Triangle Fraternity is both a social and a professional fraternity, limiting its membership to students majoring in engineering, architecture, and the sciences. It is the only member of the North-American Interfraternity Conference to limit its membership to these majors.

Triangle Fraternity began to organize at the University of Illinois in the fall of 1906 and was incorporated by the state of Illinois on April 15, 1907, which is celebrated each year as Founders' Day.

There are currently 28 chapters and 4 colonies of Triangle Fraternity in the U.S., mostly in the Midwest. The headquarters is currently located in Plainfield, Indiana.

Notable Triangle Alumni include Challenger astronaut Ellison Onizuka, James Geringer, former governor of the U.S. state of Wyoming, Jay Hammond, former governor of the U.S. state of Alaska, Steven L. Miller, former CEO of Shell Oil Company, Charles H. Bowman, former chairman and CEO of BP Americas, Stanton R. Cook, former chairman, president and CEO of the Tribune Company, Edward McCracken, former CEO of Silicon Graphics, and Fred R. Kappel, former chairman of the board of AT&T.

Chapter List

Date chapter installed in parentheses

• Colorado State University (May 27, 1967)
• Illinois Institute of Technology (May 26, 1923)
• Iowa State University (April 25, 1964)
• Kansas State University (September 7, 1964)
• Marquette University (April 24, 1937)
• Michigan State University (January 8, 1955)
• Michigan Technological University (April 16, 1988)
• Milwaukee School of Engineering (January 23, 1965)
• Northern Illinois University (October 9, 1993)
• Pennsylvania State University (March 3, 1928)
• Purdue University (April 8, 1909)
• Rochester Institute of Technology (February 4, 1967)
• Rose-Hulman Institute of Technology (May 4, 1968)
• South Dakota School of Mines and Technology (September 27, 1930)
• Texas A&M University (colony since 2002)
• The Ohio State University (February 2, 1911)
• Tri-State University (April 15, 1989)
• University of California, Los Angeles (December 7, 1957)
• University of Cincinnati (August 6, 1921)
• University of Connecticut (recolonizing chapter)(March 27, 1982)
• University of Illinois, Champaign (April 15, 1907)
• University of Kansas (January 8, 1927)
• University of Kentucky (colony since 2003)
• University of Louisville (March 22, 1941)
• University of Maryland Baltimore County (colony since 2003)
• University of Minnesota, Minneapolis (October 29, 1922)
• University of Missouri, Rolla (December 10, 1927)
• University of Nebraska, Lincoln (March 16, 1963)
• University of Oklahoma (November 18, 1979)
• University of Toledo (May 22, 1971)
• University of Wisconsin-Madison (February 7, 1913)
• University of Wisconsin-Milwaukee (April 11, 1970)

External links

• Triangle Fraternity - The Fraternity of Engineers, Architects, and Scientists
• Triangle Fraternity Chapter at The University of Wisconsin in Milwaukee
• Triangle Fraternity Chapter at Purdue University