| Quad Warehouse Holdings Ltd | Financial services | 2022 |
| Quad-Warehouse Ltd | Wholesale & retail | 2018 |
| Quality & Environmental Management Solutions Limited | Professional & scientific | 2024 |
| Quantumuno Limited | Health & social care | 2021 |
| Quay Estates Limited | Real estate | 2017 |
| Queensbury Financial Advisers Ltd | Professional & scientific | 2024 |
| Quill Toys Limited | Wholesale & retail | 2021 |
| Quite Nice Ales Ltd | Hospitality | 2024 |
| Quokka Limited | Other services | 2025 |
| Quote ME Clean Ltd | Extraterritorial | 2013 |
| R & a Software (Systems) Limited | Information & communication | 1988 |
| R & E Kirwin Holdings Limited | Manufacturing | 2009 |
| R & K Inns Limited | Hospitality | 2016 |
| R & L Systems Limited | Manufacturing | 2012 |
| R & W Gidlow Limited | Agriculture & fishing | 2014 |
| R a Ward Developments Limited | Real estate | 2024 |
| R and J Ellis Limited | Other services | 2012 |
| R B Elliott and SON Limited | Manufacturing | 2008 |
| R B Elliott Construction Ltd | Construction | 2019 |
| R B Elliott Development Ltd | Construction | 2022 |
| R Hallam Limited | Hospitality | 2018 |
| R J Phillips Mortgages Ltd | Financial services | 2024 |
| R K Electrical Services Limited | Construction | 2008 |
| R Lowndes Plumbing & Heating Ltd | Construction | 2016 |
| R M Autotech Ltd | Education | 2020 |
| R Quinton Holdings Limited | Financial services | 2024 |
| R S Joinery & Restoration Services Ltd | Construction | 2004 |
| R Solar Ltd | Energy | 2023 |
| R Walker Holdings Ltd | Financial services | 2024 |
| R Werks Limited | Wholesale & retail | 2023 |
| R&A Building Limited | Construction | 2017 |
| R&H Property Maintenance Limited | Administrative & support | 2025 |
| R&P Uppercrust Limited | Hospitality | 2023 |
| R&S Cleaning Limited | Administrative & support | 2021 |
| R. Cooper Construction Ltd | Professional & scientific | 2015 |
| R. Mather Limited | Manufacturing | 2005 |
| R. O. Dust & Co. Limited | Administrative & support | 1983 |
| R.A Technology Consulting Ltd | Information & communication | 2025 |
| R.A.S. Training Ltd | Real estate | 2020 |
| R.D & SON Ltd | Administrative & support | 2026 |
| R.G.Davies Limited | Health & social care | 2010 |
| R.L.D Maintenance Property Services Ltd | Construction | 2017 |
| R2R Developments Ltd | Real estate | 2025 |
| RA Contract Solutions Ltd | Construction | 2021 |
| RA Information Systems EOT Ltd | Administrative & support | 2024 |
| RA Panels Limited | Manufacturing | 2017 |
| RAB Estates Limited | Real estate | 2024 |
| RAB Rewires Ltd | Construction | 2026 |
| Rabac Ltd | Health & social care | 2019 |
| Raceway Cafe Ltd | Hospitality | 2025 |
| RACH1968 Ltd | Other services | 2016 |
| Rachel Everitt RVN Ltd | Professional & scientific | 2018 |
| Rachel Swann Advisory Ltd | Professional & scientific | 2024 |
| Rackfords Garage Ltd | Wholesale & retail | 2019 |
| RAD Radiology Limited | Health & social care | 2022 |
| Radiance Luxury Tanning & Wellbeing Ltd | Other services | 2025 |
| Radiant Health Limited | Health & social care | 2017 |
| Radiation Protection Services Limited | Water & waste | 2012 |
| Radixon UK Limited | Information & communication | 2006 |
| Rafiki Provision Limited | Health & social care | 2012 |
| Rage Regeneration Limited | Manufacturing | 2020 |
| Rage Room Events Ltd | Arts & recreation | 2022 |
| RAH Consulting Ltd | Professional & scientific | 2021 |
| Rail Infrastructure Management Community Ltd | Administrative & support | 2026 |
| Rail Management Services Limited | Manufacturing | 1992 |
| Railway Consultant Services Ltd | Professional & scientific | 2014 |
| Railway Finance Limited | Financial services | 1999 |
| Railway View Management Company Limited | Households | 2018 |
| Rainbow Fibre Comms Ltd | Information & communication | 2020 |
| Rainbow Legal Services Ltd | Health & social care | 2014 |
| Rainbow Wellbeing Limited | Wholesale & retail | 2005 |
| Rainhill and Darlington Management Company Ltd | Households | 2011 |
| Raise HER CIC | Education | 2024 |
| Raising & Lowering Systems Limited | Manufacturing | 2012 |
| Raising the Game Limited | Arts & recreation | 2002 |
| RAM Project Services Limited | Professional & scientific | 2019 |
| Ramcroft Limited | Real estate | 2024 |
| Ramp Haus Ltd | Professional & scientific | 2025 |
| Ramp Rentals Limited | Extraterritorial | 2007 |
| Rampant Hippo Ltd | Professional & scientific | 2022 |
| Rampready Ltd | Wholesale & retail | 2025 |
| Ramsey Engineers (Armthorpe) Limited | Wholesale & retail | 1978 |
| Randell Holdings Group Ltd | Administrative & support | 2025 |
| Ranger Equipment Ltd | Wholesale & retail | 2001 |
| Ranmoor Gardens Management Limited | Real estate | 2013 |
| RAP Brands Ltd | Wholesale & retail | 2026 |
| Rapid Elite Couriers Ltd | Transport & logistics | 2026 |
| Rapid Windscreens Holdings Limited | Financial services | 2026 |
| Rapid Windscreens Limited | Wholesale & retail | 2003 |
| Rare Retreat Ltd | Other services | 2025 |
| RAS Town Planning Limited | Professional & scientific | 2021 |
| Rassic Ltd | Construction | 2018 |
| Rattlewood Holdings Limited | Financial services | 2026 |
| Rave Recycle Official Ltd | Wholesale & retail | 2023 |
| Raven Harrison Limited | Construction | 2024 |
| Raveningham Technology Holdings Limited | Professional & scientific | 2012 |
| Ravenscroft Public House Limited | Hospitality | 2013 |
| RAW Automotive Ltd | Other services | 2024 |
| RAW Bladetech Ltd | Professional & scientific | 2022 |
| RAW4ALL Ltd | Wholesale & retail | 2021 |