| Paparazzi (Melton Mowbray) Ltd | Hospitality | 2016 |
| Paparazzi Stamford Ltd | Hospitality | 2020 |
| Paper Plane Pharma Consulting Ltd | Professional & scientific | 2023 |
| Paperless Medics Ltd | Information & communication | 2026 |
| Papyrus Marketing Limited | Administrative & support | 2001 |
| Parade Court Limited | Real estate | 1954 |
| Paradine Developments Limited | Construction | 2017 |
| Pargentic Ltd | Information & communication | 2018 |
| Parity Mediation Ltd | Administrative & support | 2023 |
| Parkgate Media Limited | Information & communication | 2014 |
| Parkhill Consultancy Limited | Professional & scientific | 2022 |
| Parkmaster UK Limited | Hospitality | 2026 |
| Parkroad Yummy Limited | Hospitality | 2025 |
| Parnhams Contracting Ltd | Construction | 2021 |
| Parrfection Properties Ltd | Real estate | 2022 |
| Part B Expert Services Limited | Professional & scientific | 2022 |
| Part B Fire Engineering Limited | Public administration | 2022 |
| Part B Fire Testing Limited | Professional & scientific | 2022 |
| Part B Group Ltd | Professional & scientific | 2020 |
| Partb (Certification) Limited | Professional & scientific | 2022 |
| Passion 4 Driving Connect Ltd | Transport & logistics | 2017 |
| Pastures Farm (Plungar) Limited | Administrative & support | 1987 |
| Pastures Green Communications Ltd | Professional & scientific | 2019 |
| Pattern Portfolio Limited | Administrative & support | 2014 |
| Paudy Lane Management Company Limited | Real estate | 2023 |
| Paul Ford Tree Surgery Ltd | Other services | 2007 |
| Paul Haines Flooring Ltd | Construction | 2022 |
| Paul Moore Property Maintenance Ltd | Construction | 2020 |
| Paul R Towns Limited | Agriculture & fishing | 2003 |
| Paul Towns Agriculture Limited | Wholesale & retail | 2017 |
| Paul's Landscapes Ltd. | Administrative & support | 2016 |
| Pave Pro Tools Ltd | Manufacturing | 2026 |
| Pavemaster Driveways Limited | Construction | 2020 |
| Pavilion Estates Limited | Professional & scientific | 1970 |
| Pawvik Ltd | Wholesale & retail | 2026 |
| Payment Assist (Ireland) Ltd. | Financial services | 2017 |
| Payment Assist (UK) Ltd | Financial services | 2016 |
| Payment Assist Ltd | Information & communication | 2013 |
| Peaceful Path VET LLP | | 2026 |
| Peaches and Cream Ltd | Wholesale & retail | 2013 |
| Peacock Property Restoration Ltd | Real estate | 2022 |
| Pearce & Sons (Melton) Limited | Wholesale & retail | 2002 |
| Pearl & Glow Beauty Ltd | Other services | 2026 |
| PEN Project Management Ltd | Professional & scientific | 2019 |
| Pendumembu Limited | Real estate | 2025 |
| Pensio Property Management Ltd | Real estate | 2025 |
| Peony Psychology Ltd | Health & social care | 2023 |
| People Plus Limited | Administrative & support | 1993 |
| Pera Business Park Limited | Administrative & support | 2016 |
| Pera Innovation Limited | Professional & scientific | 1985 |
| Pera International | Professional & scientific | 1946 |
| Perfect Redd Limited | Financial services | 2021 |
| Perfix Roofing Solutions Limited | Construction | 2017 |
| Pharazon Limited | Professional & scientific | 2025 |
| Pheasant Property Group Limited | Real estate | 2022 |
| Phil James Limited | Professional & scientific | 2004 |
| Phil Street Builders Ltd | Construction | 2013 |
| Phill Stevens Hybrid Solutions Ltd | Professional & scientific | 2024 |
| Philpotts (Leicester) Limited | Administrative & support | 2004 |
| Phone Link Melton Ltd | Wholesale & retail | 2022 |
| Pianta Ltd | Administrative & support | 2025 |
| Pick Aircon Ltd | Construction | 2024 |
| Pickwell Plant Limited | Agriculture & fishing | 2009 |
| Pikerace Limited | Agriculture & fishing | 1997 |
| Pinder Consultancy Ltd | Information & communication | 2013 |
| Pinfold Properties Ltd | Hospitality | 2019 |
| Ping Media Group Ltd | Information & communication | 2026 |
| Pinnacle Property (EM) Ltd | Real estate | 2024 |
| Pioneer Cleaning Ltd | Administrative & support | 2016 |
| Pioneer Environment Group Ltd | Professional & scientific | 2018 |
| Pittch Ltd | Manufacturing | 2013 |
| Pixel Bookkeeping Ltd | Extraterritorial | 2026 |
| Pjfleetmaintenance Ltd | Wholesale & retail | 2026 |
| PKH Limited | Transport & logistics | 2021 |
| Plasmapart Limited | Wholesale & retail | 2011 |
| Platinum Creative Solutions Ltd | Real estate | 2021 |
| Plumbheat (MM) Limited | Construction | 2015 |
| PLUMBING2EARTH Ltd | Construction | 2009 |
| Plutonomics Limited | Professional & scientific | 2013 |
| Polyfore Ltd | Arts & recreation | 2008 |
| Polymarine Limited | Wholesale & retail | 1976 |
| Pool Hall Farm Limited | Agriculture & fishing | 2020 |
| Poolgenix Ltd | Construction | 2022 |
| Poplar Nursery Surfleet Ltd | Construction | 2024 |
| Poppy Darling Ltd | Real estate | 2026 |
| Poppy’S Emporium Ltd | Wholesale & retail | 2019 |
| Portersplace Properties Ltd | Real estate | 2026 |
| Portfolio Advisory Limited | Administrative & support | 2016 |
| Posterco Ltd | Wholesale & retail | 2010 |
| Potter Hill Holdings Ltd | Real estate | 2025 |
| PP Building Management Ltd | Real estate | 2018 |
| PPH Investments Limited | Construction | 2021 |
| PRA Hampton Limited | Professional & scientific | 2018 |
| Pracownia Bliskosci C.I.C. | Education | 2018 |
| Practicurl Ltd | Wholesale & retail | 2024 |
| Pragati Enterprise Limited | Health & social care | 2013 |
| Prazeworks Digital Ltd | Information & communication | 2023 |
| Premgripp Limited | Extraterritorial | 2016 |
| Premi-Air Leisure Ltd | Manufacturing | 2014 |
| Premier Line Markings Limited | Arts & recreation | 2013 |