| Qbiz UK Limited | Administrative & support | 2015 |
| Qbuild Software UK Limited | Information & communication | 2025 |
| Qeen Biotechnologies UK Limited | Wholesale & retail | 2026 |
| Qhuk Ltd | Professional & scientific | 2023 |
| Qmech Design Ltd | Professional & scientific | 2014 |
| QPF Limited | Information & communication | 2018 |
| Quadion Limited | Administrative & support | 2015 |
| Quality Eventing Limited | Education | 2024 |
| Quality Paediatric Care Ltd | Health & social care | 2019 |
| Quanta Dialysis Technologies Limited | Manufacturing | 2008 |
| Quanta Fluid Solutions Limited | Extraterritorial | 2014 |
| Quantum Ctrm Ltd | Information & communication | 2019 |
| Quantum Energy Limited | Wholesale & retail | 2023 |
| Quartz Point Solihull Management Company Limited | Real estate | 2025 |
| Quattro Restaurant Limited | Hospitality | 2003 |
| Qube 3D Ltd | Professional & scientific | 2009 |
| Quddus Foods Ltd | Hospitality | 2022 |
| Quest Electronics Limited | Manufacturing | 2017 |
| Quick Tyres Limited | Manufacturing | 2026 |
| Quickmatch Recruitment Ltd | Administrative & support | 2026 |
| Quicksilver Couriers Limited | Transport & logistics | 2003 |
| Quinton Street Management Company Limited | Hospitality | 2013 |
| Quirke Ltd | Health & social care | 2023 |
| Quivira (Kent) Ltd | Real estate | 2015 |
| Quivira Bridging NO.1 LLP | | 2012 |
| Quivira Capital Ltd | Financial services | 2011 |
| Quivira Capital NO 2 Limited | Financial services | 2016 |
| Quota Trading Limited | Real estate | 2006 |
| Quro Aeturnum Ltd | Real estate | 2022 |
| Qwink Ltd | Wholesale & retail | 2025 |
| R & B a Ellis Ltd | Administrative & support | 2016 |
| R & C International Limited | Real estate | 2022 |
| R & D Evans Ltd | Financial services | 2026 |
| R Anderson Electrical Ltd | Construction | 2026 |
| R Print Ltd | Manufacturing | 2010 |
| R&A Builders Warwickshire Ltd | Construction | 2024 |
| R&U Developments Ltd | Construction | 2022 |
| R. & K. Hughes Limited | Real estate | 1947 |
| R. Locke & SON Limited | Other services | 2006 |
| R.A.G. Architects Limited | Professional & scientific | 2013 |
| R.Baylis Construction Ltd | Construction | 2020 |
| R.D.T. Consultants Limited | Information & communication | 1984 |
| R.J. Adhesive Solutions Ltd | Professional & scientific | 2005 |
| R.M.F. Installation and Services Limited | Manufacturing | 1988 |
| R2R Warwick Limited | Households | 2025 |
| R3 Consultancy Limited | Construction | 2021 |
| R3N1 Limited | Energy | 2023 |
| R3N2 Limited | Energy | 2024 |
| R53 Engineering Limited | Manufacturing | 2007 |
| Raas LAB Ltd | Professional & scientific | 2021 |
| Rabona Sports Group Ltd | Arts & recreation | 2024 |
| RAC Mechanical Ltd | Construction | 2022 |
| Racing Pride CIC | Arts & recreation | 2020 |
| Radarmoor Limited | Transport & logistics | 1982 |
| Radford Services Limited | Financial services | 1991 |
| Radi-Solutions Limited | Information & communication | 2007 |
| Radical Body Ltd | Arts & recreation | 2021 |
| Radish Education UK Ltd | Information & communication | 2024 |
| Radius CNC Ltd | Manufacturing | 2006 |
| Radley Management Limited | Wholesale & retail | 2018 |
| Radtec Industrial Services Limited | Other services | 1999 |
| Raeon Ltd | Manufacturing | 2023 |
| Rafayel Ltd | Wholesale & retail | 2025 |
| Rafflemy Ltd | Arts & recreation | 2017 |
| Raffles Covers Co. Limited | Wholesale & retail | 2025 |
| Rage Rooms Leamington Spa Ltd | Other services | 2025 |
| Rage Rooms UK Ltd | Other services | 2025 |
| Raise GTM Search Limited | Professional & scientific | 2025 |
| Raising Robots Ltd | Wholesale & retail | 2016 |
| Rajwinder Logistics Ltd | Transport & logistics | 2025 |
| RAL Software Limited | Information & communication | 2001 |
| Ramsbottom Consulting Limited | Information & communication | 2025 |
| Ramsgate Consultants Limited | Administrative & support | 1997 |
| Ranamk Ltd | Professional & scientific | 2022 |
| Rand Developments Limited | Real estate | 2001 |
| Randhawa Enterprises Limited | Professional & scientific | 2013 |
| Rangoli Bistro Limited | Hospitality | 2024 |
| Rank Easily Ltd. | Information & communication | 2016 |
| Raoi Ltd | Manufacturing | 2025 |
| Rapid Key 24/7 Ltd | Wholesale & retail | 2026 |
| Rapscraft Limited | Manufacturing | 2011 |
| Raspberry Blossom Ltd | Wholesale & retail | 2017 |
| Ratemyact.Com Limited | Information & communication | 2026 |
| Ratgate Limited | Other services | 2018 |
| Raudo Limited | Information & communication | 2017 |
| Ravenwood 1964 Limited | Extraterritorial | 2014 |
| Ravi Gowda Limited | Health & social care | 2008 |
| Raving Investments Limited | Financial services | 2017 |
| Ravop Commercial Limited | Real estate | 2019 |
| Ravop Limited | Real estate | 2016 |
| RAW Power Games Ltd | Information & communication | 2024 |
| Raybright Limited | Health & social care | 2010 |
| Raymond's Recoveries and Repairs Ltd | Wholesale & retail | 2023 |
| Rayu Warwick Ltd | Hospitality | 2025 |
| Razors II Barbers Ltd | Other services | 2020 |
| RBG Property Developments Ltd | Construction | 2019 |
| Rbim Investment Management Limited | Professional & scientific | 2025 |
| RBL Brand Agency Limited | Professional & scientific | 2000 |
| RBM Aesthetics Ltd | Other services | 2025 |
| RC UK Inc. Limited | Financial services | 2024 |