Triangle Fraternity

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Triangle Fraternity A national fraternity built for STEM students seeking brotherhood, leadership, and career development.

Founded by 16 Civil Engineering majors at the University of Illinois, Triangle Fraternity has grown to become the nation’s premier fraternity for men majoring in the fields of Engineering, Architecture, and the Sciences. Since Triangle’s founding in 1907, Triangle has grown to establish 38 chapters and colonies across the country while initiating over 26,000 men. Triangle brothers pride themselves on academic success, professional development, and morally rooted brotherhood.

Service. Brotherhood. Leadership. Wisconsin's newest member class is already embracing what it means to be a Triangle. A...
10/14/2026

Service. Brotherhood. Leadership.

Wisconsin's newest member class is already embracing what it means to be a Triangle. After helping clean up their stretch of highway near Madison, the class spent time getting to know their brothers through a paintball outing.

"I decided to join Triangle because this fraternity has everything I'm looking for. Triangle strikes the perfect balance between academics and social engagement, while also building a tight-knit brotherhood. As an engineering student, I appreciate being surrounded by people with similar goals, who also want to enjoy the college experience. I feel that I’ve really connected with the brothers and I’ve enjoyed spending time with them." – Neil Matthew, wis26

Congratulations to these 20 men on the start of their Triangle journey. We can't wait to see what they accomplish this semester.

Triangle Fraternity, Wisconsin Chapter

Triangle excellence on display. πŸ”ΊCongratulations to Brother Ryan Cummings ar12 for being recognized as the Illinois Sect...
10/12/2026

Triangle excellence on display. πŸ”Ί

Congratulations to Brother Ryan Cummings ar12 for being recognized as the Illinois Section American Society of Civil Engineers (ASCE) Young Civil Engineer of the Year. From leading major construction projects to mentoring future engineers and serving the profession through ASCE, Ryan's dedication to engineering and leadership continues to make a lasting impact. It was great to see Triangle brothers in attendance and celebrate this outstanding achievement together.

We're always proud to see Triangle alumni making an impact in their professions and communities. Congratulations, Ryan!

A new chapter is being written at NC State.Join fellow Triangle alumni and members of the NC State chapter for the Ralei...
10/09/2026

A new chapter is being written at NC State.

Join fellow Triangle alumni and members of the NC State chapter for the Raleigh Tour de Triangle on November 9. Meet brothers from the founding class and first recruitment class, reconnect with alumni, and learn more about Triangle's exciting growth in North Carolina.

πŸ“ North Carolina State University
πŸ“… November 9, 2026 | 6-8 p.m.
πŸ’΅ $25 per person

All Triangle brothers in the area are welcome, regardless of chapter. Guests are welcome.

πŸ”— Register and get the details here: tinyurl.com/RaleighTdT

Good weather, great golf, and even better company.Thank you to everyone who joined us for the annual Marquette Golf Outi...
10/08/2026

Good weather, great golf, and even better company.

Thank you to everyone who joined us for the annual Marquette Golf Outing on September 26. From lunch and time on the range to a full round of golf and dinner with brothers, it was a fantastic day of reconnecting and celebrating the brotherhood we share.

Until next year! β›³

The Orange County Tour de Triangle is just two weeks away! Join us on Thursday, October 22, for an evening of food, drin...
10/08/2026

The Orange County Tour de Triangle is just two weeks away! Join us on Thursday, October 22, for an evening of food, drinks, conversation, and Triangle brotherhood. We're especially excited that brothers from both UCI and UCLA will be joining us to share updates from their chapters and connect with alumni from across the region. πŸ”Ί

Register here: tinyurl.com/OrangeCountyTdT

πŸ”Ί Orange County Triangle brothers, join us!

Come out for Tour de Triangle: Orange County on Thursday, October 22, for an evening of food, drinks, and conversation at BJ’s Restaurant & Brewhouse in Irvine.

Whether you’re a longtime Orange County-area alum or new to the area, come reconnect with fellow brothers, hear the latest updates on UCI and UCLA, and enjoy a night of Triangle brotherhood!

πŸ“… October 22 | 6–8 p.m. PDT
πŸ“ BJ’s Restaurant & Brewhouse | Irvine, CA

All Triangle brothers in the area are welcome, regardless of chapter!

πŸ‘‰ Register here: tinyurl.com/OrangeCountyTdT

Great conversations, familiar faces, and a shared excitement for the future.Last weekend, Triangle alumni from across Co...
10/02/2026

Great conversations, familiar faces, and a shared excitement for the future.

Last weekend, Triangle alumni from across Connecticut and the surrounding region gathered in Wethersfield for our Connecticut Tour de Triangle event. Brothers had the opportunity to reconnect, meet new alumni, and hear updates on the upcoming return of the UConn Chapter in Spring 2027.

Thank you to everyone who joined us and helped make the afternoon such a success. Triangle is many chapters, but one brotherhood.

The strongest traditions are built on respect. As we recognize National Hazing Prevention Week, we're reminded that true...
09/23/2026

The strongest traditions are built on respect.

As we recognize National Hazing Prevention Week, we're reminded that true leadership means having the courage to set the standard, speak up, and create a brotherhood where every member feels valued and supported.

πŸ”Ί Be the leader. Prevent hazing.

HazingPrevention.Org

πŸ“ Kansas City, we're coming your way!Join fellow Triangle brothers for the Kansas City Tour de Triangle on Friday, Novem...
09/17/2026

πŸ“ Kansas City, we're coming your way!

Join fellow Triangle brothers for the Kansas City Tour de Triangle on Friday, November 6, 2026, at Strang Hall in Overland Park for a happy hour.

Reconnect with alumni, make new connections, and enjoy an early evening of Triangle brotherhood. Guests are welcome, so be sure to register yourself and anyone attending with you.

πŸ—“ November 6, 2026
πŸ•“ 4:00–6:00 P.M.
πŸ“ Strang Hall | Overland Park, KS

πŸ”— Register today: tinyurl.com/KansasCityTdT

A historic season for NC State. πŸ”Ί In just the past few weeks, the men of the NCSU Chapter have reached two incredible mi...
09/16/2026

A historic season for NC State. πŸ”Ί

In just the past few weeks, the men of the NCSU Chapter have reached two incredible milestones: the pinning of the Founding Father class and the welcoming of the chapter's first recruitment class.

The Founding Fathers' pinning ceremony officially marked the beginning of their lifelong journey in Triangle and celebrated the dedication, vision, and hard work that brought this chapter from an idea to a reality. Shortly after, the chapter welcomed 28 outstanding new members into its Beta Class, the first men to join through recruitment, each committing themselves to the values, brotherhood, and Code of Ethics that define Triangle.

Building a new chapter takes perseverance, leadership, and a belief in something bigger than yourself. As Chapter President Max Titley shared, "Seeing something you have poured so much energy into building reach such a major milestone is immensely rewarding." That sentiment reflects the efforts of every man who helped lay the foundation for Triangle at NC State University.

We're incredibly proud of what these members have accomplished and even more excited for what lies ahead. Congratulations to the NCSU Chapter as they continue building a legacy that will leave a lasting impact on NC State and beyond.

Today, we remember the 2,977 lives lost on September 11, 2001, and honor the courage, sacrifice, and resilience that eme...
09/11/2026

Today, we remember the 2,977 lives lost on September 11, 2001, and honor the courage, sacrifice, and resilience that emerged in the aftermath of that day.

We also remember our brother, Alok Kumar Mehta csu98.

Brother Mehta was working at Cantor Fitzgerald in the World Trade Center when he was among those who lost their lives in the attacks. Though his time with us was far too short, his legacy continues through the scholarships that bear his name and the countless brothers inspired by his pursuit of excellence.

Twenty-five years later, we continue to honor his memory and reflect on all those who were taken from their families, friends, and communities that day.

We remember. We honor. We will never forget.

Address

120 S Center Street
Plainfield, IN
46168

Opening Hours

Monday 8:30am - 5pm
Tuesday 8:30am - 5pm
Wednesday 8:30am - 5pm
Thursday 8:30am - 5pm
Friday 8:30am - 5pm

Telephone

+13178379640

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