About Us

Sigma Mission

The mission of Sigma Theta Tau International Honor Society of Nursing (Sigma) is advancing world health and celebrating nursing excellence in scholarship, leadership, and service. 


Society Vision
Sigma's vision is to be the global organization of choice for nursing. Learn more about Sigma.

Chapter Region

Sigma's chapters are separated into six global regions. The North America region is further divided into 15 geographic regions. To learn more about the organization's regions, visit the Sigma website.

Headquarters Information
Chapter-specific questions should be directed to the chapter's contact person listed in the chapter directory. If you have questions about your membership, renewals or benefits, please contact Sigma headquarters. 

550 W. North Street
Indianapolis, IN 46202 USA

888.634.7575 (US/Canada toll-free)
+1.317.634.8171 (International)

Call center staff are available to assist you Monday-Friday, 8:00 a.m. - 5:00 p.m. Eastern Time.

About Zeta Mu Chapter-At-Large

Our Mission

Committed to recognizing superior achievement in nursing and leadership qualities, fostering high professional standards, nursing research and creative work and strengthening a commitment to the ideals and purposes of the profession. 

The Honor Society of Nursing, Sigma Theta Tau International

triangleWas founded in 1922 by six nurses at the Indiana University Training School for Nurses, now the Indiana University School of Nursing. Over the years, numerous chapters have formed across the United States and around the world. The founders chose the name from the Greek words Storgé, Tharsos and Timé meaning "Love," "Courage" and "Honor." 

Region MapZeta Mu Chapter-At-Large

In the late 1970's in San Diego, there was interest in establishing Sigma Theta Tau International chapters at the University of San Diego, Point Loma Nazarene University and at San Diego State University. Eventually, USD and PLNU would join to form the Zeta Mu Chapter-at-Large and SDSU would form the Gamma Gamma chapter.