Institute of Integrated Electrical Engineers of the Philippines, Inc. (IIEE), also known as the IIEE, is the result of the integration of two electrical engineering professional organizations ? the Philippine Society of Electrical Engineers (PSEE) and the Philippine Institute of Electrical Engineers (PIEE). PIEE President Luis L. Mendoza and PSEE President Gregorio Sadorra agreed on the unification of the two organizations as early as April 1973. The integration really materialized following the appointment of Engr. Arturo L. Lopez as chairman of the Board of Electrical Engineering (BEE) and his election as president of the PSEE.