Pi Beta Phi has worked to support and empower our sisters since 1867. In the century and a half since, more than 350,000 women have proudly worn our golden arrow.

Pi Beta Phi (ΠΒΦ), often known simply as Pi Phi, is an international women's fraternity founded at Monmouth College, in Monmouth, Illinois on April 28, 1867, as I. C. Sorosis, the first national secret college society of women to be modeled after the men's Greek-letter fraternity.

That organization — originally called I.C. Sorosis — is now Pi Beta Phi Fraternity for Women, a sisterhood of more than 350,000 women. Learn more about Pi Beta Phi with some fast facts about our sisterhood.

Pi Beta Phi Fraternity for Women 1154 Town and Country Commons Drive | Town and Country, MO 63017 Tel: (636) 256-0680

May 15, 2012 · Ed Oberg and Jay A. Johnson have developed a unique expression for the pi-phi product (pΦ) as a function of the number 2 and an expression they call “The Biwabik Sum,”a function of phi, the set of all odd numbers and the set of all Fibonacci numbers, as follows: – … = 5.083203692….

Meeting Ritual was developed in the 1890s to unify us as a sisterhood. We are evolving meeting Ritual to reflect our core values and today’s membership while retaining our purpose of connecting Pi Phis at each meeting. With this evolution, is Pi Beta Phi abandoning our core values? Pi Beta Phi’s core values continue to anchor us.

In 1867, 12 courageous women founded Pi Beta Phi, enriching countless lives during collegiate years and beyond. Pi Beta Phi fosters meaningful relationships, a sense of belonging, mutual support and guidance.

Pi Beta Phi fosters meaningful relationships, a sense of belonging, mutual support and guidance. Our legacy of philanthropic service, innovative member programming, premier events and leadership development programs help our sisters become Friends and Leaders for Life.

In 1867, 12 courageous women founded Pi Beta Phi, enriching countless lives during collegiate years and beyond. Pi Beta Phi fosters meaningful relationships, a sense of belonging, mutual support and guidance.

The Mission of Pi Beta Phi Fraternity for Women is to promote friendship, develop women of integrity, cultivate leadership potential and enrich lives through community service. Contact Us (636)-256-0680