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View WOCC's top competitors like AACN (American Association of Critical-Care Nurses), ACNP, and Academy of Medical-Surgical Nurses (AMSN) & Medical-Surgical Nursing Certification Board (MSNCB).

American Nurses Association
We harness The Power of Nurses® to champion the profession and drive transformation in healthcare. How has a nurse impacted your life?
Silver Spring, Maryland, US
Non profit
$8.6M Revenue
http://www.nursingworld.org
2.7K Employees
AACN is the largest specialty nursing organization in the world, representing the interests of more than 500,000 nurses who are charged with the responsibility of caring for acutely and critically ill patients. The association is dedicated to providing our members with the knowledge and resources necessary to provide optimal care to critically ill patients. Visit our careers page: https://aacn.me/3Wqgcyq AACN Social Media Community Guidelines: https://www.aacn.org/guidelines
Aliso Viejo, California, US
Non profit
$28.3M Revenue
http://www.aacn.org
997 Employees
Sigma Theta Tau International Honor Society of Nursing (Sigma) – In 1922 six nurses founded Sigma at the Indiana University Training School for Nurses, now the Indiana University School of Nursing, in Indianapolis, Indiana, USA. The founders chose the name from the Greek words Storgé, Tharsos, and Timé meaning "love," "courage," and "honor." Sigma became incorporated in 1985 as Sigma Theta Tau International Inc., a nonprofit organization with a 501(c)(3) tax status in the United States. Our Mission: Developing nurse leaders anywhere to improve healthcare everywhere Our Vision: Connected, empowered nurse leaders transforming global healthcare
Indianapolis, Indiana, US
Non profit
$15.9M Revenue
http://www.sigmanursing.org
1.3K Employees
G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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