| NB Consultants Ltd | Independent Consultant |
| Nedwa | Non-Governmental Organization |
| New Dawn Engineering | Private Industry |
| Nexus Carbon for Development | Non-Governmental Organization |
| Ngara Jatropha Foundation | Non-Governmental Organization |
| Nishant Bioenergy P Ltd | Private Industry |
| Nitsare Project Service Plc | Independent Consultant |
| NSF International | Other Organization Type |
| Odey Renewable Energy Technology Company Limited | Non-Governmental Organization |
| OMNIHORIZONS DEVELOPMENT INITIATIVES | Non-Governmental Organization |
| Organicc Ltd | Carbon Project Developer |
| OSA-EFE INTERNATIONAL LIMITED | Academia |
| Padmashini Enterprises | Other Organization Type |
| Pal pauper Care Foundation | Non-Governmental Organization |
| Pallivikash Pratistan | Non-Governmental Organization |
| Pamoja Inc | Non-Governmental Organization |
| Paper Recycling Skills Project (PRSP) | Other Organization Type |
| Participatory Rural Initiatives to Environmental Development-Uganda(PRIED-Ug) | Non-Governmental Organization |
| Partners for Development | Non-Governmental Organization |
| Partners for Euro-African Green Energy (PANGEA) | Non-Governmental Organization |
| Peace Corps | Government |
| Peace Corps-Dominican Republic | Government |
| Peking University Health Science Center | Academia |
| People for Guatemala | Non-Governmental Organization |
| Perene Institute | Non-Governmental Organization |
| Permagri SA | Private Industry |
| Pertamina | Private Industry |
| Philips | Private Industry |
| Planète Bois | Non-Governmental Organization |
| Population Services International | Non-Governmental Organization |
| Potential Energy | Non-Governmental Organization |
| Practical Action | Non-Governmental Organization |
| Practical Action Bangladesh | Non-Governmental Organization |
| Practical Action East Africa | Non-Governmental Organization |
| Practical Action Nepal | Non-Governmental Organization |
| Prakti Design Lab | Private Industry |
| Pratham | Non-Governmental Organization |
| Pravuta Polam Badi | Non-Governmental Organization |
| PRC Global Pte.Ltd | Private Industry |
| PRINCE Promoters, Researchers & Innovators in New & Clean Energy (Suman Foundation) | Non-Governmental Organization |
| Pro-biodiversity Conservationits in Uganda (PROBICOU) | Non-Governmental Organization |
| Project Gaia, Inc. | Independent Consultant |
| Project Surya | Academia |
| Proleña | Non-Governmental Organization |
| ProPeru | Non-Governmental Organization |
| Proyecto de Infraestructura Descentralizada - Bolivia | Government |
| Proyecto Mirador | Non-Governmental Organization |
| Public-Private Alliance Foundation | Non-Governmental Organization |
| Pulsee International Network | Private Industry |
| Qingdao Institute of Bioenergy and Bioprocess Technology | Academia |