- Padjadjaran University
- PalmElit SAS
- People's Friendship University of Russia [Moscow] = Rossijskij universitet družby narodov [Moskva]
- Pepper Research and Development
- Phipps Conservatory and Botanical Gardens
- Phuc Sinh Son Corporation
- Plant & Food Research
- Plateforme d'Analyse Protéomique de Paris Sud Ouest
- Pôle de Recherche Agro-Environnementale de la Martinique
- Pontificia Universidad Católica de Chile
- Pontificia Universidad Católica de Valparaíso
- Post Graduate Department of Zoology, Khalsa College Amritsar
- Postgraduate Program in Biodiversity and Conservation, Federal University of Maranhão
- Potsdam Institute for Climate Impact Research
- Presco Plc
- Prince of Songkla University
- Provincial Agriculture and Forestry Office
- Purdue University [West Lafayette]