Theta Tau is the only co-ed professional engineering fraternity at Tennessee Tech, and is also the oldest fraternity on campus. Founded in 1904, Theta Tau is the nation's oldest fraternity for engineers with chapters at over 40 universities. Theta Tau is open to all engineering majors on campus as well as MIT. Our chapter participates in many activities around campus including intramurals, as well as community service events throughout middle Tennessee. We also visit other chapters throughout the year for various regional and national events.

Theta Tau is the first and foremost national co-ed professional engineering fraternity. Its purpose is to develop and maintain a high standard of professional interest among its members and to unite them in a strong bond of fraternal fellowship.

Lambda Beta is the oldest fraternity chapter at Tennessee Technological University. Our chapter stresses the importance of high professional ethics and exemplary practices. It stimulates professional activity and social compatibility; provides a framework for group participation on campus, community, engineering, and fraternity affairs; and promotes lasting friendships - a lifetime of brotherhood in an engineering environment.