| Planet Solar Antillas, LLC. | Guayama, Puerto Rico | Visit site |
| Planetary | Dartmouth, Canada | Visit site |
| Plankton PV GmbH | Braunschweig, Germany | Visit site |
| Plataforma Solar de Almería - CIEMAT | Senés, Spain | Visit site |
| Plataforma Solar de Almería - CIEMAT | Almería, Spain | Visit site |
| Platform Groen Gas | Groningen, Netherlands | Visit site |
| Platinum Solar Group | Sydney, Australia | Visit site |
| Plejd | Mölndal, Sweden | Visit site |
| Plenti | Sydney, Australia | Visit site |
| Plexus Energy Limited | Nairobi, Kenya | Visit site |
| Plug The Impact | Coulonces, France | Visit site |
| Plug The Sun | Cape Town, South Africa | Visit site |
| PluginEnergy | Glatten, Germany | Visit site |
| PlusZero Ltd | Edinburgh, United Kingdom | Visit site |
| Pohjan Voima | Espoo, Finland | Visit site |
| Pointek Elektrik Elektronik | Ataşehir, Türkiye | Visit site |
| Polar Night Energy | Tampere, Finland | · |
| Polaris Renewable Energy Inc. | Toronto, Canada | Visit site |
| Polarium | Stockholm, Sweden | Visit site |
| Polat Enerji | Kağıthane, Türkiye | Visit site |
| Polenergia | Warszawa, Poland | Visit site |
| PoliTo H2Fly - Politecnico di Torino | Torino, Italy | Visit site |
| Polinovel | Shenzhen Shi, China | Visit site |
| Polistamp Infissi s.r.l. | Pratovecchio Stia, Italy | Visit site |
| Polistamp Infissi s.r.l. | Laterina Pergine Valdarno, Italy | Visit site |
| PolyTechAfrica Mechatronic Institute of Technology (PMIT) | Johannesburg, South Africa | Visit site |
| PolyTechAfrica Mechatronic Institute of Technology (PMIT) | Milnerton, South Africa | Visit site |
| Polyeco | Athina, Greece | Visit site |
| Polysolar | Cambridge, United Kingdom | Visit site |
| Polytechnik | Traisen, Austria | · |
| Polytrade Global | Voluntari, Romania | Visit site |
| Polytrade Global | Bucharest, Romania | Visit site |
| Polytrade Global | București, Romania | Visit site |
| Pomerleau | Saint-Jacques, Canada | Visit site |
| Pondera | a company of Haskoning | Arnhem, Netherlands | Visit site |
| Ponte Nova Energia | Rio de Janeiro, Brazil | Visit site |
| Poojin Electronic | Guangzhou Shi, China | Visit site |
| Portugal Ventures | Matosinhos, Portugal | Visit site |
| Portugal Ventures | Camarate, Portugal | Visit site |
| Positive Energy Ltd. | Singapore, Singapore | · |
| Positive Energy Solutions Pty Ltd | Australia | Visit site |
| Posse Herrera Ruiz | Sopó, Colombia | Visit site |
| Posse Herrera Ruiz | Bogotá, Colombia | Visit site |
| Posse Herrera Ruiz | Medellín, Colombia | Visit site |
| Posse Herrera Ruiz | Barranquilla, Colombia | Visit site |
| Potentia Renewables Inc. | Toronto, Canada | Visit site |
| PowMr | Shenzhen Shi, China | Visit site |
| Power & Precision Energy | Calgary, Canada | Visit site |
| Power Edge Engineering | Adelaide, Australia | Visit site |
| Power Electronics | Pinneberg, Germany | Visit site |
| Power Electronics | Llíria, Spain | Visit site |
| Power Expert | Melbourne, Australia | Visit site |
| Power Expert | Ravenhall, Australia | Visit site |
| Power Ideas - Affordable Power Solutions | Sydney, Australia | Visit site |
| Power International Holding | Doha, Qatar | Visit site |
| Power International Holding | لوسيل, Qatar | Visit site |
| Power Line Magazine | New Delhi, India | Visit site |
| Power My Home | Vancouver, Canada | Visit site |
| Power Pro Solutions Inc | York, Canada | Visit site |
| Power Stone (Xiamen) Technology Co., Ltd. | Xiamen Shi, China | Visit site |
| Power Sun Energy - PSE | Tunis, Tunisia | Visit site |
| Power X | بيروت, Lebanon | Visit site |
| Power2Drive | Pforzheim, Germany | · |
| PowerBank Corporation | Toronto, Canada | Visit site |
| PowerBee.energy | Belgium | Visit site |
| PowerCo | Salzgitter, Germany | · |
| PowerCurve | Aalborg, Denmark | Visit site |
| PowerDeal | Herstal, Belgium | Visit site |
| PowerDeal | Liège, Belgium | Visit site |
| PowerG Corp. | Milano, Italy | Visit site |
| PowerGen Renewable Energy | Nairobi, Kenya | Visit site |
| PowerGreen | London, United Kingdom | Visit site |
| PowerNetix | Jessheim, Norway | Visit site |
| PowerPlus Energy | Melbourne, Australia | · |
| PowerSun | Baramati, India | Visit site |
| PowerTree | Richmond, United Kingdom | Visit site |
| PowerVolt | Breda, Netherlands | Visit site |
| PowerX | 東京都, Japan | Visit site |
| Powerark Solar | Melbourne, Australia | Visit site |
| Powercell Limited | Ikeja, Nigeria | Visit site |
| Powercent | Dubai, United Arab Emirates | Visit site |
| Powerchina International Group Limited Sucursal Colombia | Bogotá, Colombia | Visit site |
| Powerchina International Group Limited Sucursal Colombia | Beijing, China | Visit site |
| Powerchina International Group Limited Sucursal Colombia | Belgrade, Serbia | Visit site |
| Powerchina International Group Limited Sucursal Colombia | Dubai, United Arab Emirates | Visit site |
| Powerchina International Group Limited Sucursal Colombia | Abidjan, Côte d'Ivoire | Visit site |
| Powerchina International Group Limited Sucursal Colombia | Nairobi, Kenya | Visit site |
| Powerchina International Group Limited Sucursal Colombia | Kuala Lumpur, Malaysia | Visit site |
| Powerchina International Group Limited Sucursal Colombia | Panamá, Panama | Visit site |
| Powercomm Group | Johnstown, Ireland | Visit site |
| Powercrumbs | Arnhem, Netherlands | Visit site |
| Powerex | Vancouver, Canada | Visit site |
| Powerinn | China | · |
| Powernice | Ningbo Shi, China | Visit site |
| Powernsun - Solar Components Distributors | Dubai, United Arab Emirates | · |
| Poweron Enertech UK | London, United Kingdom | Visit site |
| Powersys New Energy | China | · |
| Powertec | Amsterdam, Netherlands | Visit site |
| Powertech Constructions Private Limited | Chennai, India | Visit site |
| Powertech Labs Inc | · | Visit site |
| Powertrac | Dhaka, Bangladesh | Visit site |
| Powerway | Fuoshan Shi, China | Visit site |
| Powerwind Group TR | Bayraklı, Türkiye | Visit site |
| PowiDian Energy | La Ville-aux-Dames, France | Visit site |
| Powitt Solar | Changzhou Shi, China | Visit site |
| Pradecon | Arcos, Portugal | Visit site |
| Prado Energia | Lisboa, Portugal | Visit site |
| Pragati Urza Pvt Ltd. | Ahmedabad, India | · |
| Pragma Industries | Biarritz, France | Visit site |
| PreZero España | Madrid, Spain | Visit site |
| Predict+ by Tigo Energy | Hod HaSharon, Israel | · |
| Preishouse GmbH | Chemnitz, Germany | Visit site |
| Premier Energies Limited | Secunderabad, India | Visit site |
| Premier Energies Limited | Hyderabad, India | Visit site |
| Premier Energies Limited | Gummadidala, India | Visit site |
| Premier Energies Limited | Rangareddy, India | Visit site |
| Premier Energies Limited | Sangareddy District, India | Visit site |
| Premier Energies Limited | India | Visit site |
| Premier Energy | Lahore, Pakistan | Visit site |
| Premier Environmental Services Inc. | Cambridge, Canada | Visit site |
| Premier Solar | Secunderabad, India | · |
| Premium PSU | L'Hospitalet de Llobregat, Spain | · |
| Premium Solar Energy (Pty) Ltd | Pappegaai, South Africa | · |
| Premium Solaranlagen GmbH | München, Germany | Visit site |
| Prieska Power Reserve | Johannesburg, South Africa | · |
| Prime Capital AG | Frankfurt am Main, Germany | Visit site |
| Prime Capital AG | London, United Kingdom | Visit site |
| Prime Capital AG | Luxembourg, Luxembourg | Visit site |
| Prime Solar Energy | Canberra, Australia | Visit site |
| PrimeEnergy Technics SA | Satigny, Switzerland | Visit site |
| Prisma Energia Solar e Eficiência Energética | Itajaí, Brazil | Visit site |
| Prisma Solar Energia | São Paulo, Brazil | Visit site |
| Prizma Endüstri | Çankaya, Türkiye | Visit site |
| Prizma Endüstri | Ankara, Türkiye | Visit site |
| Pro Energy Solutions GmbH | St. Ingbert, Germany | · |
| Pro-Energy | Kyiv, Ukraine | Visit site |
| ProPlanEn | Heidelberg, Germany | Visit site |
| ProSolar | Charlotte Amalie, US Virgin Islands | Visit site |
| Proauto Solar | Sorocaba, Brazil | · |
| Proenergy Energía Renovable | Puebla, Mexico | Visit site |
| ProfEC Ventus GmbH | Oldenburg, Germany | · |
| Professional Energy Solutions Ltd. | Enfield, United Kingdom | Visit site |
| ProfiNRG | Utrecht, Netherlands | Visit site |
| Profilodomi | Portaria, Greece | Visit site |
| Profloating | Leidschendam, Netherlands | · |
| Profuse Energy (PEIPL) | Hyderabad, India | Visit site |
| Progressive Energy | Stonehouse, United Kingdom | Visit site |
| Progressive Green Solutions | Perth, Australia | Visit site |
| Progressture Solar | Kuala Lumpur, Malaysia | Visit site |
| Progressum Energy Developments | Pozuelo de Alarcón, Spain | Visit site |