| Punjab Estates Ltd | Real estate | 2019 |
| Punjabi Roofing Ltd | Construction | 2017 |
| Pura Real Estate Ltd | Real estate | 2023 |
| Purcariu Limited | Manufacturing | 2024 |
| Pure Connoisseurs Limited | Professional & scientific | 2013 |
| Purestrands Ltd | Wholesale & retail | 2024 |
| Purity Home Ltd | Other services | 2018 |
| Purity Tower Ltd | Wholesale & retail | 2025 |
| Purnaa Limited | Wholesale & retail | 2026 |
| Purple Arch Houses Ltd | Real estate | 2024 |
| Purple Dumbell Ltd | Wholesale & retail | 2016 |
| Purple Staffing Ltd | Administrative & support | 2017 |
| Purplewell Limited | Health & social care | 2023 |
| Pussles Limited | Professional & scientific | 2013 |
| Putul Ltd | Construction | 2025 |
| Pyramida Trading Ltd | Transport & logistics | 2026 |
| Python 2 Limited | Wholesale & retail | 2026 |
| Python Private Limited | Wholesale & retail | 2024 |
| Q&A Appliances Ltd | Wholesale & retail | 2019 |
| Q1 Hair and Beauty Ltd | Other services | 2019 |
| Q22 Holdings Limited | Financial services | 2026 |
| QA24 Limited | Health & social care | 2014 |
| Qadr Property Services Ltd | Real estate | 2025 |
| Qaim Services Ltd | Construction | 2015 |
| Qaswa PVT Ltd | Real estate | 2022 |
| QB Cleaning Service Limited | Administrative & support | 2019 |
| Qestor Ltd | Professional & scientific | 2026 |
| Qifa Limited | Wholesale & retail | 2025 |
| Qlines Ltd | Wholesale & retail | 2022 |
| QQ Incorporation Limited | Wholesale & retail | 2016 |
| QQQ Ltd | Wholesale & retail | 2009 |
| QU Services Ltd | Real estate | 2025 |
| Quadosh Consortiums Limited | Manufacturing | 2017 |
| Qualifoods Ltd | Wholesale & retail | 2017 |
| Quality Cars and Parts Limited | Wholesale & retail | 2019 |
| Quality Childcare Services Limited | Education | 2019 |
| Quality Training and Assessment Limited | Education | 2022 |
| Quantacore Engineering Ltd | Construction | 2025 |
| Quantiv Accountancy Ltd | Professional & scientific | 2025 |
| Quantum Arcade Limited | Information & communication | 2025 |
| Quantum Codecrafters Ltd | Information & communication | 2024 |
| Quantum Orbit Ltd | Wholesale & retail | 2025 |
| Quantumn Cart Ltd | Wholesale & retail | 2026 |
| Qudot Properties Limited | Real estate | 2026 |
| QUEST2RECRUIT Services Limited | Administrative & support | 2019 |
| Quick Pick Prime Ltd | Wholesale & retail | 2025 |
| Quick Roofing Ltd | Construction | 2020 |
| Quick Van Move Ltd | Transport & logistics | 2025 |
| Quickconstructionuk Ltd | Construction | 2019 |
| Quickfix Car Repairs Limited | Wholesale & retail | 2019 |
| Quiet AS Kept UK Ltd | Arts & recreation | 2012 |
| Quin Couture UK Limited | Wholesale & retail | 2022 |
| Qurtubah Dagenham Ltd | Education | 2025 |
| Qurtubah Nursery Ltd | Education | 2021 |
| Qusaley Ltd | Health & social care | 2018 |
| Qwest Corporate Limited | Transport & logistics | 2024 |
| R & Co London Ltd | Wholesale & retail | 2021 |
| R & K Homecare Limited | Health & social care | 2023 |
| R & R Property Investment (London) Ltd | Real estate | 2019 |
| R & V LA Familia Ltd | Wholesale & retail | 2017 |
| R & V Property Investments Ltd | Real estate | 2020 |
| R a S Contracting Limited | Other services | 2025 |
| R and T Cosmetics Ltd | Wholesale & retail | 2025 |
| R F Brothers Ltd | Administrative & support | 2018 |
| R H Services Repairs Limited | Construction | 2018 |
| R Hart Jewellers Ltd | Manufacturing | 2024 |
| R J Laundry Limited | Other services | 2020 |
| R L a Brickwork Limited | Construction | 2021 |
| R N Hambro Limited | Financial services | 1998 |
| R S Window Systems Limited | Manufacturing | 2019 |
| R Scaffolding Ltd | Construction | 2020 |
| R&A Clothes Ltd | Wholesale & retail | 2025 |
| R&B Interiors Ltd | Construction | 2024 |
| R&C Mechanical Solutions Ltd | Construction | 2021 |
| R&D Protect Ltd | Public administration | 2011 |
| R&F Services Ltd | Administrative & support | 2026 |
| R&I Driver Ltd | Transport & logistics | 2017 |
| R&K Brothers Limited | Wholesale & retail | 2017 |
| R&L Houses Ltd | Construction | 2023 |
| R&N Consultants Ltd | Information & communication | 2021 |
| R&R Promo Ltd | Hospitality | 2022 |
| R&R Property Group Limited | Construction | 2022 |
| R&S Lets Limited | Administrative & support | 2009 |
| R&Y Cleaning Services Ltd | Administrative & support | 2021 |
| R.A. Builders Ltd | Construction | 2016 |
| R.K. Carpets Ltd | Wholesale & retail | 2015 |
| R.K.Driver Ltd | Transport & logistics | 2026 |
| R.Randall Limited | Other services | 1956 |
| R.U Pharmservices Ltd | Wholesale & retail | 2018 |
| R.W.A. Businesses Ltd | Information & communication | 2018 |
| R3 Tech UK Ltd | Professional & scientific | 2019 |
| R3B Carpentry Ltd | Manufacturing | 2025 |
| R3S Ventures Ltd | Information & communication | 2025 |
| R4EBB Ltd | Construction | 2024 |
| R@M Onofrey Ltd | Administrative & support | 2021 |
| RA Barbers Ltd | Other services | 2023 |
| RA Foods (UK) Limited | Wholesale & retail | 2018 |
| RAA Education and Consultancy Ltd | Education | 2026 |
| Rabbit Trans Ltd | Wholesale & retail | 2022 |
| Rabyem Services Ltd | Other services | 2015 |