| PNM Facilities Management Ltd | Administrative & support | 2024 |
| PNP Digital Ltd | Information & communication | 2024 |
| Pntb Investments Ltd | Real estate | 2019 |
| PNW Sports Physio Ltd | Health & social care | 2017 |
| PO Bannercross Ltd | Wholesale & retail | 2020 |
| PO Residential Limited | Real estate | 2021 |
| PO' BOY Pies & Sides Ltd | Hospitality | 2022 |
| PO5 Ltd | Wholesale & retail | 2024 |
| Pocamus Ltd | Health & social care | 2025 |
| Pocket PAL Business Management Ltd | Information & communication | 2020 |
| Pocketwood Limited | Information & communication | 2007 |
| Poco Electrical Limited | Manufacturing | 2024 |
| Poco Poco Records Limited | Information & communication | 2021 |
| Pocock Property Ltd | Real estate | 2024 |
| Poczo Ltd | Construction | 2025 |
| POD 1 Ltd | Health & social care | 2016 |
| Poddington Peas Limited | Information & communication | 2004 |
| Podium Automotive Limited | Wholesale & retail | 2026 |
| Podium Projects UK Limited | Professional & scientific | 2009 |
| Pods Plug Yorkshire Limited | Administrative & support | 2021 |
| Pods R US Ltd | Real estate | 2024 |
| Pohodin Boxing Academy Ltd | Education | 2023 |
| Poignie Originals Limited | Manufacturing | 1993 |
| Point D'Appui Associates Limited | Professional & scientific | 2013 |
| Point Locum Limited | Professional & scientific | 2020 |
| Pointon Optometric Professional Services Ltd | Health & social care | 2016 |
| Pointup Construction Ltd | Construction | 2024 |
| Pointy Records Limited | Information & communication | 2002 |
| Poise Wellness Ltd | Other services | 2025 |
| Poke Praise Ltd | Wholesale & retail | 2025 |
| Pokeforge Ltd | Wholesale & retail | 2025 |
| Pokipeeps Ltd | Wholesale & retail | 2026 |
| POL Production Limited | Professional & scientific | 2021 |
| POL Smak Ltd | Wholesale & retail | 2018 |
| Pol-Dom Property Management Ltd | Real estate | 2020 |
| Polaris Metals International Ltd | Wholesale & retail | 2020 |
| Polaris Wealth Limited | Financial services | 2015 |
| Polaris Wealth Management Ltd | Professional & scientific | 2016 |
| Polat & Co Services Ltd | Manufacturing | 2018 |
| Polesideparts Limited | Wholesale & retail | 2025 |
| Polestar Hospitality Consulting Limited | Other services | 2014 |
| Policy 12 Limited | Professional & scientific | 2018 |
| Policy Partners Project Ltd | Health & social care | 2014 |
| Polk Build Co Limited | Real estate | 2025 |
| Polk Group Ltd | Wholesale & retail | 2025 |
| Polkadot Music Collective Limited | Professional & scientific | 2021 |
| Pollards Wholesale Limited | Wholesale & retail | 2008 |
| Polly Bagley Enterprises Limited | Other services | 2020 |
| Pollywood Ltd | Manufacturing | 2011 |
| Poly 63 Ltd | Real estate | 2015 |
| Polydoc Films Ltd | Information & communication | 2017 |
| Polymaths World Ltd | Other services | 2023 |
| Polymorphism Limited | Information & communication | 2003 |
| Polyplas Engineering Ltd | Manufacturing | 2015 |
| Polysmart Ltd | Wholesale & retail | 2020 |
| Polytruck Ltd | Manufacturing | 2011 |
| POM Kitchen Ltd | Hospitality | 2017 |
| Pondarosa Property Ltd | Real estate | 2020 |
| Ponderosa Coffee Shop Limited | Hospitality | 2022 |
| Pongo and Missis Limited | Financial services | 2012 |
| Ponsford Investments Limited | Real estate | 2016 |
| Ponsford Trading Limited | Professional & scientific | 2016 |
| Poodles & Doodles Ltd | Agriculture & fishing | 2025 |
| Pool Plant Solutions Ltd | Manufacturing | 2020 |
| POP! Franchise Limited | Professional & scientific | 2018 |
| Popadom Express Ltd | Hospitality | 2021 |
| Popcorn Investments Limited | Financial services | 2024 |
| Poppadom X Plus Limited | Hospitality | 2025 |
| Poppies K9 Retreat Ltd | Other services | 2026 |
| Poppies Sheffield Limited | Administrative & support | 2026 |
| Popplo Ltd | Other services | 2017 |
| Poppy Accounting Limited | Professional & scientific | 2015 |
| Poppy's Treats Limited | Wholesale & retail | 2018 |
| Pops Community Hub Limited | Arts & recreation | 2026 |
| Pops Deli Limited | Hospitality | 2026 |
| Porchester Construction Limited | Construction | 2025 |
| Pordix Limited | Wholesale & retail | 2026 |
| Porky's Take-Away Ltd | Hospitality | 2020 |
| Portal 6 Ltd | Professional & scientific | 2024 |
| Portal Plus Ltd | Extraterritorial | 2016 |
| Portals Creative Ltd | Arts & recreation | 2023 |
| Portelet Properties Limited | Real estate | 2025 |
| Portelli Consulting Ltd | Information & communication | 2025 |
| Porter BDJ Ltd | Administrative & support | 2009 |
| Porter Brook & Associates Ltd | Real estate | 2021 |
| Porter Brook Electrical & Design Ltd | Construction | 2025 |
| Porter Brook Group Ltd | Real estate | 2017 |
| Porter Brook Limited | Real estate | 2015 |
| Porter Brook View RTM Company Limited | Households | 2017 |
| Porter Coffee Limited | Manufacturing | 2018 |
| Porter Contractors (Dampproofing & Timber Treatment) Limited | Administrative & support | 1983 |
| Porter Contractors Limited | Extraterritorial | 1983 |
| Porter Electrical Ltd | Construction | 2016 |
| Porter Fire Ltd | Manufacturing | 2013 |
| Porter Fire Protection Ltd | Construction | 2024 |
| Porter GAS Ltd | Professional & scientific | 2026 |
| Porter IT Limited | Wholesale & retail | 2024 |
| Porter Marine GAS Consultants Ltd | Professional & scientific | 2026 |
| Porter Pizza Company Limited | Wholesale & retail | 2015 |
| Porter Rose Imaging Ltd | Health & social care | 2026 |