The Institute has established linkages with private institutions, government agencies and non-government organizations, not only in the region but in the entire country as well.

1.    Government Agencies

    • Department of Environment and Natural Resources (DENR) offices
        o National and Regional offices
        o Environmental Management Bureau (EMB) 
        o Ecosystems Research and Development Bureau (ERDB)
        o Philippine Animal and Wildlife Bureau (PAWB)
        o Community Environment and Natural Resources Office( CENRO)
        o Provincial Environment and Natural Resources (PENRO)
    • Department of Science and Technology (DOST)
    • Philippine Council for Industry, Energy and Emerging Technology Research and Development (PCIEERD)  
    • Philippine Council for Agriculture and National Resources Research and Development (PCARRD)
    • Central Luzon Agriculture and Resources Research and Development Consortium (CLARRDEC)
    • Bureau of Fisheries and Aquatic Resources, Region III (BFAR-III)

2.    State Colleges and Universities

    • University of the Philippines-Marine Science Institute (UP-MSI)
    • Aurora State College of Technology (ASCOT)
    • Ramon Magsaysay Technological University (RMTU)
    • Bataan Peninsula State University (BPSU)
    • Bulacan Agricultural State College (BASC)
    • Tarlac College of Agriculture (TCA)
    • Pampanga Agricultural College (PAC)
    • Training Center for Applied Geodesy and Photogrammetry (TCAGP), University of Philippines, Diliman
    • Department of Geodetic Engineering, University of Philippines, Diliman

3.    Other Organizations which undertake Environmental Research/Activities

    • Philippine Association of Tertiary Level Educational Institutions in Environmental Protection Management (PATLEPAM) 
    • Environmental Education Network of the Philippines (EENP)
    • HUMEIN-Philippines, Inc.

4.    NGO

    • Foundation for the Philippine Environment (FPE)
    • Gracia Plena, Inc.
    • Klima, Climate Change Center
    • Tangol Kalikasan Inc. (TKI)
    • Marine Science and Resources Foundation (MERF)

5.    International Organization

    • International Tropical Timber Organizations (ITTO), Yokohama, Japan
    • Center of Nature Conservation, University of Gottingen, Gottingen, Germany
    • World Association of Soil and Water Conservation (WASWAC), China
    • International Institute for Environment and Development (IIED), London
    • ILEA, Center for Learning on Sustainable Agriculture, Netherlands

6.    Media / Press

    • Muñoz Cable TV System
    • Local Radio Stations