| Precision Flow Limited | Manufacturing | 2003 |
| Precision Plumbing HW Ltd | Construction | 2025 |
| Precision Radiology Ltd | Health & social care | 2022 |
| Precision Spaces Ltd | Real estate | 2016 |
| Premier Builders Bucks Limited | Construction | 2025 |
| Premier Diamond Drilling Services Limited | Mining & quarrying | 2004 |
| Premier Express Couriers Limited | Transport & logistics | 1999 |
| Premier Habitat Ltd | Real estate | 2019 |
| Premier Homes London Limited | Real estate | 2017 |
| Premier Ingredients Limited | Wholesale & retail | 2012 |
| Premier Packaging and Design International Limited | Professional & scientific | 2009 |
| Premier Tiles & Bathrooms UK Ltd | Wholesale & retail | 2020 |
| Premier Tyres Ltd | Wholesale & retail | 2025 |
| Premier Window Cleaning Specialists Ltd | Administrative & support | 2024 |
| Premiere Care (NE) Limited | Health & social care | 2010 |
| Premiss Consultancy Ltd | Professional & scientific | 2019 |
| Premium Cleaners by Adriana Ltd | Administrative & support | 2023 |
| Premium Deals Limited | Wholesale & retail | 2025 |
| Premium Hotel Supplies Ltd | Wholesale & retail | 2025 |
| Premium Medical Billing Ltd | Administrative & support | 2019 |
| Premium Minibuses & Cars Limited | Transport & logistics | 1995 |
| Premium Pads Ltd | Real estate | 2011 |
| Premium Watches Limited | Wholesale & retail | 2025 |
| Press Express Limited | Other services | 2016 |
| Prestiage Constructions Limited | Construction | 2025 |
| Prestige Autoworks Ltd | Wholesale & retail | 2019 |
| Prestige Planners Ltd | Administrative & support | 2025 |
| Prestige Property Transformations Limited | Construction | 2025 |
| Prestige Revival Ltd | Construction | 2025 |
| Prestige Valet & Detailing Ltd | Administrative & support | 2022 |
| PRESTIGE21 Limited | Administrative & support | 2023 |
| Prestoplan Limited | Manufacturing | 1998 |
| Prestwood Bathroom Designs Ltd | Construction | 2025 |
| Prestwood Estates 1 Ltd | Construction | 2026 |
| Prestwood Homes Ltd | Hospitality | 2022 |
| Prestwood Property Limited | Construction | 2002 |
| Pretty Deep Ltd | Professional & scientific | 2024 |
| Pretzel Project Ltd | Wholesale & retail | 2023 |
| PRG Real Estate Ltd | Real estate | 2021 |
| Priaan Ltd | Real estate | 2018 |
| Price's Canine Academy Limited | Other services | 2024 |
| Pride Installations Ltd | Construction | 1998 |
| Prideaux Asset Limited | Construction | 2014 |
| Prima Cloud Solutions Ltd | Other services | 2019 |
| Prima Technology Ltd | Manufacturing | 2012 |
| Primarc (Marketing) Limited | Extraterritorial | 2012 |
| Prime Autos Wycombe Ltd | Wholesale & retail | 2023 |
| Prime Cars (HW) Ltd | Transport & logistics | 2020 |
| Prime Choice Security Limited | Administrative & support | 2019 |
| Prime Civil Engineering Projects Ltd | Construction | 2025 |
| Prime Holding Spark Ltd | Hospitality | 2024 |
| Prime Investment (HW) Limited | Real estate | 2020 |
| Prime Jamaican Patties Ltd | Manufacturing | 2016 |
| Prime Media Images Limited | Professional & scientific | 2015 |
| Prime Medical Management Ltd | Administrative & support | 2024 |
| Prime Numbers (UK) Limited | Professional & scientific | 2003 |
| Prime Numbers Payroll Services Limited | Professional & scientific | 2005 |
| Prime Pizza (HW) Limited | Hospitality | 2018 |
| Prime Powder Coating Ltd | Manufacturing | 2023 |
| Prime Property Living Ltd | Real estate | 2020 |
| Prime Victory Enterprise Limited | Wholesale & retail | 2026 |
| Prime+ Tutoring (HW) Ltd | Education | 2026 |
| Primeclean Waste Solutions Ltd | Administrative & support | 2025 |
| Primee Capital Ltd | Real estate | 2023 |
| Primero Limited | Administrative & support | 1997 |
| Primetech Security Solutions Ltd | Administrative & support | 2021 |
| Primexis Solutions Ltd | Information & communication | 2026 |
| Primrose Software Limited | Information & communication | 2025 |
| Prinsloo Ltd | Information & communication | 2025 |
| Printkick Limited | Wholesale & retail | 2002 |
| Printovation Ltd | Professional & scientific | 2014 |
| Priority Financial Planning Limited | Financial services | 1963 |
| Prism Communications UK Ltd | Professional & scientific | 2008 |
| PRM Landscapes Limited | Administrative & support | 2020 |
| Pro Builders P Ltd | Construction | 2026 |
| Pro EVO Limited | Administrative & support | 2022 |
| Pro Response Maintenance Ltd | Construction | 2025 |
| Pro Site Cleaners Ltd | Administrative & support | 2023 |
| Pro UV Lamps Limited | Wholesale & retail | 1972 |
| Pro Workspace Ltd | Wholesale & retail | 2025 |
| Pro-Am Performance Ltd | Education | 2024 |
| Proactive Edge Ltd | Wholesale & retail | 2019 |
| Proactivepam Ltd | Health & social care | 2022 |
| Procare Cleaning Limited | Other services | 2016 |
| Procare Excel Limited | Other services | 2003 |
| Procivis Ltd | Professional & scientific | 2024 |
| Procom IT Limited | Information & communication | 2012 |
| Prodarb Ltd | Wholesale & retail | 2023 |
| Prodigo Ltd | Professional & scientific | 2023 |
| Product Angel Limited | Administrative & support | 2018 |
| Product Organisation Ltd | Professional & scientific | 2025 |
| Proeco Services Ltd | Construction | 2018 |
| Prof Mims Entertainment Ltd | Professional & scientific | 2025 |
| Professional Print Services Ltd | Manufacturing | 2017 |
| Progreen Artificial Grass Ltd | Administrative & support | 2025 |
| Progreen Waste Removal Ltd | Water & waste | 2026 |
| Progressive Plastering Solutions Ltd | Construction | 2019 |
| Project and PMO Consulting Limited | Information & communication | 2015 |
| Project Clean Ltd | Administrative & support | 2025 |
| Project Electrical Services Limited | Construction | 2015 |