| Payne Bros UK Ltd. | Wholesale & retail | 1958 |
| PBA Trading Limited | Administrative & support | 2008 |
| PDC Consulting 1968 Ltd | Financial services | 2013 |
| Pdub Media Co. Ltd | Information & communication | 2025 |
| Penn Communications Group Limited | Financial services | 2025 |
| Pennock Consulting Ltd | Professional & scientific | 2016 |
| Percy & Raggett Limited | Information & communication | 2019 |
| Perform Chepstow Ltd | Arts & recreation | 2023 |
| Performance Bonus Limited | Professional & scientific | 2001 |
| Peter Stephens Road Haulage Limited | Transport & logistics | 1990 |
| PHB Steel Consultants Ltd | Professional & scientific | 2015 |
| Phillips Auto Service Centre Ltd | Wholesale & retail | 2022 |
| Phillips of Devauden Limited | Agriculture & fishing | 2014 |
| Phillips Transport Limited | Agriculture & fishing | 1998 |
| Phoenix Spaces Investments Ltd | Real estate | 2025 |
| Piercefield Partnership Homes Limited | Construction | 2008 |
| Piercefield Properties Limited | Construction | 2014 |
| Piermont Management Company Limited | Households | 2004 |
| PIG and PIP Ltd | Wholesale & retail | 2021 |
| Pineborough Limited | | 1988 |
| Piran Agri Ltd | Financial services | 2020 |
| PL Geotechnical Limited | Construction | 2017 |
| Plan Engineering Limited | | 1990 |
| Platboom Ltd | Financial services | 2012 |
| Platform Severn Ltd | Wholesale & retail | 2018 |
| Platinum Technology Solutions Ltd | Information & communication | 2023 |
| Platinum Testing Systems Ltd | Information & communication | 2023 |
| Platinum Training Services Limited | Information & communication | 2003 |
| Plumbright Heating and Plumbing Services Ltd | Construction | 2010 |
| Plumbserv Ltd | Extraterritorial | 2013 |
| Pocket Rocket UK Ltd | Information & communication | 1999 |
| Polo DE Chats Ltd | Wholesale & retail | 2021 |
| Poppy Farrugia Ltd | Professional & scientific | 2026 |
| Porthcasseg Energy Ltd | Water & waste | 2014 |
| Povora Ltd. | Information & communication | 2020 |
| Powerful Wonders Ltd | Information & communication | 2010 |
| Premier Endoscopy Ltd | Health & social care | 2001 |
| Prestige Sporting (Yorkshire) Ltd | Arts & recreation | 2026 |
| Priestley Developments Limited | Construction | 2001 |
| Prime TCG Distribution Ltd | Wholesale & retail | 2026 |
| Primitive Studios Ltd. | Professional & scientific | 2014 |
| Pristine Lettings Ltd | Households | 2018 |
| Pristine Refurbishments Limited | Construction | 2019 |
| Pritchards at Live and LET Live Ltd | Hospitality | 2015 |
| Proceed Property Lettings Limited | Real estate | 2025 |
| Proceed Property Limited | Real estate | 2023 |
| Prodeal Limited | Professional & scientific | 2021 |
| Promec Engineering Ltd | Construction | 2008 |
| Properts Solicitor Estate Agents Limited | Real estate | 2012 |
| Property Renu Options Ltd | Hospitality | 2019 |
| Prosense Technology Limited | Information & communication | 2016 |
| Protech Events Ltd | Arts & recreation | 2016 |
| Protective Wall Coatings. Ltd | Construction | 2007 |
| PS Express Transport Limited | Transport & logistics | 2024 |
| Pulse HR Consulting Ltd | Professional & scientific | 2003 |
| Pure Lifting Investco Limited | Financial services | 2018 |
| QC Financial Management Limited | Professional & scientific | 2010 |
| Quantic Property Ltd | Real estate | 2019 |
| Quayside Salon Limited | Other services | 2019 |
| Questscape (Management) Limited | Real estate | 2001 |
| Questscape Limited | Real estate | 1999 |
| Quynh & Co Chepstow Ltd | Other services | 2025 |
| R & J Sales Ltd | Wholesale & retail | 2024 |
| R a Carne Technical Services Limited | Professional & scientific | 2008 |
| R B Skip Hire Limited | Water & waste | 1999 |
| R M & J H Bailey LLP | | 2015 |
| R W Holdings Services Ltd | Administrative & support | 2019 |
| R.J. Lewin & Co. Limited | Extraterritorial | 2003 |
| Racecourse Haulage (Chepstow) Limited | Transport & logistics | 2015 |
| Raffelle Shah Holdings Ltd | Wholesale & retail | 2023 |
| Rapidvogue Limited | Professional & scientific | 1989 |
| Raptor Plant Ltd | Wholesale & retail | 2021 |
| Rapture UK Events Ltd | Arts & recreation | 2025 |
| RAS Electrics Ltd | Construction | 2017 |
| Ravensnest FLY Fishery Limited | Agriculture & fishing | 2017 |
| RB Services (SW) Ltd | Construction | 2024 |
| Red Shoes Across Europe Limited | Transport & logistics | 2014 |
| Reecer Group Ltd | Professional & scientific | 2015 |
| Reecer Hire Limited | Administrative & support | 2009 |
| Reecer Portable Buildings Limited | Extraterritorial | 2012 |
| Reecer Properties Ltd | Real estate | 2021 |
| Reecer Rentals Ltd | Extraterritorial | 2023 |
| Reecer Space Ltd | Construction | 2003 |
| Refaceit Interiors Limited | Construction | 2009 |
| Reid Lifting Holdings Limited | Financial services | 2013 |
| Reid Lifting Limited | Manufacturing | 1999 |
| Remote First AID and Pre-Hospital Training Ltd | Other services | 2020 |
| Retail Cost Control Ltd | Construction | 2014 |
| Retic Systems Ltd | Mining & quarrying | 2023 |
| Retro Bridge Limited | Construction | 2012 |
| RH Garden Maintenance and Repairs Ltd | Administrative & support | 2025 |
| RHJ Investments Limited | Real estate | 2023 |
| Rhydda Projects Limited | Professional & scientific | 2024 |
| Ricard Kitchens Limited | Wholesale & retail | 2014 |
| Richard Kopp Plumbing and Heating Limited | Construction | 2025 |
| Richbake Limited | Hospitality | 2015 |
| Ride and Stride Limited | Wholesale & retail | 2002 |
| Rikaxxe Limited | Extraterritorial | 2013 |
| RIO Grande Enterprises Limited | Real estate | 2022 |
| Riverside B&B Ltd | Hospitality | 2017 |