| Quarry Fish Bar Limited | Hospitality | 2017 |
| Quartz Overlay Worktops Ltd | Manufacturing | 2024 |
| Quayside Events Ltd | Hospitality | 2025 |
| Queenstreet Goldsmiths Limited | Wholesale & retail | 2010 |
| Quell Fire Solutions UK Limited | Construction | 2016 |
| Quensh GB (Europe) Limited | Construction | 2014 |
| Quentin Developments Limited | Extraterritorial | 2001 |
| Quest Building & Joinery Limited | Construction | 2003 |
| Quest Unique Glass Designs Limited | Construction | 2007 |
| Quibroe Homes Ltd | Construction | 2019 |
| Quickplay Events Limited | Arts & recreation | 2014 |
| Quickview Digital Limited | Information & communication | 2025 |
| Quiktrak Ltd | Information & communication | 2025 |
| R & D Service & Repairs Limited | Wholesale & retail | 2012 |
| R & H Landscapes Ltd | Administrative & support | 2011 |
| R & J Hill Estates Ltd | Real estate | 2020 |
| R & J Services (Mansfield) Limited | Transport & logistics | 2021 |
| R & K Electrical Services Ltd | Construction | 2024 |
| R & K Garage Limited | Wholesale & retail | 2006 |
| R & R Tuffley Limited | Wholesale & retail | 2020 |
| R & T Construction Ltd | Construction | 2023 |
| R B and K Holdings Ltd | Financial services | 2023 |
| R B Motors (Mansfield) Ltd | Wholesale & retail | 2024 |
| R C Enterprises (EM) Limited | Manufacturing | 1993 |
| R G Joinery Services (Mansfield) Ltd. | Extraterritorial | 2019 |
| R GAL Consulting Services Ltd | Administrative & support | 2020 |
| R H Patel Limited | Wholesale & retail | 2018 |
| R J Booth Holdings Limited | Financial services | 2018 |
| R J Electrical Engineering Ltd | Professional & scientific | 2025 |
| R J Shacklock Limited | Agriculture & fishing | 2005 |
| R J Taylor Services Ltd | Other services | 2020 |
| R Jarvis Properties Limited | Real estate | 2012 |
| R Jarvis Property LP | | 2012 |
| R M Wright Limited | Agriculture & fishing | 2006 |
| R O Electrical Limited | Construction | 2004 |
| R T a Holdings Limited | Real estate | 2022 |
| R&A Residential Solutions Ltd | Real estate | 2025 |
| R&D Investment Properties Limited | Real estate | 2016 |
| R&H Bargain Traders Ltd | Wholesale & retail | 2026 |
| R&P Cleaning Limited | Administrative & support | 2016 |
| R&S Top Cars Ltd | Wholesale & retail | 2025 |
| R&T Plumbing & Heating Limited | Construction | 2019 |
| R. D. Scott Limited | Wholesale & retail | 1983 |
| R.A. Cowen & Partners (Financial Services) Limited | Financial services | 1986 |
| R.A. Cowen & Partners Limited | Financial services | 1973 |
| R.B. Wholesale Limited | Wholesale & retail | 1992 |
| R.E. Farm Limited | Wholesale & retail | 2000 |
| R.H. Wyatt & Co. Limited | Professional & scientific | 2000 |
| R.I. Day Limited | Construction | 2006 |
| R.M.S. Roofing and Property Maintenance Limited | Construction | 2008 |
| R.R.R Corbul Ltd | Transport & logistics | 2025 |
| RA Corby Limited | Wholesale & retail | 2022 |
| Race Component Development Ltd | Professional & scientific | 2009 |
| Racing Merchandise Ltd | Extraterritorial | 2019 |
| Racing Reach Limited | Real estate | 2024 |
| Racing Reach Management Company Limited | Real estate | 1993 |
| Racks Limited | Hospitality | 2026 |
| Radfords Motor Sales Limited | Wholesale & retail | 2011 |
| Radiant Crystals UK Ltd | Wholesale & retail | 2026 |
| Rafal Julek Ltd | Transport & logistics | 2020 |
| Raging Bull Promotions Limited | Arts & recreation | 2008 |
| RAI Convenience Limited | Wholesale & retail | 2017 |
| Raiche 2026 Ltd | Wholesale & retail | 2026 |
| Rail-Share Ltd | Wholesale & retail | 2021 |
| Railway Property Regeneration Ltd | Extraterritorial | 2014 |
| Rain Forest Beltar Ltd | Wholesale & retail | 2021 |
| Rainbow Bridge Pet Crematoria Ltd | Water & waste | 2024 |
| Rainbow Properties (London) Limited | Construction | 2024 |
| Rainbow Psychological Services Ltd | Health & social care | 2022 |
| Rainworth (Yorkshire) Limited | Wholesale & retail | 2021 |
| Rainworth Barber Shop 2 Ltd | Other services | 2022 |
| Rainworth Barber Shop Ltd | Other services | 2019 |
| Rainworth Carpentry and Joinery Ltd | Construction | 2026 |
| Rainworth Garden Buildings Ltd | Manufacturing | 2020 |
| Rainworth Miners' Welfare Social Club Limited | Hospitality | 1991 |
| Rainworth Motors Limited | Wholesale & retail | 2000 |
| Rainworth Properties Limited | Real estate | 2019 |
| Rainworth Property Limited | Real estate | 2024 |
| Rais Traditional Fish and Chips Limited | Hospitality | 2025 |
| Rajaluxmy Ltd | Wholesale & retail | 2019 |
| Ralvia Holdings Ltd | Real estate | 2026 |
| RAM Gate Automation Limited | Manufacturing | 2024 |
| Rampstall Ltd | Wholesale & retail | 2021 |
| Ranavaya Retail Ltd | Wholesale & retail | 2023 |
| Randmaa Food Limited | Wholesale & retail | 2025 |
| Random Harvest Limited | Administrative & support | 1998 |
| Random Harvest Pictures Limited | Information & communication | 1998 |
| Ranj Greens Limited | Wholesale & retail | 2019 |
| Ransomwood Estates Holdings Limited | Financial services | 2017 |
| Ransomwood Estates UK Limited | Real estate | 2016 |
| Ranya Barber Nottingham Ltd | Other services | 2023 |
| Raphaelvlad Limited | Information & communication | 2025 |
| Raphaelvladimirdelivery Limited | Hospitality | 2025 |
| Rasammah Limited | Wholesale & retail | 2024 |
| Rass Stores Limited | Wholesale & retail | 2021 |
| Rastattoo Ltd | Other services | 2021 |
| Rather Limited | Professional & scientific | 2022 |
| Ratson Healthcare Ltd | Public administration | 2025 |
| Rattcliffe Gate Ltd | Hospitality | 2024 |
| Ravan Beauty Ltd | Other services | 2021 |