| Precise Retail Solutions 1 LP | | 2012 |
| Precision ARC Ltd | Manufacturing | 2025 |
| Precision Creative and Media Ltd | Manufacturing | 2013 |
| Precision Pinpoint Limited | Information & communication | 2018 |
| Precision Training Consultancy Limited | Public administration | 2012 |
| Prem & Associates Ltd | Professional & scientific | 2021 |
| Premier Builds (South) Limited | Construction | 2016 |
| Premier Car (Services) Ltd | Administrative & support | 2012 |
| Premier Centre Management Limited | Real estate | 1988 |
| Premier Digital Ledgers Ltd | Professional & scientific | 2026 |
| Premier Electrical Contract Services Limited | Construction | 2009 |
| Premier Electrical Systems Ltd | Other services | 2017 |
| Premier Glass Projects Ltd | Construction | 2021 |
| Premier Group (Southern) Ltd | Other services | 2006 |
| Premier Hvac Systems Ltd | Construction | 2019 |
| Premier Physical Healthcare Ltd | Health & social care | 1997 |
| Premier Recycling Solutions Ltd | Wholesale & retail | 2011 |
| Premier Wooden Flooring Limited | Construction | 2012 |
| Premium Cleaning Ltd | Administrative & support | 2010 |
| Premium Commercial Solutions Ltd | Hospitality | 2024 |
| Premium Marquees Limited | Construction | 2012 |
| Premium Residential Ltd | Other services | 2016 |
| Premiumflooring Ltd | Other services | 2019 |
| Premlex Electrical Limited | Construction | 2015 |
| Premlex Holdings Limited | Financial services | 2023 |
| Premlex Limited | Manufacturing | 2015 |
| Premlex Properties Limited | Real estate | 2023 |
| Prep Medix Ltd | Education | 2025 |
| Prescot Specsavers Limited | Wholesale & retail | 2023 |
| Preserve and Protect Auto Care Limited | Wholesale & retail | 2025 |
| Presscrete Home Building Ltd | Construction | 2024 |
| Prest a Faire Limited | Construction | 2015 |
| Prestatyn Specsavers Limited | Wholesale & retail | 2004 |
| Prestatyn Visionplus Limited | Wholesale & retail | 2004 |
| Prestige Building Solutions Group Ltd | Construction | 2026 |
| Prestige Contractors Portal UK Limited | Professional & scientific | 2025 |
| Prestigestone Properties Ltd | Real estate | 2025 |
| Preston Domi Audiology Specsavers Limited | Wholesale & retail | 2023 |
| Preston Specsavers Hearcare Limited | Wholesale & retail | 2013 |
| Preston Specsavers Limited | Wholesale & retail | 1988 |
| Preston Visionplus Limited | Wholesale & retail | 1994 |
| Pretoria Enterprises 247 Ltd | Professional & scientific | 2025 |
| Pretty Clinic Limited | Other services | 2023 |
| Pretty Savage Jewellery Ltd | Wholesale & retail | 2022 |
| Preventice UK Ltd | Administrative & support | 2019 |
| Prichard Technical Services Limited | Construction | 2023 |
| Pricing I Ltd | Information & communication | 2025 |
| Prima S G H Limited | Administrative & support | 2010 |
| Prima Services Group Limited | Administrative & support | 1990 |
| Prime Broker Solutions Limited | Financial services | 2017 |
| Prime Cosmetics Ltd | Health & social care | 2021 |
| Prime Lettings and Property Management Limited | Real estate | 2014 |
| Prime Path Chauffeurs Ltd | Transport & logistics | 2024 |
| Prime Power Southern Limited | Construction | 2017 |
| Prime Restoration Ltd | Construction | 2020 |
| Prime Sites (Hampshire) Ltd | Construction | 2019 |
| Primedic Specialists Ltd | Health & social care | 2026 |
| Primepe Ltd | Information & communication | 2026 |
| Primer Glasgow Ltd | Construction | 2024 |
| Primer II Edinburgh Limited | Financial services | 2024 |
| Primer II Holdco 1 Limited | Financial services | 2024 |
| Primer II Holdco 2 Limited | Financial services | 2024 |
| Primera Community Care Limited | Extraterritorial | 2014 |
| Primera Healthcare Limited | Extraterritorial | 2014 |
| Primera Nursing Services Limited | Extraterritorial | 2014 |
| Primo Capitulo Wealth Management Limited | Extraterritorial | 2013 |
| Prince Gardening & Fencing Ltd | Professional & scientific | 2024 |
| Prince General Services Ltd | Water & waste | 2022 |
| Prince Plumbers Ltd | Construction | 2024 |
| Prince-Stone Property Ltd | Hospitality | 2017 |
| Principal Education Ltd | Information & communication | 2025 |
| Principal Estates (Southern) Ltd | Construction | 2020 |
| Principal Properties Limited | Real estate | 2016 |
| Principle Building Services Ltd | Construction | 2009 |
| Priority Corporation Limited | Construction | 1999 |
| Priory Court (Locksheath) NO.2 Residents Company Limited | Households | 1987 |
| Privilege Bristol Holdings Limited | Real estate | 2024 |
| Privilege Bristol Limited | Real estate | 2024 |
| Privilege L & S Limited | Financial services | 2021 |
| Privilege Midco Limited | Financial services | 2021 |
| Privilege Southampton Limited | Financial services | 2021 |
| Pro Class Recruitment Ltd | Administrative & support | 2023 |
| Pro EVO Scaffolding Limited | Construction | 2025 |
| Pro Point Brickwork Ltd | Construction | 2020 |
| Pro Sound Limited | Information & communication | 2003 |
| Pro-Coaching North Ltd | Education | 2022 |
| Pro-Ipsum Limited | Information & communication | 2023 |
| Pro-Janitorial Supplies Limited | Professional & scientific | 2002 |
| Pro-Tech Insulation Ltd | Construction | 2014 |
| Process and Control Engineering Limited | Other services | 1993 |
| Process Cooling Limited | Administrative & support | 2025 |
| Proctors Security Solutions Limited | Information & communication | 2014 |
| Procura London Ltd | Wholesale & retail | 2024 |
| Production & Development Services Ltd | Manufacturing | 2008 |
| Professional & Commercial Limited | Professional & scientific | 1986 |
| Professional Connection (South) Limited | Financial services | 1996 |
| Professional Connection Trustees Limited | Administrative & support | 2024 |
| Professional Magicians Limited | Arts & recreation | 2008 |
| Profitpath Recovery Ltd | Professional & scientific | 2025 |
| Profleet Van and Truck Maintenance Ltd | Wholesale & retail | 2025 |