- PIXIEL GROUP
- Palo Alto Research Center
- Peking University [Beijing]
- Pengcheng Laboratory = Peng Cheng Laboratory [Shenzhen]
- Penn State System
- Pennsylvania State University
- Performance analysis and optimization of LARge Infrastructures and Systems
- Pohang University of Science and Technology
- Politecnico di Milano [Milan]
- Pontificia universidad Javeriana, Cali
- Pontifícia Universidade Católica do Rio de Janeiro [Brasil] = Pontifical Catholic University of Rio de Janeiro [Brazil] = Université catholique pontificale de Rio de Janeiro [Brésil]
- Poznan University of Technology
- Preuves, Programmes et Systèmes
- Programming Language Technology For Communication Services
- Proof-oriented development of computer-based systems
- Purdue University [West Lafayette]