Theta Tau was founded in 1904 as the "Society of Hammer and Tongs" at the University of Minnesota by Erick J. Schrader, Elwin L. Vinal, William M. Lewis, and Issac B. Hanks. It is the nation's oldest and foremost professional engineering fraternity, formed with the intent of developing and maintaining a high standard of professional interest among its members, and to unite them in a strong bond of fraternal fellowship.


Theta Tau came to Boston University for a similar reason: to provide an inclusive group for engineering students, regardless of major, background, or gender. From the formation of an interest group in the fall of 2013 to our chapter installation on April 9, 2016, Theta Tau at Boston University has grown and developed with each new pledge class. Each new member shapes the Psi Delta chapter with their character and drive, and we are excited to see what the future brings as we continue to expand and promote excellence in our members. 
COLORS: Dark red, Gold

SYMBOLS: Hammer and Tongs, Jacqueminot (Dark red rose), Garnet

OPEN MOTTO: "Whatsoever thy hand findeth to do, do it with thy might..." Eccelsiastes 9:10

  1. 10
  2. 35,000+
    Members Since Founding
  3. 52
    Brothers - Psi Delta
  4. 66
    Active Chapters




Service, the first pillar chair noted by Theta Tau, provides a foundation for the fraternity's impact on local and national communities alike. Theta Tau at Boston University strives to interact with the greater Boston community to promote this fundamental goal. Through collaboration with remarkable organizations, such as the American Cancer Society and Greater Boston Food Bank, our brothers are able to gain a new life perspective and help those in need. We believe it is important to not only serve our own interests but also to analyze and assist with sociocultural solutions to the causes of these organizations. Engaging in service enables the fraternity to embody the archetype of the Societal Engineer through an understanding that life as an engineer extends beyond what is learned on campus. 

--Bonnie Walton, Epsilon Class
Professionalism is the outlet through which our brothers present themselves to the world.  Our alumni network has a wide variety of pursuits and spans the country. The brothers of the Psi Delta chapter of Theta Tau work passionately to achieve their career aspirations through extensive professional workshops and networking.

--Nicole Enos, Epsilon Class
Our brotherhood goals are to forge lifelong bonds of fraternal friendship, a journey that develops and delivers a network of lasting personal and professional relationships. We foster a safe, inviting, and social environment in which our members become lifelong friends. As the brotherhood chair, my responsibility is to plan events and activities that give our brothers a chance to bond and get to know one another better. We have events for everyone, from date parties and formals, to bowling and board game nights, to intramural sports and potluck dinners. Additionally, we have a retreat every semester where the whole chapter comes together to hang out, play some games, and talk about how we can be a better fraternity. Beyond just our chapter, the brotherhood extends to all other chapters of Theta Tau across the country. We attend national and regional conventions, host brothers from other chapters, and visit chapters of Theta Tau at other schools. Being a member of Theta Tau opens up a family that extends across the country, and whose bonds will last a lifetime.

--Brandon Webster, Beta Class