[2][3][4] Organized by Jesus R. Jayme and Nicanor P. Jacinto Jr., it was the first fraternity established in the Philippines after World War II.

[3][1] The fraternity's mission is "to uphold all that is good and noble in man and foster brotherhood, excellence, tradition, achievement, and nationalism".

[1] The fraternity has adopted the Beta Sigma Credo, the "Betan Hymn", and its 9 Principal Truths.

[10] Beta Sigma refers to its officers as:[11] Beta Sigma's members participate in service and charitable activities, such as blood drives, medical and dental missions, building houses, and the distribution of relief packets and food for those in need.

[2][12][13][6][14][15] For its 66th anniversary, the fraternity organized the National Greening Program, overseeing the planting 1.5 billion trees nationwide over six years.