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Sigma is a global community of nurses from 100+ countries who, across borders and cultures, share the same commitment: bringing their best to nursing, wherever it leads them.
Official United Nations Partner Organization
Sigma is a global community of nurses from 100+ countries who, across borders and cultures, share the same commitment: bringing their best to nursing, wherever it leads them.
1M+ Inducted Members
100+Countries Represented
600+Chapters Worldwide
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Wherever you practice, whatever your specialty, you’ll find peers ready to support your growth, broaden your perspective, and remind you what’s possible when nurses stand together.
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Member Stories
Inspirational / North America
Trust, training, and timing
Published on 15 July 2026
By Nursing Centered Editorial Staff
Leadership
Growing a Leader
Published on 26 May 2026
By Nursing Centered Editorial Staff
Leadership / Global - Europe
Lead together, right where you are
Published on 8 May 2026
By Liz Westcott
Global Impact / North America
When the planet becomes the patient
Published on 16 April 2026
By Nursing Centered Editorial Staff