Becoming a Member

Membership in Sigma Xi is by nomination and is conferred in one of two ways. Full Membership is conferred upon any individual who has shown noteworthy achievement as an original investigator in a field of pure or applied science or engineering. Associate Membership is available to any individual who has, through initial research achievement in a field of pure or applied science, shown an aptitude for research. Please see the Qualifications for Membership for more information. Students and non-students follow the same review process.

Individuals who were previously elected as an Associate Member and who now meet the requirements for Full Membership can apply for Promotion to Full Membership.

Individuals may request nomination to membership through a Sigma Xi chapter or through the Sigma Xi Committee on Qualifications and Membership. Please first consult the chapter listing to determine if an active chapter exists in your area or institution, and contact the chapter officer via e-mail. If you do not receive a prompt reply, please contact chapters@sigmaxi.org for assistance. There is also an at-large membership option if you do not have a nearby chapter or if you do not wish to affiliate with a local chapter. You may apply directly to the Committee on Qualifications and Membership to become an at-large member. You may also choose to apply to the Committee even if you plan to affiliate with a chapter now or at a later time.

Please DO NOT apply to both a Chapter and the Committee. This will only delay the processing of your nomination.

To request nomination through a local Sigma Xi CHAPTER:

Please fill out either this Word or PDF nomination form and present it to any officer of the selected chapter. To locate a chapter officer, consult the chapter listing or call the administrative office at 919-549-4691 or 800-243-6534.

To request nomination through the COMMITTEE on Qualifications and Membership:

Submit this online nomination form. Or you may mail this Word or PDF nomination form to Sigma Xi, P.O. Box 13975, Research Triangle Park, NC 27708 or e-mail it to membership@sigmaxi.org. This form may be submitted with one or two nominators. If submitted with one nominator, the Committee on Qualifications and Membership can act as the second nominator. The Committee can also act as both the first and second nominator for individuals who are not familiar with a Full Member of Sigma Xi. Results of the review will be sent via e-mail in approximately 6 to 8 weeks.