Profile
- Efren ES Ricalde
- Pasig, Metro Manila, Philippines
- Efren, President/CEO of GSI, is an experienced public speaker and an avid tennis player, photographer, a beginner classical guitarist. He was the former Chairman of Philippine Geomatics Association (PhilGeo) and is an active member of other IT associations. He has a diploma in Strategic Business Economics from the University of Asia and the Pacific, units in MS Remote Sensing in UP Diliman, BS Geodetic Engineering at UP Diliman and an alumni of Manila Science High School.