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.

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

Individuals can request nomination to membership through a Sigma Xi chapter or through the Sigma Xi Committee on Qualifications and Membership.

To request nomination through a 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, call the administrative office at 919-549-4691, 800-243-6534 or consult the chapter listing.

Nomination through the Committee on Qualifications and Membership should be submitted to the administrative offices using this online nomination form. The Committee can act as first and second nonimator or if a first nominator is included on the form, a member of the Committee can act as second nominator.


Promote to Full Member

An Associate Member who meets the requirements for Full Membership can be promoted. Please see the Qualifications for Membership for more information.

Full Members enjoy participating in ways that are unavailable to Associate Members. Full Member privileges include:

Able to nominate others to the Society
Eligible to vote at Sigma Xi's annual Assembly of Delegates
Voting rights on Sigma Xi committees
Qualified to join the Board of Directors
Promotion is conferred by your chapter or by the Committee on Qualifications and Membership. Choose whichever is most convenient.
Promotion by a chapter (Paper only)
Please fill out the nomination form (Word or PDF) and present it to any officer of the selected chapter.

To locate a chapter officer, call Sigma Xi at 919-549-4691, 800-243-6534, e-mail membership@sigmaxi.org or consult the online chapter listing.

Promotion by the Committee on Qualifications and Membership (Paper or online)
Please use the online nomination form.

Alternatively, fill out the nomination form (Word or PDF) and mail it to Membership, Sigma Xi, The Scientific Research Society, P.O. Box 13975, Research Triangle Park, NC 27709, USA, or fax to 919-549-0090.

The Committee will act as first and second nonimator or if a first nominator is included on the form, the Committee can act as second nominator.

Members can update their address and chapter affiliation information and/or to request a change in membership status (from associate member to full member). Because you are the only person who can access your membership record, you will be required to enter your membership ID and last name. The ID number appears on your membership card and on the mailing label attached to your issue of American Scientist.

If you are changing your chapter affiliation and need to see the chapters in your area please see this Chapter List.