Sigma Chi (ΣΧ) is one of the largest North American social fraternities. The fraternity has 244 active undergraduate chapters and 152 alumni chapters in the United States and Canada and has initiated over 380,000 members. It was founded on June 28, 1855, at Miami University in Oxford, Ohio, by members who split from the Delta Kappa Epsilon fraternity.
Sigma Chi is divided into seven operational entities: the Sigma Chi Fraternity, the Sigma Chi Foundation, the Sigma Chi Canadian Foundation, the Risk Management Foundation, Constantine Capital Inc., the Blue and Gold Travel Services, and the newly organized Sigma Chi Leadership Institute.