| P.W.Pawlak Ltd. | Construction | 2016 |
| PA Computers Limited | Information & communication | 2001 |
| PA Family Holdings Ltd | Financial services | 2025 |
| Paben Limited | Extraterritorial | 1997 |
| Pablo Studios Ltd | Information & communication | 2022 |
| Pacific Food Trading Holdings Limited | Financial services | 2026 |
| Pacific Food Trading Ltd | Wholesale & retail | 2016 |
| Packaging Innovations UK Limited | Administrative & support | 2008 |
| Packham Services (South East) Ltd | Construction | 2018 |
| Packtastic Ltd | Administrative & support | 2023 |
| Paddle Nation UK Ltd | Arts & recreation | 2025 |
| Paddy Aviation Limited | Extraterritorial | 2024 |
| Padlock and Chain Limited | Manufacturing | 2016 |
| Padstone Construction Group Ltd | Construction | 2023 |
| PAE Plumbing & Heating Limited | Construction | 2013 |
| Paediatric Neuro Developmental Assessment Services Ltd | Health & social care | 2024 |
| Page 57 Ltd | Administrative & support | 2016 |
| Page Enterprises (UK) Ltd | Professional & scientific | 2010 |
| Pageant Ltd | Professional & scientific | 2009 |
| Pagefern Limited | Real estate | 1999 |
| Pages Schoolwear Limited | Wholesale & retail | 2009 |
| Pain Consortium Limited | Health & social care | 2014 |
| Painspecialist Limited | Health & social care | 2013 |
| Paint IT Better Ltd | Construction | 2023 |
| Paje Property Limited | Real estate | 2023 |
| PAK Logistics and Solutions Ltd | Transport & logistics | 2025 |
| Palace Estates (Developments) Limited | Construction | 2024 |
| Palace Estates Limited | Construction | 1986 |
| Paladi Recruitment Limited | Information & communication | 2018 |
| Palagate Properties Limited | Construction | 1988 |
| Pallet Source UK Ltd | Manufacturing | 2020 |
| Palm Lily Care Ltd | Health & social care | 2025 |
| Palmer Tabor Properties UK Limited | Real estate | 2021 |
| Palmer Works S Limited | Wholesale & retail | 2013 |
| Palmers Marine Services Limited | Transport & logistics | 2009 |
| Pama Consultancy Limited | Health & social care | 2013 |
| Panacea Hub Limited | Information & communication | 2022 |
| Panbridge Construction Limited | Construction | 1996 |
| Pangaea Films Limited | Information & communication | 2022 |
| Pangeaofficial Ltd | Wholesale & retail | 2026 |
| Panthera Contractors Limited | Construction | 2025 |
| Paper & Juice Management Ltd | Real estate | 2015 |
| Paper KID Music Group Limited | Information & communication | 2016 |
| Paper Plane Agency Ltd | Professional & scientific | 2025 |
| Paphitis Ltd | Financial services | 2025 |
| Parabellum Eventus Ltd | Arts & recreation | 2022 |
| Paracrux Ltd | Information & communication | 2026 |
| Paradigm Growth Consulting Limited | Professional & scientific | 2025 |
| Paradym Group Ltd | Administrative & support | 2024 |
| Paragon Health & Protection Limited | Financial services | 2015 |
| Paramount Dent Repair Ltd | Wholesale & retail | 2023 |
| Parawatrans Ltd | Transport & logistics | 2018 |
| Park Glass Ltd | Wholesale & retail | 2016 |
| Parkandersen Ltd | Administrative & support | 2018 |
| Parkhall Asset Management Ltd | Real estate | 2012 |
| Parkhall Estates (Securities) Limited | Real estate | 2011 |
| Parkhouse Construction Limited | Construction | 2008 |
| Parks and Lucette Limited | Professional & scientific | 2009 |
| Parksec Investments Ltd | Real estate | 2012 |
| Parksec Real Estate Investments Limited | Real estate | 2011 |
| Parkwood Community Sports Centre Limited | Arts & recreation | 2025 |
| Parkwood Hand Car Wash Ltd | Administrative & support | 2022 |
| Parlie Ltd | Information & communication | 2019 |
| Parmatt Limited | Real estate | 2006 |
| Parris Coaching & Consultancy Ltd | Professional & scientific | 2023 |
| Parris Financial Planning Ltd | Professional & scientific | 2014 |
| Pars Supermarket Limited | Wholesale & retail | 2024 |
| Parsons Mechanical Ltd | Professional & scientific | 2023 |
| Partnerise Ltd | Wholesale & retail | 2013 |
| Partners of Research Ltd | Administrative & support | 2013 |
| Pashe Homes Ltd | Real estate | 2023 |
| Pashe Solutions Limited | Construction | 2018 |
| Pasquale Hairdressers Limited | Other services | 2011 |
| Pastafest Ltd | Hospitality | 2021 |
| Pat-Stin Limited | Transport & logistics | 2019 |
| Patch Project Solutions Limited | Construction | 2026 |
| Pateman Construction Ltd | Construction | 2000 |
| Pathways Counselling Limited | Health & social care | 2022 |
| Pathways Matter CIC | Health & social care | 2026 |
| Patient Essentials Ltd | Health & social care | 2017 |
| Patramus Delivery Limited | Professional & scientific | 2023 |
| Patrick Gleeson | Construction | 2004 |
| Patterson Till Properties Ltd | Construction | 2022 |
| Paul Armstrong Ltd | Professional & scientific | 2015 |
| Paul Arthurs Food Management Services Limited | Professional & scientific | 2015 |
| Paul Baker Jointing Services Limited | Construction | 2020 |
| Paul Gardner Design Ltd | Professional & scientific | 2014 |
| Paul Gaskell Consultancy Limited | Professional & scientific | 2014 |
| Paul Gavril Trans Ltd | Transport & logistics | 2023 |
| Paul Goddard Plumbing and Heating Services Limited | Construction | 2010 |
| Paul Goddard Properties Limited | Real estate | 2004 |
| Paul Mackie Plastering Contractors Limited | Construction | 2011 |
| Paul Mill Television Limited | Wholesale & retail | 2003 |
| Paul Noble & Kai-Ti Noble Services Ltd | Education | 2018 |
| Paul Noble Languages Ltd | Wholesale & retail | 2009 |
| Paul Poole Mountaineering Limited | Arts & recreation | 2017 |
| Paul RAY Construction Limited | Construction | 2002 |
| Paul Wallis Financial Solutions Limited | Financial services | 2010 |
| Paul Winter Property Maintenance & Refurbishment Ltd | Construction | 2011 |
| Paul&Paula Limited | Real estate | 2021 |