Alpha Sigma Phi (ΑΣΦ), commonly known as Alpha Sig, is an intercollegiate men's social fraternity with 181 active chapters and provisional chapters. Founded...

Phi Sigma Sigma (ΦΣΣ), colloquially known as Phi Sig, was the first collegiate nonsectarian sorority to allow membership of women of all faiths and backgrounds...

Phi Sigma Pi National Honor Fraternity (ΦΣΠ) is a gender-inclusive/mixed-sex national honor fraternity based in the United States. The fraternity is a...

Phi Beta Sigma Fraternity, Inc. (ΦΒΣ) is a historically African American fraternity. It was founded at Howard University in Washington, D.C., on January...

Phi Sigma Kappa (ΦΣΚ), colloquially known as Phi Sig or PSK, is a men's social and academic fraternity with approximately 74 active chapters and provisional...

The Sigma Phi Society (ΣΦ) is the second Greek fraternal organization founded in the United States and the first to establish a chapter at another college...

Sigma Pi Phi (ΣΠΦ), also known as The Boulé, is an African American professional fraternity. Founded in Philadelphia, Pennsylvania, in 1904, it is arguably...

Delta Sigma Phi (ΔΣΦ), commonly known as Delta Sig, is a fraternity established in 1899 at The City College of New York (CCNY). It was the first fraternity...

Sigma Phi Epsilon (ΣΦΕ), commonly known as SigEp, is a social college fraternity for male college students in the United States. It was founded on November...

Phi Sigma Phi,(ΦΣΦ) is a national fraternity in the United States founded on July 30, 1988 in South Bend, Indiana by chapters formerly of Phi Sigma Epsilon...

Phi Kappa Sigma (ΦΚΣ), also known as Phi Kap, Skulls, Skullhouse, or PKS, is an international all-male college secret society and social fraternity. Commonly...

The list of Delta Sigma Phi members includes notable people who are or were once a member of the Delta Sigma Phi fraternity....

Phi Sigma Alpha (ΦΣΑ), commonly known as La Sigma, is a Puerto Rican fraternity originally established as the Sigma Delta Alpha Fraternity (Sociedad de...

Phi Sigma Tau (ΦΣΤ, or PST) is an international honor society for philosophers. In addition to providing a means of awarding distinction to students having...

Zeta Psi, Kappa Kappa Kappa, Phi Sigma Kappa, Sigma Nu, Sigma Alpha Epsilon, Chi Phi, Theta Delta Chi, Phi Gamma Delta, Sigma Chi, and Gamma Delta Chi. It...

Upsilon Phi Sigma, (ΥΦΣ) abbreviated as UPS, is a Philippine inter-university and collegiate fraternity and sorority which claims to have been established...

Sigma Phi Delta (ΣΦΔ) is an international professional-social fraternity of engineers. As "The Premier International Fraternity of Engineers", the organization...

Phi Sigma (ΦΣ) is an honor society for students of biological sciences, formed at Ohio State University. The Phi Sigma honor society was founded on March...

Phi Sigma Rho (ΦΣΡ; also known as Phi Rho or PSR) is a social sorority for individuals who identify as female or non-binary in science, technology, engineering...

Sigma Phi Sigma (ΣΦΣ) was an American national collegiate fraternity founded in 1908 at the University of Pennsylvania. It ceased operations during WWII...

Phi Beta Sigma (ΦΒΣ) is an international historically Black fraternity. Founded on January 9, 1914, on the campus of Howard University in Washington, D...

multiple fraternities. Merged with Phi Iota Alpha. Merged with Phi Epsilon Pi. Formerly a member of NIC. Merged with Phi Sigma and dispersed to multiple fraternities...

The Upsilon Sigma Phi (ΥΣΦ) is the oldest Greek-letter organization and fraternity in Asia. Founded in 1918, it is also the oldest student organization...

merger with the Phi Sigma Kappa (ΦΣΚ) fraternity. In 1985, the majority of Phi Sigma Epsilon chapters participated in the merger. Phi Sigma Kappa incorporated...

Alpha Phi Sigma (ΑΦΣ) (Phi is pronounced "fi") is the only Criminal Justice Honor Society accredited by the Association of College Honor Societies. Traditionally...

Beta Sigma Phi International (ΒΣΦ) is an international noncollegiate sorority with 200,000 members. Founded in Abilene, Kansas, in 1931 by Walter W. Ross...

discipline-specific. Tau Beta Pi and Sigma Xi were founded in 1885 and 1886, respectively. And then there was Phi Beta Kappa, a social and literary society...

Sigma Phi Sigma (ΣΦΣ) is an American professional and service coed fraternity for college students studying to be funeral service practitioners. Sigma...

members of the NIC. In December 2002, Kappa Sigma (December 9), Phi Delta Theta (December 9), and Phi Sigma Kappa, withdrew their membership in the NIC...

Phi Eta Sigma (ΦΗΣ) is an American freshman honor society. Founded at the University of Illinois on March 22, 1923, it is the oldest and largest freshman...