| Pandy Paws Limited | Other services | 2020 |
| Pant Glas Ltd | Agriculture & fishing | 2020 |
| Parc Llwydiarth Limited | Hospitality | 2022 |
| Parry and Evans Holding Ltd | Professional & scientific | 2018 |
| Parry and Evans Limited | Water & waste | 2008 |
| PARTS4PICKUPS Limited | Wholesale & retail | 2020 |
| PB Construction & Building Services Limited | Construction | 2017 |
| Peak Underground Solutions Limited | Professional & scientific | 2025 |
| PEN Y Coed Construction & Insulation Ltd. | Construction | 2000 |
| PEN Y Coed Limited | Construction | 2013 |
| Pennant Limited | Real estate | 2019 |
| Pentre House Management Company Limited | Households | 2005 |
| People Support Ltd | Health & social care | 2020 |
| Peter Holding Plumbing Limited | Construction | 2006 |
| Peter Piper Plumbing and Heating Ltd | Construction | 2018 |
| Peter Sheppard Electrical Services Limited | Construction | 2013 |
| Pharmatracks Limited | Other services | 2009 |
| Phillips Accountancy Services Limited | Professional & scientific | 2012 |
| PHL Group Limited | Transport & logistics | 2020 |
| PHL Group SIP Trustees Limited | Transport & logistics | 2021 |
| Pickstock Homes Limited | Construction | 2005 |
| Pico Ruivo Limited | Financial services | 2023 |
| Planet-Air Capital Limited | Professional & scientific | 2020 |
| Planet-Air Corporate Limited | Professional & scientific | 2020 |
| Planet-Air Holdings Limited | Financial services | 2025 |
| Planet-Air Infrastructure Limited | Professional & scientific | 2020 |
| Planet-Air Limited | Financial services | 2020 |
| Planet-Air Real Estate Limited | Real estate | 2020 |
| Planet-Air Securities Limited | Professional & scientific | 2020 |
| Plas Dolanog Ltd | Agriculture & fishing | 2019 |
| Plas TEG Trust Limited | Arts & recreation | 2013 |
| Pola Inn Ltd | Hospitality | 2011 |
| Pontbren Ltd | Agriculture & fishing | 2003 |
| Ponthir Developments Limited | Construction | 2021 |
| Poplar Management Company Limited | Households | 2005 |
| Poru-Paish Group Ltd | Financial services | 2019 |
| Positive Flames Ltd | Manufacturing | 2022 |
| Potter Environmental Limited | Extraterritorial | 2019 |
| Potter Generating Limited | Extraterritorial | 2024 |
| Potter Group Logistics Limited | Transport & logistics | 2019 |
| Potter Homes Limited | Financial services | 2019 |
| Potter Properties Limited | Real estate | 2017 |
| Potter Property Developments Limited | Construction | 2019 |
| Potter's GCL Limited | Financial services | 2010 |
| Potter's Waste Management Limited | Professional & scientific | 2004 |
| Potters Renewable Energy Limited | Energy | 2015 |
| Potters Waste Services Ltd | Water & waste | 2020 |
| Powis Castle Shoot Limited | Agriculture & fishing | 2013 |
| Powis Developments Limited | Professional & scientific | 2011 |
| Powis Property Services Limited | Real estate | 2017 |
| Powys County Brickwork Contractors Limited | Construction | 2024 |
| Powys Leys Ltd | Wholesale & retail | 2015 |
| Powys Luxury Loos Limited | Administrative & support | 2022 |
| Powys Poultry LLP | | 2012 |
| Powys Trophies Limited | Manufacturing | 2016 |
| Powysland Club, Clwb Powysland | Arts & recreation | 2007 |
| Powysland Developments Limited | Financial services | 2021 |
| Propertierge Ltd | Information & communication | 2024 |
| Puddle Accountancy Limited | Professional & scientific | 2023 |
| Puku Films Limited | Information & communication | 2014 |
| Pulsom Ltd | Construction | 2021 |
| Purebeauty (Welshpool) Limited | Other services | 2010 |
| Purslow & Co Ltd | Other services | 2022 |
| PYC Insulation Limited | Construction | 2013 |
| PYC Systems Limited | Wholesale & retail | 2013 |
| Pyjama Drama (Franchising) Ltd | Education | 2009 |
| QGL Limited | Manufacturing | 2007 |
| Quoit Media Limited | Information & communication | 2012 |
| R & R Stevens Limited | Manufacturing | 2014 |
| R G Peate Funeral Services Ltd | Other services | 2013 |
| R K Dainty Limited | Professional & scientific | 2026 |
| R M + E Jones & Sons Ltd | Transport & logistics | 2017 |
| Rapidaid Ambulance Ltd | Transport & logistics | 2024 |
| Raven Inn Limited | Hospitality | 2023 |
| Ravenol UK Ltd | Wholesale & retail | 2005 |
| Ravenscroft-Lowe Limited | Construction | 2001 |
| RBJ Leisure Limited | Agriculture & fishing | 2021 |
| RBL Shinglers Ltd | Manufacturing | 2018 |
| RC PIT Box Limited | Wholesale & retail | 2014 |
| RDE Home & Garden Services Ltd | Construction | 2026 |
| Real Energy Management Ltd | Professional & scientific | 2020 |
| Reanimator Limited | Information & communication | 2002 |
| Recruiting With Care Ltd | Extraterritorial | 2022 |
| Red Ridge Centre Ltd | Hospitality | 2022 |
| Red Sky Food Bidco Limited | Professional & scientific | 2025 |
| Red Sky Food Group Limited | Professional & scientific | 2025 |
| Red Sky Food Midco Limited | Professional & scientific | 2025 |
| Red Trux Limited | Transport & logistics | 2024 |
| Remoteworld Ltd | Hospitality | 2010 |
| Revo Bikes Limited | Wholesale & retail | 2016 |
| Rhiew Valley Motors Limited | Transport & logistics | 2001 |
| Rhys Evans Services Limited | Professional & scientific | 2024 |
| Richards Services Limited | Administrative & support | 2007 |
| Ridgeway View (Churchstoke) Management Company Ltd | Households | 2021 |
| Rikki Lloyd Family Butchers Limited | Wholesale & retail | 2022 |
| RJA Agritronics Ltd | Manufacturing | 2010 |
| RLE Services Limited | Construction | 2020 |
| Roberts Eggs Ltd | Wholesale & retail | 2008 |
| Rodney’S Retreat Limited | Hospitality | 2025 |
| Rolley Punk Records Ltd | Information & communication | 2024 |