| Premier Minibus Travel Limited | Transport & logistics | 2021 |
| Premier Panel Skills Limited | Wholesale & retail | 2008 |
| Premier Professional Services Ltd | Professional & scientific | 2006 |
| Premier Tyres Autocentre Ltd | Wholesale & retail | 2025 |
| Premiss Limited | Financial services | 2001 |
| Premium Discounts Limited | Wholesale & retail | 2023 |
| Premium Pro Vehicles & Rentals Ltd | Wholesale & retail | 2024 |
| Premium Stone Installations Ltd | Manufacturing | 2025 |
| Prepco Travel Ltd | Administrative & support | 2023 |
| Present YOU Ltd | Wholesale & retail | 2026 |
| Presscraft (Components) Limited | Manufacturing | 1986 |
| Pressing Matter Events Ltd | Arts & recreation | 2017 |
| Prestige Mobile Catering Ltd | Hospitality | 2019 |
| Prestige Properties Midlands Ltd | Construction | 2025 |
| Preston Services Ltd | Health & social care | 2024 |
| Pretty Good Coffee Ltd | Hospitality | 2026 |
| Prettyfabulous Ltd | Professional & scientific | 2017 |
| PRG Rendering Ltd | Construction | 2022 |
| PRH Engineering Solutions Limited | Professional & scientific | 2022 |
| Price Havens Ltd | Hospitality | 2025 |
| Price Property and Development Ltd | Real estate | 2022 |
| Pricelynx Limited | Other services | 1995 |
| Prima 200 Fundco NO 1 Limited | Real estate | 2004 |
| Prima 200 Fundco NO 2 Limited | Real estate | 2007 |
| Prima 200 Fundco NO 3 Limited | Construction | 2010 |
| Prima 200 Limited | Financial services | 2004 |
| Primary Industrial Properties Ltd | Real estate | 2015 |
| Primary Industrial Properties Malvern Ltd | Other services | 2022 |
| Primarycare-Scanning (Worcs) Ltd | Health & social care | 2019 |
| Prime (GB) Holdings Limited | Financial services | 2012 |
| Prime (UK) Developments Limited | Construction | 1996 |
| Prime (UK) Holdings PLC | Financial services | 2010 |
| Prime (UK) Investments Limited | Real estate | 1999 |
| Prime Adanac Investment Limited | Real estate | 2022 |
| Prime Business Utilities Limited | Energy | 2020 |
| Prime Care Home Developments 3 Limited | Real estate | 2017 |
| Prime Care Home Developments Limited | Extraterritorial | 2016 |
| Prime Company Secretarial Services Limited | Administrative & support | 2020 |
| Prime Contractor Framework Management Co. Limited | Construction | 2016 |
| Prime Infrastructure Limited | Extraterritorial | 2011 |
| Prime Infrastructure Management Services 2 Limited | Construction | 2018 |
| Prime Infrastructure Management Services 3 Limited | Construction | 2018 |
| Prime Infrastructure Management Services 4 Limited | Construction | 2020 |
| Prime Infrastructure Management Services Limited | Extraterritorial | 2010 |
| Prime Insight Limited | Professional & scientific | 2006 |
| Prime Investment Worcester Limited | Real estate | 2016 |
| Prime Lift Investments Limited | Financial services | 2004 |
| Prime MIX Marketing Ltd | Professional & scientific | 2013 |
| Prime Operations Limited | Financial services | 2010 |
| Prime Panels Group Ltd | Manufacturing | 2023 |
| Prime Partnering Solutions Limited | Financial services | 2014 |
| Prime PLC | Real estate | 1997 |
| Prime Public Infrastructure Limited | Extraterritorial | 2010 |
| Prime Public Partnerships 2000 Limited | Extraterritorial | 2000 |
| Prime Quality Automotive Parts Ltd | Wholesale & retail | 2025 |
| Prime Refinance Limited | Construction | 1999 |
| Prime Stop Ltd | Wholesale & retail | 2025 |
| Prime Structured Finance Limited | Extraterritorial | 2006 |
| Primo Legalis Ltd | Administrative & support | 2013 |
| Primo Pizza Limited | Hospitality | 2025 |
| Primrose Drive Management Company Limited | Households | 2000 |
| Primum Regnum DEI Limited | Health & social care | 2016 |
| Print TEC UK Ltd | Administrative & support | 2015 |
| Printfuture Limited | Information & communication | 2011 |
| Priority - Quality Consulting Limited | Professional & scientific | 2024 |
| Priors Court Limited | Agriculture & fishing | 1997 |
| Prism Accountants Ltd | Professional & scientific | 2024 |
| Prism Software (GB) Ltd | Information & communication | 2013 |
| Pristine Panel Work Limited | Manufacturing | 2017 |
| Pro Clean Repairs Ltd | Construction | 2026 |
| Pro Drive Recruitment Consultants Limited | Administrative & support | 2022 |
| Pro Schutz Limited | Extraterritorial | 2001 |
| Pro Style Barbers Ltd | Other services | 2024 |
| Pro Temp Staff Solutions Ltd | Administrative & support | 2025 |
| Pro-Comm Business Solutions Ltd | Information & communication | 2005 |
| Probam Healthcare Solutions Ltd | Health & social care | 2022 |
| Probert Plant & Haulage Limited | Agriculture & fishing | 2010 |
| Probus Information Centre Limited | Other services | 2010 |
| Probus Media Services Limited | Information & communication | 2013 |
| Process Flow Components Limited | Wholesale & retail | 1996 |
| Processio Solutions Ltd | Professional & scientific | 2019 |
| Procore Global Services Ltd | Transport & logistics | 2025 |
| Prodevco Limited | Construction | 2017 |
| Prodromos Consulting Ltd | Information & communication | 2017 |
| Proffood Ltd | Hospitality | 2024 |
| Profit Through Change Ltd | Professional & scientific | 2004 |
| Profits Unfiltered Ltd | Professional & scientific | 2026 |
| Profix Interiors Limited | Extraterritorial | 2016 |
| Prohireaudio Ltd | Administrative & support | 2025 |
| Project Gems Limited | Administrative & support | 2008 |
| Project in Mind Ltd | Professional & scientific | 1999 |
| Project ZER0 Limited | Construction | 2023 |
| PROJECT36 Limited | Professional & scientific | 2016 |
| Projects 2000 (Bickenhill)Limited | Real estate | 2006 |
| Prokata Limited | Professional & scientific | 2010 |
| Promanco Limited | Real estate | 2008 |
| Promedx Limited | Administrative & support | 2023 |
| Pronto Care Midlands Limited | Wholesale & retail | 2020 |
| Pronto Marketing Ltd | Professional & scientific | 2023 |
| Proof Technologies Limited | Information & communication | 2002 |