| Party Time Entertainments Ltd | Administrative & support | 2023 |
| Parvathi Collection Ltd | Wholesale & retail | 2026 |
| Pastures Investments Limited | Real estate | 2023 |
| Patgib Investments Limited | Real estate | 2014 |
| Patricia Maria Ltd | Professional & scientific | 2020 |
| Patsabout Locks Limited | Manufacturing | 2023 |
| Paul Brown Labouring Limited | Construction | 2018 |
| Paul Bunyan Flooring Ltd | Construction | 2014 |
| Paul Hewer Catering Limited | Hospitality | 2024 |
| Paulina Ltd | Transport & logistics | 2016 |
| Pavelescu D Transport Ltd | Transport & logistics | 2018 |
| Pawel Szafranek Ltd | Transport & logistics | 2021 |
| Paws for a Break Limited | Hospitality | 2024 |
| Paxton Property Group Ltd | Hospitality | 2024 |
| PAY ME in Bitcoin OR Etherum Ltd | Wholesale & retail | 2025 |
| Payspark Limited | Professional & scientific | 2025 |
| PC4YC Limited | Professional & scientific | 2000 |
| PCM Automotive Limited | Wholesale & retail | 2023 |
| PCW Investments (Northants) Ltd | Real estate | 2026 |
| PD Dental Ltd | Health & social care | 2026 |
| PDH Project Management Limited | Professional & scientific | 2014 |
| PDL Aero Solutions Ltd | Manufacturing | 2022 |
| Pdmg Ltd | Construction | 2026 |
| PDP Ventures Ltd | Wholesale & retail | 2025 |
| PDS Carpentry Services Limited | Construction | 2003 |
| Peach & Poppy Ltd | Manufacturing | 2025 |
| Peak Property Group Limited | Real estate | 2022 |
| Pearl Spark Limited | Wholesale & retail | 2025 |
| Pearls Pet Supplies Limited | Wholesale & retail | 2025 |
| Pebble Play UK Ltd | Health & social care | 2023 |
| Pebbly Limited | Extraterritorial | 2019 |
| PEC People Development Limited | Professional & scientific | 2022 |
| PED Technologies Limited | Manufacturing | 1975 |
| Pedersen Contracting Services Ltd | Manufacturing | 1976 |
| Pehlay Limited | Financial services | 2017 |
| Pemberley's of Baker Street Ltd | Manufacturing | 2021 |
| Pembroke Public Relations Limited | Professional & scientific | 2004 |
| Pendale Project Management Limited | Professional & scientific | 2025 |
| Pender Carpentry Ltd | Construction | 2018 |
| Penistone Park Estates Limited | Real estate | 2019 |
| Pentagon Park Management Company Limited | Other services | 2005 |
| Penther Property Holdings Limited | Real estate | 1999 |
| People and Transformational HR Limited | Professional & scientific | 2013 |
| Peopleserve Plumbing Ltd | Construction | 2026 |
| Peps International Ltd | Wholesale & retail | 1990 |
| Percept AI Ltd | Professional & scientific | 2025 |
| Perdix Land Limited | Administrative & support | 2014 |
| Perfectly Matched Wedding Services Limited | Administrative & support | 2024 |
| Performance Sailcraft Europe Limited | Manufacturing | 2024 |
| Perpetual Bliss Ltd | Transport & logistics | 2022 |
| Perrettjay Ltd | Construction | 2020 |
| Perutz Investments Limited | Real estate | 2014 |
| Perutz Property Partnership LLP | | 2003 |
| Pestwise Pest Control Limited | Administrative & support | 2026 |
| Pete George Ltd | Transport & logistics | 2019 |
| Peter B George Limited | Wholesale & retail | 2024 |
| Petexpert Services Ltd | Professional & scientific | 2023 |
| Petrachi Cleaning Ltd | Administrative & support | 2025 |
| Petslove UK Ltd | Agriculture & fishing | 2025 |
| PEV Parts Limited | Wholesale & retail | 2022 |
| PF Immigration Services Ltd | Information & communication | 2022 |
| Pgna Ltd | Financial services | 2023 |
| PGS Gifts Ltd | Wholesale & retail | 2011 |
| Ph&M(Uk) Ltd | Other services | 2020 |
| Pham Food Services Ltd. | Manufacturing | 2015 |
| Phamgroup Property Ltd | Real estate | 2024 |
| Phase 3 Electrical Solutions Ltd | Construction | 2026 |
| Phiack Ltd | Real estate | 2024 |
| Phil & Sons Properties Limited | Real estate | 2023 |
| Phil Bonar Limited | Professional & scientific | 2021 |
| Phil Wade Ltd | Professional & scientific | 2012 |
| Philip Court (Little Harrowden) Residents Association Limited | Real estate | 1982 |
| Philix Global Services Limited | Wholesale & retail | 2024 |
| Phoenix Growth & Coaching Limited | Education | 2025 |
| Phoenix Health LLP | | 2008 |
| Phoenix Painting & Spraying Contractors Ltd | Wholesale & retail | 2023 |
| Phoenix Pro Management Limited | Professional & scientific | 2017 |
| Phoenix Property Care & Maintenance Ltd | Construction | 2020 |
| PHYSIO&HEALTH4ALL Limited | Health & social care | 2015 |
| Physique Collective Limited | Information & communication | 2021 |
| Pile Driver UK Limited | Wholesale & retail | 2026 |
| Pine Trees Village Management Limited | Administrative & support | 1987 |
| Pineapple Digital Marketing Limited | Wholesale & retail | 2019 |
| Pinecrest Homes Limited | Construction | 2026 |
| Pink Arrivals Ltd | Wholesale & retail | 2025 |
| Pink Moon Productions Limited | Information & communication | 2004 |
| Pink Noodles Ltd | Professional & scientific | 2025 |
| Pinnacle Windows Installations Ltd | Construction | 2022 |
| Pinnacle Windows Ltd | Manufacturing | 2019 |
| Pintea Construction Ltd | Construction | 2022 |
| Piotr Duda Ltd | Transport & logistics | 2025 |
| Pipiras Ltd | Wholesale & retail | 2026 |
| Piquant Limited | Manufacturing | 1986 |
| Pirvuletu Ltd | Transport & logistics | 2015 |
| Pishdar Hand Car Wash Ltd | Other services | 2018 |
| PJ Asbestos Consultants Ltd | Administrative & support | 2017 |
| PJ Security K9 Ltd | Administrative & support | 2021 |
| PJR Rising Phoenix Tattoo Limited | Other services | 2019 |
| PKS Associates Financial Services Ltd | Financial services | 2013 |
| Places 2B Limited | Hospitality | 2020 |