Sigma Chi is a brotherhood with roots in the collegiate experience that engenders a lifelong commitment to strive to achieve true friendship, equal justice and the fulfillment of learning as part of our overall responsibilities to the broader communities in which we live.

We achieve these ideals through the practice of character qualities embodied in our Ritual, and continuously reaffirm our purpose through the observance of Sigma Chi’s Governing Laws and through adherence to the decisions of our legislative assemblies, which empower and direct our leadership. 

In addition to its 233 undergraduate chapters and 126 alumni chapters, Sigma Chi is comprised of four operational entities: the Sigma Chi Fraternity, the Sigma Chi Foundation, the Risk Management Foundation and Constantine Capital Inc.

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The Sigma Chi Chapter at Iowa State is known as the Sigma Omicron Associate Chapter.   We returned to Iowa State in 2023 after a 5 year break, but previously we had been at ISU since 1916.   Currently, we are a very optimistic and hardworking group of brothers that also know how to have a good time and make the college experience the best that it can be.