta Phi chapter was founded at Colgate University in Hamilton, New York on March 12, 1988. The chapter closed on February 21, 1997.
Theta Pi chapter was founded at University of California, Davis in Davis, California on June 7, 1986.
Theta Psi chapter was founded at Columbia University in New York, New York on April 1, 1989.
Theta Rho chapter was founded at James Madison University in Harrisonburg, Virginia on March 28, 1987. The chapter closed on April 2, 2000.
Theta Sigma chapter was founded at University of North Florida in Jacksonville, Florida on May 2, 1987.
Theta Tau chapter was founded at Rutgers University in New Brunswick, New Jersey on February 20, 1988. The chapter closed on July 31, 2013 and was re-opened on May 4, 2019.
Theta Upsilon chapter was founded at University of South Carolina in Columbia, South Carolina on March 26, 1988.
Theta Xi chapter was founded at California State University, Northridge in Northridge, California on March 8, 1986. The chapter closed on October 31, 1991.
Upsilon chapter was founded at Millikin University in Decatur, Illinois on May 9, 1913.
Xi chapter was founded at University of Nebraska - Lincoln in Lincoln, Nebraska on November 28, 1907.
Zeta chapter was founded at New England Conservatory in Boston, Massachusetts on December 15, 1895. The chapter closed on June 1, 1950.
