About us

What is Sigma Marketplace?

Established in 2002, Sigma Marketplace (previously known as Nursing Knowledge International) is a wholly owned, 501(c)(3) not-for-profit subsidiary of Sigma Theta Tau International Honor Society of Nursing (Sigma). Headquartered in Indianapolis, Indiana, USA, we are committed to providing evidence-based knowledge solutions developed for nurses by nurses.

Our Mission

Provide knowledge, products, and services to develop and sustain nurse leaders anywhere to improve healthcare everywhere.

We Accomplish Our Mission By:

  • Delivering nursing knowledge designed to improve patient outcomes by enhancing the knowledge base of its nurse customers.
  • Providing products and services that serve the global community of nurses in its pursuit of healthcare knowledge, career advancement research, and continued development of the nursing profession.
  • Assisting the nursing profession to improve the health and education of patients and communities in which nurses pratice, lead, teach, and conduct research.
  • Establishing sales, marketing, and distribution partnerships with a wide range of nursing associations, publishers to expand the reach of Sigma's high-quality products and services.

Board of Directors

Nancy E. ThompsonNancy E. Thompson, MS, RN
Martie MooreMartie Moore, MAOM, RN, CPHQ
Marie-Louise LuikingMarie-Louise Luiking, MSc, BSc, RN, FFNMRCSI
Jacqueline FabricatoreJacqueline Fabricatore, BSN, RN, CPHON
Terry J. SiekTerry J. Siek, MSN, RN, NEA-BC
Cynthia D. SweeneyCynthia D. Sweeney, DNP, MSN, BSN, RN, CNOR, NEA-BC, FAAN
Gloria ChanGloria Chan, DNP, CRNA
Sigma Board Liaison