| Project Planning and Scheduling Services Limited | Administrative & support | 2013 |
| Project Wonderward Ltd | Professional & scientific | 2024 |
| Prolynx Ltd | Wholesale & retail | 2026 |
| Proper Legal Payne Ltd | Hospitality | 2025 |
| Property and Land Acquisitions Ltd | Construction | 2011 |
| Property Escapes (SW) Limited | Real estate | 2025 |
| Property Link Consultants Ltd | Professional & scientific | 2009 |
| Property Link Modular - Move Ltd | Real estate | 2018 |
| Property Link One Stop Ltd | Information & communication | 2021 |
| Property Link UK (South) Limited | Real estate | 1998 |
| Property Rose Solutions Limited | Administrative & support | 2024 |
| Property Services (Incorporated) Ltd | Real estate | 2013 |
| Proplanen Limited | Extraterritorial | 2015 |
| Prospect Recovery CIC | Hospitality | 2025 |
| Prospective Digital Ltd | Professional & scientific | 2024 |
| Prospera Security Consultancy Ltd | Administrative & support | 2023 |
| Prospira Realty Solutions Ltd | Real estate | 2024 |
| Prossers (WSM) Limited | Wholesale & retail | 2017 |
| Protech Global Limited | Manufacturing | 2016 |
| Protege Computers Limited | Wholesale & retail | 2014 |
| Protegimus Solutions Ltd | Administrative & support | 2015 |
| Protemp Staffing Limited | Administrative & support | 2014 |
| Proteus Support Ltd | Information & communication | 2014 |
| PT Lucky 7 Limited | Professional & scientific | 2015 |
| Ptiana Ltd | Health & social care | 2022 |
| PTR Trans 1994 Ltd | Transport & logistics | 2019 |
| Puddle Weld Resto's Ltd | Wholesale & retail | 2025 |
| PUG Media Ltd | Information & communication | 2017 |
| Pull Vault Cards Ltd | Wholesale & retail | 2026 |
| Puls Global Limited | Information & communication | 2010 |
| Puppy Playcation Ltd | Other services | 2023 |
| Pure Conservatory Solutions Limited | Construction | 2019 |
| Pure Flow Essentials Ltd | Wholesale & retail | 2026 |
| Pure Shine Valeting Services Ltd | Administrative & support | 2025 |
| Pureable Cleaning Ltd | Administrative & support | 2020 |
| Pureessence Care Ltd | Health & social care | 2025 |
| Purn Farm (B&B) Ltd | Real estate | 2025 |
| Purple Griffin Communications Consultancy Limited | Professional & scientific | 2026 |
| Purplex Marketing Ltd | Professional & scientific | 2012 |
| Purposejob Ltd | Administrative & support | 2023 |
| Puxton Developments Limited | Construction | 2001 |
| Puxty Properties Ltd | Households | 2017 |
| PVA Consultancy Limited | Administrative & support | 2006 |
| Pvtransport Ltd | Transport & logistics | 2023 |
| PYE Telecom Limited | Manufacturing | 2012 |
| Q & Z Food Ltd | Hospitality | 2025 |
| Q H Foods Ltd | Hospitality | 2019 |
| Q1 Cost Consultancy Limited | Professional & scientific | 2022 |
| QA Arrange Limited | Information & communication | 2017 |
| QAC Holdings Ltd | Financial services | 2024 |
| QED Chemicals Ltd | Manufacturing | 2008 |
| Qonectu Ltd | Professional & scientific | 2022 |
| QP Consultants Ltd | Professional & scientific | 2007 |
| Quad Investments (U.K.) Limited | Real estate | 2014 |
| Quadrant Contract Floorings Limited | Construction | 1993 |
| Quantock Caravan Services Limited | Transport & logistics | 1998 |
| Quantock Carpentry & Building Ltd | Construction | 2025 |
| Quantock Court Management Company Limited | Administrative & support | 1986 |
| Quantock Property Group Ltd | Real estate | 2026 |
| Quantock Voice Solutions Ltd | Information & communication | 2001 |
| Quantqual Investment Consultants Ltd | Professional & scientific | 2024 |
| Quantum Survey & Project Management Limited | Professional & scientific | 2015 |
| Quay Data Analysis Limited | Professional & scientific | 2013 |
| Quick Connect Electrical Ltd | Manufacturing | 2022 |
| Quick KIT Build Ltd | Construction | 2019 |
| Quick Serve Ltd | Hospitality | 2023 |
| Quietsphere Ltd | Other services | 2014 |
| Quigs Quigley Ltd | Professional & scientific | 2021 |
| Quinneth Ltd | Administrative & support | 2019 |
| QXQ Ltd | Real estate | 2024 |
| R & I Scaffolding Ltd | Construction | 2026 |
| R & R Hodges Ltd | Extraterritorial | 2018 |
| R & W Properties Weston Limited | Real estate | 2014 |
| R Bedrock Ltd | Real estate | 2016 |
| R COX Plumbing and Heating Limited | Construction | 2021 |
| R E & R Bennett Limited | Agriculture & fishing | 2006 |
| R Lebioda Ltd | Transport & logistics | 2017 |
| R M R Property Services Ltd | Construction | 2022 |
| R R & a Limited | Information & communication | 2016 |
| R S White Limited | Construction | 2002 |
| R&D Pharmaceuticals Ltd | Wholesale & retail | 2023 |
| R&D Productions Limited | Information & communication | 2017 |
| R&L Supplies Limited | Wholesale & retail | 2023 |
| R&R Convenience Ltd | Wholesale & retail | 2024 |
| R&R Interior Constructions Ltd | Construction | 2025 |
| R&W Clifton Ltd | Real estate | 2025 |
| R. a. 3. Property Ltd | Real estate | 2020 |
| R.E.Page Engineering Co.Limited | Manufacturing | 1967 |
| RA Rentals Limited | Real estate | 2023 |
| Rachel J Homes Limited | Real estate | 2012 |
| Radcliffe Consultancy Services Ltd | Professional & scientific | 2016 |
| Raffball Ltd | Wholesale & retail | 2019 |
| Raines Agricultural Holdings Limited | Financial services | 2022 |
| Raleigh Court Management Company (W.S.M.) Limited | Households | 1971 |
| Ralph Media Limited | Information & communication | 2010 |
| Rame VS Ltd | Professional & scientific | 2019 |
| Ramix Healthcare Limited | Health & social care | 2024 |
| Ranya Haircut Ltd | Other services | 2026 |
| Rapid Flooring Limited | Construction | 2009 |
| Rapid Heat Response Ltd | Construction | 2026 |