Triangle Fraternity

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.

Welcome, summer. ☀️Whether you're working, interning, traveling, or relaxing, we hope it's a season full of great memori...
06/22/2026

Welcome, summer. ☀️

Whether you're working, interning, traveling, or relaxing, we hope it's a season full of great memories.

📸Triangle Fraternity - Iowa State

“I decided to join Triangle because I was looking for a genuine sense of brotherhood that I could rely on. I immediately...
06/18/2026

“I decided to join Triangle because I was looking for a genuine sense of brotherhood that I could rely on. I immediately felt welcomed and saw how much they genuinely support one another, celebrate each other’s successes, and help each other through challenges. I wanted to be part of a community that values strong friendships, personal growth, and shared experiences, not just during college but for life.”

That’s what inspired John James uci26, to join Triangle at UC Irvine.

As the newest members of our UC Irvine chapter begin their Triangle journey, they’re joining a brotherhood built on friendship, leadership, and supporting one another through the college experience and beyond.

Welcome to Triangle. We can’t wait to see what you’ll accomplish. 🔺

🚨 Don’t miss your chance to be part of Triangle history! Join us at National Convention in Aurora, Colorado, where broth...
06/11/2026

🚨 Don’t miss your chance to be part of Triangle history!

Join us at National Convention in Aurora, Colorado, where brothers from across the country will come together to learn, connect, and celebrate all things Triangle. This year offers a particularly unique opportunity as we witness the installation of the Colorado Chapter and welcome its newest members through initiation.

Whether you’re a collegian or alumnus, Convention is your chance to gain new ideas, strengthen lifelong connections, and experience firsthand the growth of our Fraternity. You won’t want to miss this memorable milestone! 🔺⛰️

Register today and be part of the next chapter of Triangle’s story: https://www.triangle.org/events-programs/nationalconvention/

June is Men's Health Month, a time to raise awareness, encourage conversations, and remind one another that seeking supp...
06/08/2026

June is Men's Health Month, a time to raise awareness, encourage conversations, and remind one another that seeking support is a sign of strength.

“Men’s mental health is so important to us because we lost a brother to his fight in 2022. We want to make sure that never happens again, which is why we put such a strong focus on talking about it, spreading awareness, and supporting mental health initiatives.”
— Zach Wood is25, Health & Wellness Chair

To all our brothers: check in on your friends, reach out when you need support, and remember that you don't have to face challenges alone.

📸Triangle Fraternity - Iowa State

This , we're reflecting on the natural spaces that bring our brothers together and inspire curiosity, exploration, and ...
06/05/2026

This , we're reflecting on the natural spaces that bring our brothers together and inspire curiosity, exploration, and appreciation for the environment.

📸Rose Tech

A community for everyone 🤝 Celebrating love, identity, and the importance of creating a community where every individual...
06/04/2026

A community for everyone 🤝

Celebrating love, identity, and the importance of creating a community where every individual can show up as their full self. Proud to support our LGBTQ+ members, alumni, and friends. Happy Pride Month from Triangle Fraternity!

Have you read the Spring edition of the Triangle Building & Housing Corporation newsletter yet? 🏠This edition highlights...
05/31/2026

Have you read the Spring edition of the Triangle Building & Housing Corporation newsletter yet? 🏠

This edition highlights the impact of long-term investment, alumni support, and strategic planning across Triangle housing — including Michigan State’s major window renovation project, Michigan's return to the TBHC portfolio, housing innovation efforts, and the scale of TBHC’s nationwide impact by the numbers.

Read the full newsletter to learn more about the work shaping the future of Triangle housing and chapter facilities. 🔺

🔗https://issuu.com/trianglefraternity/docs/tbhc_2026_spring_newsletter

The Triangle Portal is your central hub for chapter tools, updates, and resources. We encourage all members—students, al...
05/29/2026

The Triangle Portal is your central hub for chapter tools, updates, and resources. We encourage all members—students, alumni, and volunteers—to log in regularly and make it part of your routine. 💻

From chapter communications to key forms and updates, the portal is designed to help you stay connected and informed. If you haven’t explored it recently, now is a great time to take a look: https://chapterspot.triangle.org

📣 Registration for 2026 National Convention is still open! Join brothers from across the country in Denver, Colorado fro...
05/26/2026

📣 Registration for 2026 National Convention is still open! Join brothers from across the country in Denver, Colorado from July 30 – August 2 for:
🔺 Leadership & legislative sessions
🔺 Networking & alumni connections
🔺 Educational programs
🔺 College Night & evening events
🔺 The 2026 Wall of Fame Luncheon
🔺 Closing Banquet celebration

Whether you’re an undergraduate delegate, alumnus, volunteer, or first-time attendee, Convention is one of the best opportunities to experience Triangle brotherhood on a national level.

Don’t wait — make plans to join us this summer in Colorado: https://www.triangle.org/events-programs/nationalconvention/

🎓 Congratulations to our graduating members!Your time as collegians may be coming to a close, but the experiences, leade...
05/22/2026

🎓 Congratulations to our graduating members!

Your time as collegians may be coming to a close, but the experiences, leadership, and connections built along the way will continue long after graduation. 🔺

We’re proud of all you’ve accomplished and excited to see what’s next for each of you.

Congratulate our graduating brothers in the comments!

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

Website

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