Who We Are
Here for Nurses Who Drive Healthcare
Nursing is one of the world’s most meaningful and most demanding careers. The nurses who rise to that demand every day deserve recognition, a community of peers who push them to grow, and real support throughout their careers.
Sigma Nursing is a global community of nurses across every specialty, career stage, and corner of the world, built to give back to the nurses who give their all. Founded in 1922 by six nursing students at Indiana University, we’ve grown into more than 100,000 nurses in more than 100 countries. Our founders were guided by the Greek words for love, courage, and honor. We carry those concepts forward in Sigma today, in service of the nurses carrying healthcare forward.
Mission
Developing nurse leaders anywhere, to improve healthcare everywhere.
Vision
Connected, empowered nurse leaders, transforming global healthcare.
2025-2027 International Board of Directors
Sigma's elected leaders and chief executive officer are leading Sigma into the future.
Our Subsidiaries
Sigma Foundation for Nursing
Thanks to donors, the Sigma Foundation for Nursing funds research grants, leadership education grants, membership subsidies, and Sigma programs that connect and empower nurses around the world.
Sigma Building Corporation
The Building Corporation holds title to real and personal property for the benefit of Sigma. It is also responsible for managing and maintaining Sigma’s headquarters building and grounds.
Sigma Nurses by the Numbers
The Community Behind You
Why the laurel? Although we are now a membership organization and global community of nurse leaders, Sigma started in 1922 as an honor society. We retain the image of the congratulatory laurel as a reminder that excellence is core to our identity—and yours!
Sigma Nurses by the Numbers
The Community Behind You
Why the laurel? Although we are now a membership organization and global community of nurse leaders, Sigma started in 1922 as an honor society. We retain the image of the congratulatory laurel as a reminder that excellence is core to our identity—and yours!
100K+Members
Nurses, educators, and researchers at every career stage, in every specialty.
600+Chapters
Local communities of nurses who share your commitment.
100+Countries
Sigma members bring national perspectives to global understanding.
Latest News
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I was virtually inducted into Sigma Nursing. One of my proudest accomplishments.
— Naomi Gbonjumoluwa