Membership in Sigma Xi is professionally rewarding and offers a chance to participate in ongoing programs and activities at the local and Society levels. Active, dues-paying members also have access to valuable benefits, both personal and professional.

The Society's interdisciplinary outlook finds vivid expression in American Scientist, the award-winning illustrated magazine, which since 1913 has been dedicated to communicating research developments across disciplinary lines.

Through Sigma Xi chapters, members enjoy opportunities to network with research colleagues and contribute to programs that impact local communities and institutions. Increasingly, Sigma Xi members are taking advantage of exclusive services and benefits like Science in the News, a free daily e-mail bulletin featuring top science and technology stories as reported by major media outlets, and the E-mail Forwarding option that allows members to request a permanent Sigma Xi e-mail address. And while the Grants-in-Aid of Research Program is open to all undergraduate and graduate students, certain funds are restricted for use by individuals who are nominated by Sigma Xi members or who are members themselves. Sigma Xi members are eligible for discounts on subscriptions to Nature and Annual Reviews as well as a 10 percent discount on all Sigma Xi publications and merchandise.

Many members have observed that the most valuable benefits of Sigma Xi are the intangibles, especially support of Sigma Xi programs that address ethics, education, public understanding of science, and the health of the research enterprise. Through annual forums, partnerships, programs and publications, Sigma Xi members and chapters support the Society's mission to "encourage and enhance worldwide appreciation and support of original investigation in science and technology and to foster worldwide a creative and dynamic interaction among science, technology and society."