| Company | Location | Website |
|---|
| Priority Power | The Woodlands, Texas | Visit site |
| Priority Wire & Cable | Little Rock, Arkansas | Visit site |
| Prism Electric | Garland, Texas | Visit site |
| Prism Solar Technologies | Newark, New Jersey | Visit site |
| Prisma Energia Solar e Eficiência Energética | Itajaí, Santa Catarina | Visit site |
| Prisma Solar Energia | São Paulo, São Paulo | Visit site |
| Prismecs | Houston, Texas | Visit site |
| Pristine Sun Corporation | Richmond, California | Visit site |
| Prizma Endüstri | Çankaya, Ankara | Visit site |
| Pro. Energy | Sedalia, Missouri | Visit site |
| ProPlanEn | Heidelberg, Baden-Württemberg | Visit site |
| ProSolar | Charlotte Amalie, US Virgin Islands | Visit site |
| Procore Technologies | Carpinteria, California | Visit site |
| Products Zun Power | Saint-Laurent, Quebec | Visit site |
| Profilodomi | Portaria, Thessaly | Visit site |
| Profloating | Leidschendam, South Holland | Visit site |
| Progressive Green Solutions | Perth, Western Australia | Visit site |
| Progressum Energy Developments | Pozuelo de Alarcón, Madrid | Visit site |
| Project Canary | Denver, Colorado | Visit site |
| Projeto Legal Engenharia Inteligente | Getúlio Vargas, Rio Grande do Sul | Visit site |
| Prolec Energy | Apodaca, Nuevo León | Visit site |
| Properate | Port Moody, British Columbia | Visit site |
| Prosurge Electronics Co., Ltd | Mechanicsburg, PA | Visit site |
| Protecnium | Mérida, Badajoz | Visit site |
| Protonera | Cambridge, England | Visit site |
| Provident Energy Management | Vaughan, Ontario | Visit site |
| Proxima Fusion | München, Bavaria | Visit site |
| ProyectaRenovables | Madrid, Madrid | Visit site |
| Proyectos Integrales del Ecuador PIL S.A. | Quito, Pichincha | Visit site |
| Proyten | Napoli, Naples | Visit site |
| Prysmian | Milano, Milan | Visit site |
| PuREEnergy India | Kandi, Telangana | Visit site |
| Punta | Kisko, Southwest Finland | Visit site |
| Purammon Ltd. | Bet Shemesh, Jerusalem District | Visit site |
| Pure Blue Tech | Bellingham, Washington | Visit site |
| Pure Energie | Enschede, Overijssel | Visit site |
| Pure Power Engineering | Hoboken, New Jersey | Visit site |
| Pure Solar | Wuxi Shi, Jiangsu | Visit site |
| Puronics | Livermore, California | Visit site |
| Purple Land Management | Fort Worth, Texas | Visit site |
| Purpose Capital | Auckland, Auckland | Visit site |
| Putzel Electrical Contractors, Inc. | Norcross, Georgia | Visit site |
| Pvilion | New York, New York | Visit site |
| Pylontech | Hainan | Visit site |
| Pyrotek | Spokane, Washington | Visit site |
| Pysé | Dubai, Dubai | Visit site |
| Pytes | Ontario, California | Visit site |
| Pérez-Llorca | Madrid, Madrid | Visit site |
| pbs Ingenieure GmbH | Köngen, Baden-Württemberg | Visit site |
| powerfluxx GmbH | Margarethen am Moos | Visit site |
| pv magazine USA | Providence, Rhode Island | Visit site |