Purdue Chapter ofTriangle Fraternity
Founded in 1909 as the second chapter of Triangle, the Purdue Chapter has been a leading fraternity on the Purdue University campus for more than 100 Years! Our Chapter House features a prime location on the Purdue West Lafayette campus at 103 N University Street with short walking distances to most classes – faster than from most university dorms!
The Chapter House was built in 1963, with an addition added in 1968, with major renovations during the 1990s. Recently the House underwent significant updates for both exterior and interior spaces with new living room furniture just installed during summer 2026. The House has a live-in capacity of 72 Brothers and features a private parking lot.
For STEM majors at Purdue, Triangle Fraternity provides Brothers the opportunity to build lifelong friendships, access to study groups with fellow STEM majors, and gain professional network support and career mentoring from our alumni.
Vision / Mission
Our Vision - To forge a Brotherhood of the highest moral character and integrity, bound by STEM education and shared values, who develop lifelong friendships, achieve professional advancements, and make our communities better.
Our Mission - Build better men by providing a top-tier Fraternity on the Purdue Campus that will:
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Forge a lifetime of memories and friendships through well-crafted social, educational, and athletic programs.
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Promote career development and open limitless opportunities in STEM through academic support and a world-class network of engaged Alumni.
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Inspire Brothers to think beyond themselves through philanthropic programs and their dedication to living our Triangle shared values.
Building Better Men to Build a Better World
There is no other men’s STEM fraternity experience. If you are looking for a STEM group to support your academic goals and graduation, provide leadership and social opportunities, and a connection with thousands of prominent alumni in the fields of engineering, architecture, and science, talk to Triangle. Our members understand the challenges of a technical degree path and can be both a support system and valuable network on the path to a successful technical career
Code of Ethics
As a member of Triangle, I recognize my obligation to:
• Observe the precepts of the Fraternity as set forth in the Ritual
• Accept cheerfully my full share of any task, however menial, involved in maintaining a chapter home
• Preserve and promote the chosen ideals of my Fraternity
• Pay all personal bills promptly, and always live within my means
• Help create in my chapter home an environment in which enduring friendships may be formed
• Maintain a creditable scholastic record
• Promote the welfare of my profession
• Maintain self-respect by proper conduct at all times
• Uphold faithfully the traditions and program of my Alma Mater
• Pay the price of success in honest effort
Triangle is the only men's STEM (Science, Technology, Engineering, Math) college fraternity experience, open exclusively to engineering , science, and architecture students. We provide a social experience with a focus on academic success and professional career preparation.
Triangle Fraternity was founded in 1907 by 16 civil engineering juniors at the University of Illinois who desired to extend their friendship, not only through college, but also for life. These Founders based their organization on the principles of honor, friendship, character, brotherhood, and courage. From the beginning, Triangle is a fraternity where men of similar majors could socialize, support each other’s academic pursuits and better prepare for successful careers.
Since our founding, we have expanded nationwide and broadened our membership to include men pursuing STEM and Architecture degrees – essentially becoming a STEM fraternity experience before the acronym was even created. We remain dedicated to supporting our members socially, academically and professionally. Today, we have more than 30,000 initiated Brothers with 34 Active Chapters in 25 states.
Triangle Fraternity - National Organization
Leadership Development
Triangle Fraternity is a values-based membership development organization that focuses on building brotherhood through character enhancement, leadership development, academic achievement, commitment to service, and lifelong friendships.
Click the following link for additional information on the National Organization of Triangle Fraternity