| Permanent Healthcare Solutions Ltd | Health & social care | 2015 |
| Permanent Property Limited | Real estate | 2014 |
| Permresource Ltd | Administrative & support | 2025 |
| Peroke Limited | Administrative & support | 2014 |
| Perrard Properties Limited | Hospitality | 1983 |
| Perrins Brothers Limited | Professional & scientific | 2012 |
| Perry Bradbury Property Limited | Real estate | 2012 |
| Perryman, Yeandle and Associates Ltd | Education | 2015 |
| Persephonica Ltd | Information & communication | 2021 |
| Perseus Consultancy Ltd | Professional & scientific | 2023 |
| Persian Fusion Ltd | Hospitality | 2025 |
| Persogifts Ltd | Wholesale & retail | 2024 |
| Persona Productions Ltd | Arts & recreation | 2023 |
| Personal AID Assist Limited | Professional & scientific | 2010 |
| Personal Development Centre Limited | Real estate | 2016 |
| Personal Touch Property Services Ltd | Administrative & support | 2023 |
| Personal Trainers Inc Ltd | Arts & recreation | 2012 |
| Personal Transportation Systems Limited | Administrative & support | 2007 |
| Personalised Custom Gifts Ltd | Wholesale & retail | 2018 |
| Perspectiva Latina Ltd | Professional & scientific | 2025 |
| Perspicacious Limited | Professional & scientific | 2024 |
| Pertinacity Cleaners Ltd | Administrative & support | 2024 |
| PES Systems Limited | Manufacturing | 2012 |
| Pescredo Sports International Limited | Manufacturing | 2009 |
| Pest Control Supermarket.Com EOT Trustee Ltd | Professional & scientific | 2025 |
| Pest Control Supermarket.Com Ltd | Wholesale & retail | 2009 |
| Pest Expert International Limited | Wholesale & retail | 2021 |
| Pest Expert Limited | Wholesale & retail | 2010 |
| Pest Power Services Ltd | Administrative & support | 2024 |
| Pestforce Derbyshire Ltd | Administrative & support | 2008 |
| Pestforce Yorkshire Limited | Other services | 2009 |
| Pestfree Limited | Wholesale & retail | 2000 |
| Pet-Cv Ltd | Transport & logistics | 2025 |
| Petals & Pastries Ltd | Hospitality | 2022 |
| Petals of 85 Ltd | Wholesale & retail | 2026 |
| Petclick Ltd | Professional & scientific | 2018 |
| Pete & Jane Ltd | Arts & recreation | 2008 |
| Pete and Greg Limited | Wholesale & retail | 2018 |
| Peteks & SON Ltd | Hospitality | 2022 |
| Peteks B2B Ltd | Hospitality | 2024 |
| Peter Baker Motorcycles Direct Limited | Wholesale & retail | 2001 |
| Peter Bowden Sports Maintenance Ltd | Administrative & support | 2024 |
| Peter Braidley Consulting Ltd | Health & social care | 2019 |
| Peter Crown Associates Limited | Administrative & support | 2019 |
| Peter Emery Limited | Construction | 2014 |
| Peter Fenton Equine Veterinary Practice Limited | Professional & scientific | 2004 |
| Peter Hartley Limited | Construction | 1991 |
| Peter Hill Financial Services Limited | Financial services | 2009 |
| Peter Hoare & Company (Financial Services) Limited | Financial services | 1988 |
| Peter Hoare Professional Services Limited | Financial services | 2025 |
| Peter Motors Ltd | Wholesale & retail | 2011 |
| Peter S Richmond Ltd | Information & communication | 2023 |
| Peter Shale Electrical Limited | Construction | 2006 |
| Peter Skinner Minerals Ltd | Manufacturing | 2024 |
| Peter Ziga Couriers Limited | Transport & logistics | 2025 |
| Peterman Fork Lift Trucks Limited | Professional & scientific | 1999 |
| Petg Ltd | Construction | 2025 |
| Petra Consultant Ltd | Professional & scientific | 2024 |
| Petrake Ltd | Other services | 2019 |
| Petrasco Ltd | Professional & scientific | 2022 |
| Petre Construction Limited | Real estate | 1997 |
| Petre House Estates Limited | Extraterritorial | 2003 |
| Petre House Storage Ltd | Real estate | 2018 |
| Petre House Utilities Limited | Extraterritorial | 2025 |
| Petre Street Auto Garage Limited | Wholesale & retail | 2025 |
| Petre Street MOT Ltd | Wholesale & retail | 2026 |
| Petrie Catering Ltd | Hospitality | 2023 |
| Petriva Limited | Mining & quarrying | 2017 |
| Petrus Communications Limited | Professional & scientific | 2000 |
| Pets at Rest Veterinary Service Ltd | Real estate | 2018 |
| Pets Shop Limited | Wholesale & retail | 2021 |
| Pets-Kart Limited | Wholesale & retail | 2026 |
| Petz Zone Limited | Professional & scientific | 2010 |
| Peva (UK) Limited | Financial services | 2024 |
| Pevens Design Limited | Professional & scientific | 2025 |
| Peveril Property Services Limited | Real estate | 2015 |
| Pewit Developments Limited | Construction | 2025 |
| Pewit Holdings Limited | Financial services | 2025 |
| Pexton Fleming Limited | Construction | 2020 |
| Peyton Music Ltd | Information & communication | 2017 |
| PF Properties Limited | Real estate | 2021 |
| PFC Chippy Ltd | Hospitality | 2024 |
| PFL Psychiatry Limited | Health & social care | 2024 |
| PFM Properties Limited | Households | 2026 |
| PFM Riggers Limited | Professional & scientific | 2026 |
| PG Thornhill Limited | Construction | 2008 |
| PG1 Limited | Construction | 2017 |
| PG2 Limited | Construction | 2017 |
| PG4 Limited | Construction | 2017 |
| PG5 Limited | Construction | 2017 |
| PG7 Limited | Construction | 2017 |
| PG9 Limited | Construction | 2017 |
| PGB Developments Ltd | Construction | 2022 |
| PGB Joinery Ltd | Construction | 2025 |
| PGJ Green Shoots Limited | Health & social care | 2023 |
| PGL International Limited | Manufacturing | 2023 |
| PGS EMG Limited | Health & social care | 2020 |
| PGS Supplies 21 Ltd | Manufacturing | 2021 |
| PH Health Care Ltd | Health & social care | 2019 |
| PH Healthcare Solutions Ltd | Administrative & support | 2022 |