About Us

Welcome to Sigma Pi Fraternity at the University of Southern Indiana. Welcome to the Theta-Psi Chapter of Sigma Pi at the University of Southern Indiana. We are a brotherhood built on leadership, service, and the creation of lifelong connections that extend far beyond college. Since our founding, our chapter has been dedicated to developing men who strive for excellence in the classroom, on campus, and in their communities. At Theta-Psi, we believe that the best college experience is one where you are surrounded by people who challenge you to grow while supporting you every step of the way. Our brothers are involved across campus, take on leadership roles, give back through service, and create memories that last a lifetime. From philanthropic events and campus involvement to brotherhood events and everyday moments together, we are committed to making an impact while enjoying the journey. Our commitment to excellence has helped Theta-Psi become one of the top-performing chapters within Sigma Pi, earning recognition through awards such as the Grand Council Award, Grand Chapter Award, and the William J. Cutbirth Jr. Philanthropy Award. These accomplishments reflect the dedication, teamwork, and passion our brothers bring to everything we do. When you join Theta-Psi, you are not just joining a fraternity—you are joining a family that will support you throughout your college years and beyond. We are proud of the brotherhood we have built at the University of Southern Indiana, and we invite you to discover why Sigma Pi is a place where you can grow, lead, and create lifelong memories.