List of RPI Fraternities and Sororities - Active Fraternities

Active Fraternities

• Acacia Founded: 4-10, 1949

• Alpha Chi Rho (Crows) (Delta Phi Chapter) Founded: October 23, 1948

• Alpha Epsilon Pi Rho Pi Chapter Founded 1951

• Alpha Phi Alpha

• Alpha Phi Omega RPI's Service Fraternity, Epsilon Zeta chapter. (Co-ed, Not in IFC) Founded: May 11, 1947

• Alpha Sigma Phi Beta Psi Chapter

• Chi Phi Theta Chapter Founded: 1878

The Chi Phi Theta Chapter, founded in 1878, is one of the oldest fraternities on campus and owns two houses next door to each other at 1981 and 1985 15th St across from the Quad and Student Union.

• Delta Phi Lambda chapter

Lambda Chapter of Delta Phi has a unique history since its founding in 1864 on campus that includes 3 Rensselaer presidents (including George Low who is known for putting the first man on the moon) and about 16 structures that are named for Delta Phi alumni. RPI buildings named for Delta Phi alumni include the George M. Low Building, Livingston Houston Fieldhouse, Cornelius Barton Hall. Nason Hall, Mason Lab (no longer in existence), Hearne Dormitory, Church I - VI and Caldwell Lab.

• Delta Tau Delta (Delts) Founded 1879

• Kappa Alpha Psi

• Lambda Chi Alpha Epsilon Eta Chapter

• Lambda Upsilon Lambda

• Phi Gamma Delta (FIJI) Tau Nu chapter Founded: 1984.

• Phi Iota Alpha (Phiotas) Founded: December 26, 1931

• Phi Kappa Tau Rho Chapter

• Phi Kappa Theta (Ski Lodge) Sigma Chapter Founded: 1925

• Phi Mu Delta (Phi Mud) Nu Theta Chapter Founded: 1918

• Phi Sigma Kappa (Phi Sig or Phi Church) Gamma Tetarton Chapter

• Pi Delta Psi

• Pi Kappa Alpha (PIKES)

• Pi Kappa Phi (Castle) Founded : 1931

• Pi Lambda Phi (Pilam) Founded: 1954

• Psi Upsilon (Epsilon Iota) ( Psi Upsilon (ΨΥ) chapter)

Epsilon Iota was originally a chapter of TEP (Tau Epsilon Phi) founded in 1954. The chapter left TEP in 1978 to become a co-ed local fraternity. Epsilon Iota officially became the 37th chapter of the Psi Upsilon international fraternity in 1982, and it remains co-ed with approximately equal numbers of male and female brothers. The chapter currently maintains a house at 2140 Burdett Avenue in Troy. The Epsilon Iota Chapter holds the record for longest number of days (178) in "hockey line" at RPI, breaking the previous record of 33 days.

• Rensselaer Society of Engineers (RSE) Founded : 1866

The Rensselaer Society of Engineers was founded as the Pi Eta scientific society in 1866. In 1883, the Pi Eta scientific society became the Rensselaer Society Of Engineers.

• Sigma Alpha Epsilon

Location: 12 Myrtle Ave, Troy, NY 12180

• Sigma Chi

The Delta Psi Chapter of The Sigma Chi Fraternity was chartered December 2 of 1950. Before that Sigma Chi existed on the RPI campus as a local fraternity known as Phi Epsilon Phi. Sigma Chi is currently located at 58 Pinewoods Avenue, Troy, NY 12180.

• Sigma Phi Epsilon (SigEp) New York Delta Chapter (1938)

Location: 2005 15th Street

• Tau Epsilon Phi

• Theta Chi (Delta Chapter) Founded: 1908.

Located at 2100 Burdett Ave.

• Theta Xi (Zoo) Alpha Chapter. Founded: April 29, 1864

• Zeta Beta Tau (Zebes)

• Zeta Psi (Zetes) Pi Chapter. Founded: January 13, 1865.

The Pi Chapter went inactive in 1894 and was later reactivated in 1951. The chapter remained active until the Alumni/Elders shut down the chapter house in 1980 (for disciplinary reasons) and reactivated the chapter in 1981 with all new members. The Pi Chapter has remained in continuous operation since the second reactivation. Located at 25 Belle Avenue