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.
Sigma's vision is to be the global organization of choice for nursing. Learn more about Sigma.
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.
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)
Call center staff are available to assist you Monday-Friday, 8:00 a.m. - 5:00 p.m. Eastern Time.
Psi Iota Mission and Vision
The mission of the University of St. Thomas Sigma Theta Tau International - Psi Iota Chapter is to support learning, knowledge, and professional development of nurses committed to making a difference in health worldwide.
The vision of the University of St. Thomas Sigma Theta Tau International - Psi Iota Chapter is to create a global community of nurses who lead in using knowledge, scholarship, service and learning to improve the health of the world’s people.