| Quick Fit Doors Ltd | Other services | 2018 |
| Quick Services Group Ltd | Construction | 2013 |
| Quickly Quickly Ltd | Construction | 2018 |
| Quicksilver UK Building Services Ltd | Construction | 2005 |
| Quickware Limited | Information & communication | 1998 |
| Quigg Golden SE Limited | Professional & scientific | 2013 |
| Quinn Accountancy Services Limited | Professional & scientific | 2024 |
| Quinndustries Ltd | Information & communication | 2024 |
| Quins Palace Ltd | Real estate | 2020 |
| Quinta Mews Management Company Limited | Households | 2011 |
| Quintain Consulting Limited | Professional & scientific | 2026 |
| Quivvy Limited | Hospitality | 2012 |
| Quiz Trail CIC | Education | 2023 |
| QW24 Limited | Professional & scientific | 2024 |
| R & B Masonry & General Builders Limited | Construction | 2002 |
| R & D Partners Limited | Professional & scientific | 2020 |
| R & D Surfacing Limited | Construction | 2018 |
| R & L International Property Investments Limited | Real estate | 2021 |
| R & M Direct Ltd | Wholesale & retail | 2022 |
| R & R Contracting Limited | Construction | 2019 |
| R & R Koti Ltd | Other services | 2018 |
| R & V Elliott Associates Limited | Professional & scientific | 2014 |
| R a Events Limited | Wholesale & retail | 2017 |
| R a Solutions Limited | Information & communication | 1999 |
| R and R Ventures Limited | Health & social care | 2015 |
| R Brothers Ltd | Hospitality | 2015 |
| R Dorrill and Sons Ltd | Construction | 2024 |
| R Gwennell Ltd | Manufacturing | 2014 |
| R House Media Ltd | Professional & scientific | 2025 |
| R L Beal Carpentry & Construction Ltd | Construction | 2022 |
| R MAY Services Ltd | Construction | 2020 |
| R Parks Carpentry Limited | Manufacturing | 2025 |
| R Russell Roofing Ltd | Construction | 2024 |
| R&Athomas Ltd | Professional & scientific | 2018 |
| R&B Accessories Ltd | Wholesale & retail | 2024 |
| R&Cb Services Ltd | Construction | 2025 |
| R&G Properties Kent Ltd | Real estate | 2024 |
| R&I Trans Solutions Ltd | Transport & logistics | 2023 |
| R-Ten Models Ltd | Administrative & support | 2021 |
| R. B. Electrical Limited | Construction | 2001 |
| R. Cunningham Roofing Ltd | Construction | 2012 |
| R. H. Ferris (Romney Marsh) Limited | Wholesale & retail | 1974 |
| R. Spiller Roofing & Building Limited | Construction | 2017 |
| R. Sport Limited | Wholesale & retail | 1999 |
| R.A Sameday Haulage Ltd | Transport & logistics | 2019 |
| R.D.R Drilling Limited | Construction | 2013 |
| R.E.T Recovery Ltd | Professional & scientific | 2023 |
| R.J. Kingsland & SON Limited | Wholesale & retail | 1979 |
| R.J.Doran and Company Limited | Manufacturing | 1979 |
| R.M. Vidler Commercial Plant Ltd | Administrative & support | 2006 |
| R.N.S Air Conditioning Ltd | Construction | 2024 |
| R.S. Crooke Holdings Limited | Extraterritorial | 2005 |
| R.S. French Ltd | Water & waste | 2010 |
| R.S.Crooke & Co.(Paper Sales)Limited | Professional & scientific | 1949 |
| R.Z.V 1987 Ltd | Transport & logistics | 2026 |
| R1 Building & Maintenance Ltd | Manufacturing | 2022 |
| R10 Tyres and Service Ltd | Wholesale & retail | 2022 |
| R2 Electrical Systems Limited | Construction | 2021 |
| RA Commercial Consultants Ltd | Administrative & support | 2017 |
| RA Lettings & Property Holdings Ltd | Real estate | 2022 |
| RA Sameday Couriers Limited | Transport & logistics | 2012 |
| Raccoon Ltd | Information & communication | 2025 |
| Rack My Hifi Ltd | Wholesale & retail | 2024 |
| Rackingsafetyinspections Limited | Transport & logistics | 2021 |
| Racnom Care Ltd | Health & social care | 2022 |
| Radiance Cleaning Solutions Ltd | Administrative & support | 2025 |
| Radioactive Risk Management Limited | Other services | 2007 |
| Radius Fire Safety Systems Limited | Administrative & support | 2003 |
| Radoslaw Maranowski 0384 Limited | Transport & logistics | 2015 |
| Radrisk Holdings Limited | Other services | 2024 |
| Radvas Ltd | Construction | 2023 |
| Rafa Property Investmemts Limited | Real estate | 2021 |
| Rags to Riches Limited | Real estate | 1999 |
| Ragstone Place (Bearsted) Management Company Limited | Households | 2005 |
| Raheem Property Investments Limited | Real estate | 2024 |
| Railsafe Consultancy Ltd | Construction | 2015 |
| Raimondi Holdings Limited | Financial services | 2020 |
| Rainbow Villa Limited | Other services | 2025 |
| Raines Plant & Forklift Training Limited | Transport & logistics | 2014 |
| Rajshree Catering Limited | Hospitality | 2019 |
| RAK Thai Spa Ltd | Other services | 2020 |
| Ralf Stanley Ltd | Other services | 1984 |
| Rally Team GB Limited | Arts & recreation | 2011 |
| Ralph Engineering Ltd | Professional & scientific | 1997 |
| Ralph Steadman Art Collection Limited | Information & communication | 2010 |
| RAM Development Group Ltd | Construction | 2025 |
| Ramaailo Catering Ltd | Hospitality | 2024 |
| Ramaul Limited | Real estate | 1999 |
| Rambling Rose Holidays Limited | Hospitality | 2022 |
| Ramcrete Limited | Construction | 2012 |
| Rame Transport Ltd | Transport & logistics | 2018 |
| Ramirez Budhai Property Investments 1 Ltd | Real estate | 2020 |
| Ramo Screed-Resin Works Limited | Construction | 2024 |
| RAN Trade Ltd | Construction | 2023 |
| Range Fencing Limited | Construction | 2017 |
| Ranger Electrical Limited | Construction | 2018 |
| Ransley & Co. Ltd | Construction | 2025 |
| Ranworth Capital Limited | Professional & scientific | 2012 |
| Ranworth Investments | Professional & scientific | 2012 |
| Rapha Haven Ltd | Health & social care | 2020 |