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WELCOME TO TRIANGLE

Triangle is the only men's STEM fraternity experience, open to engineers, architects and scientists. We provide a social experience with a focus on academic success and professional preparation.
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Initially, I joined as a way to make new friends and find people with similar interests. As I became a part of the brotherhood, I found that I could work on more professional skills in terms of working different positions in the organization. All of the positions I have held have taught me things that I can use later in life.
Jeremy Westrich

University of Wisconsin at Milwaukee

Triangle taught me how to lead, through professional development and executive position opportunities. The work I’ve put into this organization has reciprocated tenfold by providing me with the network, tools, and skills I need to further my career. I am certain that joining has been the single greatest decision in my life.
Kurt Paul

Cal Poly - Pomona

Five years ago, I wanted nothing to do with joining a Fraternity.  Here I am now, 5 years later, in Triangle, serving as a founder and President of a new colony. Triangle has a place in my heart now, and it will characterize my time in college.
Tyler Blankenship

Rose-Hulman Institute of Technology

Being in Triangle I’m surrounded by guys who want to make the most of their college experience. They’re guys who help each other with classwork, guys I go to football games with, and guys I enjoy being around. Joining Triangle Fraternity was the best decision I could have ever made.
Nathan Nash

Colorado State University

Total Initiates

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Current Active Members

Active Colonies/Interest Groups

Living Alumni

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COVID Response Resources

In the midst of this crisis, numerous resources have been provided in an attempt to respond to the many questions groups are asking.  From what campuses may look like in Fall to how to recruit during the summer, the ideas and links below are provided to help chapters...

Triangle COVID-19/Coronavirus Statement

Brothers, Alumni, Volunteers & Friends: Triangle Fraternity’s National Council and staff is committed to promoting the health and safety of its members.  As COVID-19 continues to spread and impact our partner institutions, Triangle is working to support our...

A Message from President Joe Cerrato os05

Stand up against injustice, racism, and inequity! Our heartfelt condolences go out to the families of George Floyd, Ahmaud Arbery, Breonna Taylor, and many other Black lives lost to hateful acts, injustice, and inequity. I know this senseless loss of life has impacted...

HQ Update May 25, 2020

The Triangle National Council has been deliberating on a number of items in the last month related to the pandemic, premature closure of campuses and with a focus on chapter success in the Fall. As a result, here are several announcements. Virtual Initiations National...

HQ Update – April 9, 2020

UPDATES FROM AROUND TRIANGLE Virtual National Founders Day At 3 PM Eastern time on Saturday, April 18, we will be hosting an online Founders Day event.  All chapters are invited to send in a short (20-seconds max.) video to say "Happy Birthday" as we celebrate our...

National Headquarters Address

120 S. Center Street
Plainfield, IN 46168
P | (317) 837-9640
F | (317) 837-9642

Office Hours

Monday through Friday
9 a.m. to 5 p.m. (Eastern)