| Preece Morgan Investments Limited | Construction | 2020 |
| Prem Commercial Limited | Wholesale & retail | 1998 |
| Premier Artificial Lawns Limited | Construction | 2015 |
| Premier Building and Pools Limited | Construction | 2018 |
| Premier Court Management Company Limited | Households | 1987 |
| Premier Gate Automation Limited | Construction | 2005 |
| Premium Ability Limited | Administrative & support | 2021 |
| Premium Juice Ltd | Wholesale & retail | 2020 |
| Presentation Graphics Design Limited | Professional & scientific | 2011 |
| Pretty Green Solutions Limited | Professional & scientific | 2013 |
| Pretty Little Pooch Limited | Other services | 2022 |
| Primary Power Limited | Construction | 2016 |
| Prime Corporate Advisory Limited | Professional & scientific | 2017 |
| Prime Corporate Solutions Limited | Professional & scientific | 2014 |
| Prime CUT Diamond Drilling Ltd | Construction | 2025 |
| Prime Recoveries Ltd | Transport & logistics | 2026 |
| Prime Vent Limited | Manufacturing | 2021 |
| Prime-Assests Ltd | Real estate | 2025 |
| Primrose Construction Limited | Construction | 2005 |
| Primrose Creamery Ltd | Manufacturing | 2025 |
| Priory Place Developments Limited | Construction | 2021 |
| Prism XI Ltd | Professional & scientific | 2024 |
| Pristine Exterior Services Ltd | Administrative & support | 2026 |
| Private Drainage Limited | Water & waste | 2019 |
| Private Flight Concierge Ltd | Hospitality | 2021 |
| PRM Construction Ltd | Construction | 2025 |
| Pro Automatics Ltd | Wholesale & retail | 2025 |
| Pro K Services Ltd | Administrative & support | 2020 |
| Pro K Tax Limited | Professional & scientific | 2026 |
| Pro-Pools (Essex) Ltd | Construction | 2022 |
| Proassure Consulting Ltd | Professional & scientific | 2020 |
| Prodigy Limited | Extraterritorial | 2003 |
| Production Publicity Limited | Professional & scientific | 2001 |
| Profitable Sites Ltd | Professional & scientific | 2013 |
| Profix 1 Ltd | Construction | 2018 |
| Project 11 Productions Limited | Construction | 2017 |
| Project 2052 Limited | Wholesale & retail | 2023 |
| Project 3 Productions Limited | Construction | 2011 |
| Property Best Limited | Professional & scientific | 2018 |
| Property Group Services Ltd | Transport & logistics | 2017 |
| Property Success Insider Ltd | Real estate | 2017 |
| Propulsiontech.Investments Ltd | Financial services | 2025 |
| Prosper Accountancy Services Ltd | Professional & scientific | 2024 |
| Proudly Ghanaian Limited | Wholesale & retail | 2024 |
| Proven Lifestyle Limited | Wholesale & retail | 2025 |
| PS Technology Services Ltd | Information & communication | 2023 |
| PS4AV Ltd | Administrative & support | 2020 |
| Psychology.Investments Ltd | Financial services | 2025 |
| PT Fish Ltd | Wholesale & retail | 2023 |
| Pt-Ce Limited | Professional & scientific | 2006 |
| Pubs R US Limited | Hospitality | 2019 |
| Pulse Vision Ltd | Information & communication | 2019 |
| Pulspair Ltd | Health & social care | 2022 |
| Purple Leisure Services Limited | Other services | 2001 |
| Pursuit Payroll Ltd | Information & communication | 2012 |
| Pyro Protect Doors Limited | Construction | 2025 |
| Q Point Technical Services Ltd | Professional & scientific | 2020 |
| Quality Construction (South East) Limited | Construction | 2013 |
| Quant-Tec Limited | Professional & scientific | 2011 |
| Quantenesis Ltd | Manufacturing | 2025 |
| Quantumratio.Investments Ltd | Financial services | 2025 |
| Queen of Health Ltd | Health & social care | 2026 |
| Questae Ltd | Professional & scientific | 2024 |
| Quite Nice Pubs Ltd | Hospitality | 2025 |
| R & EM Properties Ltd | Real estate | 2024 |
| R & H Lingard Limited | Construction | 2025 |
| R & P Hygiene Limited | Financial services | 2025 |
| R & R Storage & Logistics Ltd | Transport & logistics | 2021 |
| R B Admin Solutions Limited | Administrative & support | 2024 |
| R B Flooring Solutions Limited | Construction | 2015 |
| R Bartlett Services Ltd | Professional & scientific | 2016 |
| R J Hodge & SON LLP | | 2007 |
| R J NIX (Electrical) Limited | Construction | 2008 |
| R Knight Limited | Information & communication | 1999 |
| R M Wilks Limited | Construction | 2008 |
| R Martin Trade Sales Limited | Wholesale & retail | 2022 |
| R V & Co. Ltd | Financial services | 2013 |
| R W Porter & Sons Limited | Construction | 2002 |
| R&S Edge Ltd | Real estate | 2025 |
| R. Ebsworth Brickwork Limited | Construction | 2003 |
| R. Martin Trade Supplies Ltd | Wholesale & retail | 2026 |
| R.C.P. Developments Limited | Construction | 1975 |
| R.D.Trading Limited | Information & communication | 1992 |
| R.T. Cooper Transport Limited | Transport & logistics | 2012 |
| R:D Hair & Beauty Salon Ltd | Other services | 2016 |
| Raas Hub Ltd | Wholesale & retail | 2025 |
| Racetech.Investments Ltd | Financial services | 2025 |
| Rachels Doggy Lodge Limited | Other services | 2024 |
| Radiance Solar Limited | Construction | 2011 |
| Radiant Design & Build Ltd | Construction | 2019 |
| Radiant Windows Limited | Administrative & support | 2013 |
| RAE Morris Music Limited | Arts & recreation | 2011 |
| Rae's Food House Ltd | Hospitality | 2024 |
| Rae's Island Ltd | Hospitality | 2024 |
| Rael Applied Intelligence Limited | Information & communication | 2025 |
| Raelest Global Services Limited | Administrative & support | 2025 |
| Raftul CU Carti Ltd | Wholesale & retail | 2023 |
| Ragazzi Belli (2026) Ltd | Hospitality | 2026 |
| Rage Cage Ltd | Arts & recreation | 2023 |
| Rail Innovations Ltd | Extraterritorial | 2019 |