| Name | Areas/Expertise | Registration No. |
| ARES, EMMA D. | Meteorology | RPCO-029 |
| ANTICAMARA, JONATHAN A. | RCO-043 | |
| BALINANG, ELVIRA R. | Social Impact Assessment | RCO-021 |
| CABALZA, CHESTER B. | Social Impact Assessment | RCO-053 |
| CASTRO, NESTOR | Social Impact Assessment | RCO-012 |
| CEZAR, ELSIE | Environmental Risk Assessment, Environmental Impact Assessment, Environmental Monitoring and Management | RCO-003 |
| CUSTODIO, CARLO C. | Terrestrial Ecology, Marine Ecology | RCO-040 |
| DE GALA, ALAN B. | AQ,WQ,ERA,EIA,EM | RCO-026 |
| CINCO, THELMA A. | Meteorology | RPCO-030 |
| CRUZ, OSKAR | Hydrology, hydrogeology, Meteorology, Geology | RCO-015 |
| DALIDA, LANDRICO U. | Meteorology | RPCO-035 |
| DALISAY, SOLEDAD NATALIA | Social Impact Assessment | RCO-009 |
| DE VILLA, AGERICO | Philosophy | RCO-022 |
| DELOS REYES, PABLO G. | Freshwater Ecology, Marine Ecology |
RCO-030 |
| ESPIRITU, EMILYN Q. | Water Quality, Fresh Water, Environmental Risk Assessment, Environmental Impact Assessment, Environmental Monitoring and Management | RCO-020 |
| GARONG, AME M. | RCO-035 | |
| GONZALES, MINERVA G. | Water Quality, Marine Ecology | RCO-017 |
| GUZMAN, MARIA AILEEN LEAH G. | Water Quality, Land Use, Hydrology, Freshwater Ecology, Social Impact Assessment, Environmental Risk Assessment,Environmental Impact Assessment, Environmental Monitoring & Management | RCO-052 |
| JOAQUINO, HEIDI | Air Quality, Water Quality | RCO-013 |
| HILARIO, FLAVIANA DL. | Hydrology, Meteorology | RPCO-032 |
| JUANILLO, EDNA L. | Hydrology, Meteorology | RPCO-031 |
| LAGMAY, EUGENIA L. | Air Quality,Water Quality,Terrestrial Ecology,Hydrology | RCO-024 |
| LEE, ESPERANZA C. | Social Impact Assessment, Environmental Risk Assessment,Environmental Impact Assessment, Environmental Monitoring & Management |
RCO-033 |
| LIDASAN, HUSSEIN S. | Land Use, Environmental Impact Assessment |
RCO-036 |
| MAESTRECAMPO, DODJIE S. | Air Quality, Water Quality | RCO-011 |
| MANUEL, JOVITO D. | Hydrogeology, Geology, Geomorphology | RCO-018 |
| MENDOZA, MARLYNN M. | Freshwater Ecology | RCO-031 |
| MISSION, ELAINE G. | Water Quality |
RCO-025 |
| MOLINA, VICTORIO B. | Environmental Health Impact Assessment | RCO-034 |
| MONTEVERDE, MA. CECILIA A. | Air Quality, Meteorology | RPCO-033 |
| MORENO, MARIA LOURDES Q. | Terrestrial Ecology, Marine Ecology | RCO-007 |
| MORENTE, JOSE REYNATO | Air Quality, Water Quality, Environmental Risk Assessment, Environmental Impact Assessment, Environmental Monitoring and Management |
RCO-002 |
| NOLASCO, EDINO NONATO L. | Meteorology, Oceanography | RPCO-026 |
| PAGALILAUAN, DAVID | Geology, Geomorphology, Mining | RCO-005 |
| PARAMI, VANGELINE K. | Environmental Risk Assessment, Environmental Management and Monitoring Plan, Water Quality |
RCO-050 |
| PEDROSA, PURA VITA G. | Environmental Impact Assessment, Environmental Risk Assessment, Environmental Management and Monitoring Plan, Water Quality | RCO-037 |
| PEREZ, ROSA T. | Freshwater Ecology, Terrestrial Ecology |
RCO-010 |
| PEREZ, TERESITA R. | Freshwater Ecology, Terrestrial Ecology | RCO-010 |
| QUINTO, ROBERT Z. |
Mining | RPCO-028 |
| QUEBRAL, RAMON D. | Geology | RCO-027 |
| SIGUA, RICARDO | Air Quality, Land Use |
RCO-014 |
| PEREZ, JEFFREY S. | Geology, Geomorphology | RCO-038 |
| QUINTO, ROBERT Z. | Meteorology | RPCO-028 |
| RELOX, NINIO A. | Meteorology | RPCO-034 |
| TIO, JAKE | Air Quality, Water Quality, Environmental Risk Assessment, Environmental Impact Assessment, Environmental Monitoring and Management |
RCO-001 |
| TRONO, GAVINO C. JR. | Environmental Risk Assessment, Environmental Impact Assessment, Environmental Monitoring and Management |
RCO-050 |
| TUDDAO, ANALIZA C. | Meteorology | RPCO-027 |
| VALEROSO, IMELDA I. | Air Quality, Meteorology |
RCO-039 |
| VILLALVA, ERNESTO B. | Hydrology, Geology | RCO-028 |
| VILLEGAS, JASON JUDE P. | Hydrology, Hydrogeology, Geology, Geomorphology, Pedology | RCO-008 |
| ZABALA, REYNALDO R. | Mining | RCO-032 |
