International

• CIMMYT – International Maize and Wheat Improvement Centre
• BASF – A private chemical company
• Weizmann Institute of Science, Israel
• TSBF-CIAT – Tropical Soil Biology and Fertility Program of the International Centre for Tropical Agriculture
• IITA – International Institute of Tropical Agriculture

Kenya

• KARI – Kenya Agricultural Research Institute
• Ministry of Agriculture
• WeRATE – The Western Regional Alliance for Technology Evaluation:  consortium of NGOs, community based organisations and farmers’ rganisations
• Local private seed companies – Western Seed, Lagrotech and Kenya Seed

Uganda

• NARO – National Agricultural Research Organisation
• FICA – Farm Inputs Care Centre Ltd
• Africa 2000 Network
• NAADS – National Agricultural Advisory Services

Tanzania

• Ministry of Agriculture
• Tanseed International Ltd
• ARI – Agricultural Research Institute, Mwanza

Malawi

• University of Malawi, Bunda College
• Zum Seed Ltd
• Ministry of Agriculture
• Chitedze Research Station