| P and H Pancake House Limited | Hospitality | 2016 |
| P C Lawless Limited | Transport & logistics | 2025 |
| P G S Commercial Services Ltd | Wholesale & retail | 2014 |
| P J T Couriers Limited | Administrative & support | 2014 |
| P M F Construction Limited | Construction | 2007 |
| P Property Limited | Real estate | 2018 |
| P Thomas Associates Limited | Professional & scientific | 2008 |
| P W Consultancy Ltd | Professional & scientific | 2002 |
| P&J Private Hire Services Ltd | Transport & logistics | 2018 |
| P&K Group Holdings Limited | Financial services | 2021 |
| P&L Light Haulage Limited | Transport & logistics | 2017 |
| P&L Solutions (UK) Ltd | Professional & scientific | 2013 |
| P&P Brothers Haulage Ltd | Transport & logistics | 2021 |
| P. & M. Butchers Limited | Manufacturing | 2026 |
| P.& G.Farms(Kettering)Limited | Agriculture & fishing | 1958 |
| P.A.W.S.71 Ltd | Construction | 2013 |
| P.And I.Smith Limited | Wholesale & retail | 1954 |
| P.E.S (Priced Engineering Services) Limited | Professional & scientific | 2026 |
| P.J.L. Motors Limited | Wholesale & retail | 2013 |
| P2ST Creative Limited | Arts & recreation | 2013 |
| PAC Hayes Limited | Professional & scientific | 2009 |
| Packapill Ltd | Information & communication | 2024 |
| Pada Drive Limited | Transport & logistics | 2019 |
| Paddle Days Limited | Administrative & support | 2022 |
| Paige Solutions Limited | Other services | 2014 |
| Paint Factory Limited(The) | Extraterritorial | 1983 |
| Paint FX ( Northants) Limited | Wholesale & retail | 2015 |
| Paint Pictures Ltd | Information & communication | 2024 |
| Palm Estate Management Ltd | Real estate | 2024 |
| Palo Santo Films Ltd. | Information & communication | 2022 |
| Pandel Logistics Ltd | Transport & logistics | 2020 |
| Panematch Limited | Information & communication | 2026 |
| Panorama Travel Solutions Ltd | Administrative & support | 2001 |
| Paper & Pistons Ltd | Administrative & support | 2023 |
| Paper Red Media Limited | Extraterritorial | 2021 |
| PAR2 Limited | Professional & scientific | 2018 |
| Paraclete Property Ltd | Real estate | 2016 |
| Paracording UK Ltd | Wholesale & retail | 2023 |
| Paradigm Global Services (UK) Limited | Professional & scientific | 2015 |
| Paradigm Homes Ltd | Real estate | 2022 |
| Paradise Lane Limited | Real estate | 2011 |
| Paradiselanestudios Ltd | Wholesale & retail | 2024 |
| Paragons Consulting Limited | Construction | 2023 |
| Parametric Designs Limited | Information & communication | 2001 |
| Paramount Training Limited | Construction | 2025 |
| Paris Property Group Limited | Real estate | 2018 |
| Park Hill House Nottingham Limited | Real estate | 2026 |
| Park House Locums Limited | Health & social care | 2024 |
| Park Lodge Farms Limited Liability Partnership | | 2004 |
| Park Rise (Reservoir Road) Management Company Limited | Households | 2004 |
| Parker Carpentry Limited | Other services | 2014 |
| Parkers Way Developments Ltd | Real estate | 2023 |
| Parker’S Patch Childcare Ltd | Health & social care | 2022 |
| Parklands Letting Ltd | Administrative & support | 2019 |
| Parks for Pups Ltd | Other services | 2024 |
| Parlour Studios Ltd | Information & communication | 2013 |
| Parrot Resourcing Limited | Administrative & support | 2020 |
| Parrotts Panels Ltd | Wholesale & retail | 2022 |
| Parsons Associates Limited | Construction | 2012 |
| Partnership Management Solutions Limited | Professional & scientific | 2019 |
| PAS1993. Ltd. | Professional & scientific | 2010 |
| Pashler Gardens Management Company Limited | Households | 1994 |
| Passerine Publishing Ltd | Information & communication | 2014 |
| Passion Chefs Foods Ltd | Hospitality | 2025 |
| Passive Profits E-Commerce Limited | Wholesale & retail | 2022 |
| Pastoso Ltd | Information & communication | 2014 |
| Patch Lodge Estate Limited | Financial services | 2022 |
| Pathway Incentives Limited | Wholesale & retail | 2001 |
| Patric Logistics Ltd | Transport & logistics | 2015 |
| Patrick Rayson Scaffolding Services Limited | Construction | 2017 |
| Paul Carver Consulting Limited | Professional & scientific | 2015 |
| Paul Greig Consulting Limited | Administrative & support | 2021 |
| Paul Lake Carpentry Limited | Administrative & support | 2008 |
| Paul London Property Maintenance Ltd | Construction | 2026 |
| Paul Watts Hair Ltd | Other services | 2012 |
| Paul Watts Salons Ltd | Other services | 2011 |
| Paul's Cars Ltd | Transport & logistics | 2025 |
| Paulrose Developments Limited | Real estate | 2001 |
| Pavilion Residents Limited | Households | 1998 |
| Payavi Limited | Wholesale & retail | 2010 |
| Payligroup Ltd | Administrative & support | 2024 |
| Paywiser Limited | Financial services | 2017 |
| Pazadore Transport Limited | Transport & logistics | 2024 |
| PBG Transport Limited | Transport & logistics | 2011 |
| PCL Fire Services Limited | Construction | 2013 |
| PCS Business Systems Group Limited | Financial services | 2014 |
| PCS Business Systems Holdings Limited | Financial services | 2007 |
| PCS Business Systems Limited | Information & communication | 1995 |
| PD Irwin Limited | Wholesale & retail | 2024 |
| PDI ADI Training Limited | Education | 2024 |
| Peaches Health and Social Care Ltd | Administrative & support | 2023 |
| Peachey Loak Limited | Real estate | 2018 |
| Peak Impact Limited | Professional & scientific | 2024 |
| Peak Logistix Ltd | Transport & logistics | 2023 |
| Pearls With Breckon Ltd | Wholesale & retail | 2018 |
| Pearltuition Limited | Education | 2012 |
| Pearlypaintworks Ltd | Wholesale & retail | 2025 |
| PEB Automotive Limited | Wholesale & retail | 2023 |
| Pebbleford Group Limited | Construction | 2020 |
| Pebbleford Homes Ltd | Construction | 2018 |