|Founded||April 15, 1907
University of Illinois at Urbana-Champaign
|Emphasis||Engineers, Architects, and Scientists|
|Mission statement||The purpose of Triangle shall be to maintain a fraternity of engineers, architects and scientists. It shall carry out its purpose by establishing chapters that develop balanced men who cultivate high moral character, foster lifelong friendships, and live their lives with integrity.|
|Motto||Latin: Veritas Omnia Vincit
(Truth Conquers All)
|Colors||old rose (RGB 0x990033) and gray (RGB 0x999999) |
|Philanthropy||Habitat for Humanity International|
26,000+  lifetime
|Headquarters||120 South Center Street
Triangle Fraternity is a social fraternity, limiting its recruitment of members to male students majoring in engineering, architecture, and the physical, mathematical, biological, and computer sciences. It is the only member of the North-American Interfraternity Conference to limit its membership recruitment to these majors.
Triangle Fraternity organized at the University of Illinois at Urbana-Champaign in the fall of 1906 and was incorporated by the state of Illinois on 15 April 1907, which is celebrated each year as Founders' Day.
There are currently thirty-five chapters and eight colonies of Triangle Fraternity active in the U.S. The headquarters is located in Plainfield, Indiana in a historic building built as a Carnegie library in 1912.
Because Triangle's focus is on men of mostly similar fields of study, it is thought that members are more likely to be able to help each other succeed in their college studies. This focus also helps with professional networking later in life, particularly as there are alumni groups scattered throughout the world.
Triangle's beginnings came from the desire of some congenial college friends to extend their friendship, not only through college, but also for life. In the fall of 1906, sixteen Civil Engineering juniors at the University of Illinois began the association that became Triangle Fraternity. These founders based their organization on the principles of honor, friendship, character, brotherhood, courage, and ideals. They quickly developed plans and, on 15 April 1907, incorporated Triangle in the State of Illinois. The date of incorporation has been designated as Founders' Day, and Triangle appropriately celebrates it every year at each chapter.
- Colors: Old Rose and Grey
- Coat of Arms: The crest consists of a rising sun beneath a Triangle T. Beneath is an esquire helmet in profile. At the center of the Coat of Arms is the fraternity's shield and a ribbon containing the organization's motto "Veritas Omnia Vincit" (Truth Conquers All). Surrounding the shield is a mantling.
- Flower: White Chrysanthemum
- Flag: The Coat of Arms on a Yellow T with Gray field.
Code of Ethics
Triangle Fraternity was founded on high ethical and moral ideals, and expects the men of the fraternity to follow a set Code of Ethics, which is as follows:
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 my 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.
The following men are all notable alumni of Triangle Fraternity:
- Fred Bechly ill44, co-developer of the RCA Corporation Tri-color Kinescope Monitor
- Norris R "Buck" Crump pur27, former chairman of Canadian Pacific Railway
- Jim Geringer ks64, former governor of the U.S. state of Wyoming
- Kevin Granata os83, biomechanics researcher and professor, killed in the Virginia Tech Massacre
- Jay Hammond ps41, former governor of the U.S. state of Alaska
- Gerald Jakubowski tol70, former president of Rose-Hulman Institute of Technology
- Frank McCabe marq50, gold medal winner at 1952 Olympics as member of US basketball team
- Steven L. Miller ill64, former president and C.E.O. of Shell Oil Company
- Michael Morhaime ucla85, president and co-founder of Blizzard Entertainment
- Ellison Onizuka colo69, Space Shuttle Discovery and Space Shuttle Challenger astronaut
- Dean M. Peterson sdm54, Instamatic and point-and-shoot camera inventor
- Edward W. Wedbush cin50, president and co-founder of Wedbush Securities
- Gerald "Gerry" Rauenhorst marq51, founder of The Opus Group®, a family of commercial real estate development, construction and design companies headquartered in Minneapolis
- "Graphics Library". Triangle Fraternity. Retrieved 2015-05-10.
- "Triangle Fraternity Mourns the Loss of Br. Richard H. Sudheimer minn52". Triangle Fraternity. Retrieved 2015-05-10.
- "Triangle Headquarters". Triangle Fraternity. Retrieved 2015-05-10.
- "Distinguished Alumni". Triangle Fraternity. Retrieved 2015-05-10.