PhilRice conducts joint RD&E activities with international donor agencies such as the following:
- Asia Rice Foundation
- Bill and Melinda Gates Foundation
- Enertime SAS, France
- German Development Cooperation
- International Atomic Energy Agency
- International Rice Research Institute
- International Crops Research Institute for the Semi-Arid Tropics
- Japan International Cooperation Agency
- Helmholtz Center for Environmental Research, Germany
- Nagoya University, Japan
- Rural Development Administration, Republic of Korea
- RDA- Korean Project on International Agriculture
- Korea International Cooperation Agency
- Sarmap S.A., Switzerland
- Southeast Asian Regional Center for Graduate Study and Research in Agriculture
