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More than a sorority

Tri Sigma is a transformative and inclusive space where women build lifelong friendships, learn to navigate and excel in today’s ever-changing landscape, and inspire meaningful change in the world.

Empowering Women Since 1898

Tri Sigma was founded on the guiding values of wisdom, power, faith, hope, and love.

Lifelong Connections

Whether you are a recent graduate, new to your local community, or looking to reconnect with chapter sisters, there are engagement opportunities for Sigmas at any stage of life.  

Alumnae Chapters

Use our chapter map to find the alumnae chapter closest to you. We are never too far away.

News & Events

Catch up on the latest updates and happenings at NHQ, around the country, and near you.

Volunteer Opportunities

Tri Sigma volunteers enhance the collegiate experience and support the national organization.

Engage With Us

Though alumnae life looks a bit different than the collegiate experience, your membership in Tri Sigma spans a lifetime. It’s never too late to catch up. We’ll be right here.

Sister Search

Lost touch with a sister? Look up your old roommate or little sis in Sigma Connect.

The Triangle Magazine

Submit your story or read up on all things Sigma in our annual magazine.

Address Update

Log into Sigma Connect and make sure your contact information is up to date.

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Shop Tri Sigma

Purple & Pearls
Shop Purple & Pearls, the official boutique of Tri Sigma, for all your apparel needs—including custom chapter orders.

Herff Jones
Herff Jones is the official jeweler of Tri Sigma offering milestone pieces, graduation stoles, and everyday jewelry.

Find Greek
Looking for more? Check out FindGreek for more Tri Sigma apparel and gift ideas from officially licensed vendors.

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Why Tri Sigma?

Joining Tri Sigma means becoming a part of a worldwide sisterhood of women who support, inspire, and motivate each other to reach their full potential. 

Collegiate members on bid day
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