Phi Sigma Alpha - Sigma Foundation

The Sigma Foundation or "Fundación Sigma" is a non profit organization, established to offer to the Puerto Rican youth of limited resources or those who have academically excellent records, the opportunity to cover part of their university studies expense and others costs. Through different fraternity activities, planned in order to raise funds, the organization looks to always maintain a healthful economical level, thus to be able to fulfill their philanthropic intentions.

The fraternity collaborates and contributes to different organizations, mainly to the "Fondita de Jesus", the American Red Cross, American Cancer Society and "Centro Espibi" in Mayagüez. Different golf tournaments have been held to raise fund for charity. The Beta Boriquen chapter coordinates one such tournament with the Mayagüez Rotary Club.