| PLT Beauty Limited | Other services | 2025 |
| Plug and Play Recordings Limited | Arts & recreation | 2016 |
| Plug in One Stop Bathrooms Ltd | Construction | 2021 |
| Plug-In Rehab Ltd | Other services | 2023 |
| Plugshield Ltd | Public administration | 2025 |
| Plugusor Ltd | Transport & logistics | 2025 |
| Plum House Developments Ltd | Real estate | 2025 |
| Plumb & Renew Ltd | Construction | 2024 |
| Plumbtech Solutions Ltd | Construction | 2023 |
| Plume PR Limited | Administrative & support | 2014 |
| Plummer Group Holdings Limited | Financial services | 2025 |
| Plump Aesthetics Limited | Other services | 2019 |
| Plus Education Recruitment UK Ltd | Administrative & support | 2023 |
| Plus Holdings Limited | Administrative & support | 2018 |
| Plus Nyco Limited | Wholesale & retail | 2019 |
| Plus One Community Learning CIC | Education | 2022 |
| Plus One Learning Limited | Professional & scientific | 2018 |
| Plus Packaging Limited | Wholesale & retail | 2011 |
| Plus PAY Services UK Ltd | Professional & scientific | 2017 |
| Plus Tutor Limited | Education | 2025 |
| PLUS1000 Ltd | Wholesale & retail | 2025 |
| PLUS5 Fine Art Limited | Wholesale & retail | 2024 |
| PLUS5 Limited | Information & communication | 2024 |
| Plutus Mechanical Services Ltd | Construction | 2024 |
| Plutus UK Bulk Store Ltd | Transport & logistics | 2013 |
| Plux Properties Ltd | Real estate | 2024 |
| PM & NP Ltd | Construction | 2026 |
| PM & T Properties Ltd | Real estate | 2019 |
| PM (Liverpool) Limited | Professional & scientific | 2010 |
| PM Brickwork Ltd | Construction | 2026 |
| PM Buddy Limited | Information & communication | 2021 |
| PM Carpets Picton Ltd | Wholesale & retail | 2024 |
| PM Company Limited Ltd | Other services | 2016 |
| PM Hatfield Ltd | Transport & logistics | 2025 |
| PM Joinery Services Ltd | Construction | 2006 |
| PM Nights Limited | Real estate | 2014 |
| PM Properties NW Limited | Real estate | 2016 |
| PM QS Services Limited | Administrative & support | 2008 |
| PM Redmond Limited | Education | 2019 |
| PM1 Holdings Ltd | Financial services | 2024 |
| Pmaz Property Solutions Ltd | Real estate | 2021 |
| PMC Asset Management Limited | Real estate | 2016 |
| PMC Building & Construction Ltd | Construction | 2022 |
| PMC Commercial Consultancy Limited | Professional & scientific | 2024 |
| PMC Motion Ltd | Professional & scientific | 2025 |
| PMC Property & Development Ltd | Real estate | 2006 |
| PMC Property Services Limited | Construction | 2023 |
| PMC Protects Ltd | Financial services | 2020 |
| PMC Surfacing Ltd | Construction | 2025 |
| Pmcjd Ltd | Real estate | 2023 |
| PMD Care and Supported Living Ltd | Health & social care | 2025 |
| PMD Electrical Services Limited | Construction | 2015 |
| PMD Offshore and Properties Ltd | Construction | 2024 |
| Pmdd Northwest CIC | Public administration | 2026 |
| PME Developments Limited | Real estate | 2005 |
| PME Estates Limited | Real estate | 2008 |
| PME Investments Ltd | Real estate | 2013 |
| Pmed Holdings Limited | Real estate | 2024 |
| Pmed Limited | Health & social care | 2019 |
| PMF Holdings NW Ltd | Financial services | 2019 |
| PMF Marketing Ltd | Other services | 2020 |
| PMH Legal Ltd | Professional & scientific | 2026 |
| Pmic Group Limited | Real estate | 2023 |
| PML 2 Ltd | Administrative & support | 2019 |
| Pmleg Solutions Ltd | Transport & logistics | 2024 |
| Pmmg Group Ltd | Transport & logistics | 2026 |
| PMO Fabrication & Welding Ltd | Manufacturing | 2019 |
| Pmpl Ltd | Transport & logistics | 2022 |
| PMR Eco Insulation Ltd | Construction | 2023 |
| PMS (NW) Ltd | Construction | 2015 |
| Pmufa Limited | Health & social care | 2014 |
| PMW Gamma Limited | Professional & scientific | 2017 |
| PMWC3 Limited | Households | 2019 |
| PMWC8 Limited | Real estate | 2019 |
| PN Executive Chauffeur Ltd | Transport & logistics | 2025 |
| PN Ltd | Health & social care | 2019 |
| PN Medtech Ltd | Health & social care | 2022 |
| PN Superstore Ltd | Wholesale & retail | 2024 |
| Pneumatic Cylinders Limited | Extraterritorial | 2019 |
| Pnimal Ltd | Wholesale & retail | 2022 |
| PNJ Flooring Installations Ltd | Construction | 2025 |
| PNJ Management Ltd | Construction | 2024 |
| PNM Civils Limited | Construction | 2026 |
| PNP Convenience Store Ltd | Wholesale & retail | 2024 |
| PNR Properties Limited | Real estate | 2026 |
| PNU Limited | Public administration | 2019 |
| PO Electrical Ltd | Construction | 2025 |
| Poached Deli Ltd | Hospitality | 2024 |
| POC Electrical Limited | Construction | 2020 |
| Poca Solicitors Ltd | Professional & scientific | 2021 |
| Pochin Construction Limited | Construction | 1945 |
| Pochin's Limited | Real estate | 1935 |
| Pocket Events Ltd | Hospitality | 2024 |
| Pocket Wellness CIC | Education | 2024 |
| POD Commercial Properties Ltd | Real estate | 2021 |
| POD Properties Ltd | Real estate | 2015 |
| POD Site Services Limited | Construction | 2017 |
| POD Stay Ltd | Hospitality | 2026 |
| POD Trans Ltd | Transport & logistics | 2026 |
| Podcafe Ltd | Arts & recreation | 2022 |