| Quick Tanning Sunbeds (UK) Limited | Administrative & support | 2006 |
| Quick Travel PVT Ltd | Transport & logistics | 2021 |
| Quick-Call Care Improvement Ltd | Professional & scientific | 2025 |
| Quicka Limited | Professional & scientific | 2004 |
| Quickbite Vending Ltd | Wholesale & retail | 2021 |
| Quicks of Chester Limited | Professional & scientific | 1933 |
| Quickspeed Couriers Ltd | Transport & logistics | 2023 |
| Quickx Ltd | Administrative & support | 2025 |
| Quik OFF Licence Ltd | Wholesale & retail | 2024 |
| Quill and Echo Press Ltd | Information & communication | 2025 |
| Quilter Solutions Limited | Information & communication | 2017 |
| Quimby Services Ltd | Transport & logistics | 2023 |
| Quincy Hudson Fischer Limited | Wholesale & retail | 2020 |
| Quinque Global Ltd | Professional & scientific | 2024 |
| Quintessential Property Ltd | Real estate | 2018 |
| Quinton Lettings Ltd | Real estate | 2022 |
| Quinton Property Ltd | Real estate | 2017 |
| Quiqui Mezcal Ltd | Wholesale & retail | 2013 |
| Quirkey Property Solutions Ltd | Real estate | 2025 |
| Quirkk Limited | Wholesale & retail | 2021 |
| Quirky Ales Ltd | Manufacturing | 2015 |
| Quitron Holding Ltd | Financial services | 2023 |
| Quix OFF Licence 7 Ltd | Wholesale & retail | 2025 |
| Quix OFF Licence Ltd | Wholesale & retail | 2023 |
| Quizzy Hops Limited | Arts & recreation | 2025 |
| Quo-Change Consulting Limited | Professional & scientific | 2016 |
| Quobalt Ltd | Real estate | 2022 |
| Quodesh Healthcare Consultancy Limited | Administrative & support | 2022 |
| Quonch Ltd | Information & communication | 2006 |
| Quophi Labs Ltd | Information & communication | 2026 |
| Quovadis Business Solutions Limited | Professional & scientific | 2017 |
| Qureshi Stakehouse Ltd | Hospitality | 2023 |
| Qurzad Ltd | Wholesale & retail | 2024 |
| Quwex Automotive UK Ltd | Wholesale & retail | 2025 |
| Qventure Partner Management LLP | | 2009 |
| Qweenb Vita Ltd | Health & social care | 2025 |
| QWF (Northampton) Ltd | Real estate | 2026 |
| QWM Group Ltd | Water & waste | 2019 |
| Qxrs Ltd | Other services | 2026 |
| Qxzx Ltd | Other services | 2026 |
| Q’S Kitchen (Liverpool) Ltd | Hospitality | 2021 |
| R & a Mullins Ltd | Real estate | 2022 |
| R & AH Holdings Limited | Financial services | 2020 |
| R & C Catering Limited | Hospitality | 2020 |
| R & D Installations (Yorkshire) Limited | Construction | 2019 |
| R & D Leeds Limited | Households | 2019 |
| R & D Sheridan Limited | Construction | 2014 |
| R & J Car Sales Ltd | Wholesale & retail | 2014 |
| R & J Jackson Properties Limited | Real estate | 2015 |
| R & J Properties Leeds Limited | Real estate | 2021 |
| R & K Cottages Ltd | Real estate | 2019 |
| R & L Homecare Services Limited | Public administration | 2024 |
| R & L Marine Limited | Manufacturing | 2015 |
| R & R Motor Group Ltd | Wholesale & retail | 2015 |
| R & R Products Ltd | Wholesale & retail | 2012 |
| R & R Rums Limited | Hospitality | 2023 |
| R & W Lettings and Property Management Limited | Real estate | 2010 |
| R a Aesthetics Ltd | Other services | 2024 |
| R a Birago Limited | Administrative & support | 2020 |
| R a Distribution Ltd | Wholesale & retail | 2025 |
| R a Knight Ltd | Professional & scientific | 2018 |
| R a Land Investments Ltd | Real estate | 2005 |
| R and a Hotels Group Ltd | Real estate | 2015 |
| R and E Hobson Limited | Professional & scientific | 2015 |
| R Atkin Ltd | Construction | 2017 |
| R B E Site Services Limited | Construction | 1995 |
| R B Signs Limited | Other services | 2008 |
| R Bailey Stocken Ltd | Real estate | 2022 |
| R Baxter Property Ltd | Real estate | 2020 |
| R Blackwater Limited | Construction | 2011 |
| R Clark and Sons Ltd | Construction | 2025 |
| R D Stott Architects Limited | Professional & scientific | 2017 |
| R D X Enterprises Ltd | Administrative & support | 2023 |
| R Digital Solutions Ltd | Information & communication | 2020 |
| R E Flude Associates Limited | Administrative & support | 2001 |
| R E P Investments Limited | Real estate | 2005 |
| R F Winder Electrical Limited | Manufacturing | 2005 |
| R Faith Gardening Services Ltd | Administrative & support | 2026 |
| R FOX & Sons Limited | Other services | 2003 |
| R Fresh Apartments Ltd | Real estate | 2023 |
| R G Building Services (Leeds) Ltd | Construction | 2005 |
| R Glass (Leeds) Limited | Construction | 2015 |
| R Gray Health Screening Limited | Professional & scientific | 2016 |
| R H Plastics Technology Limited | Manufacturing | 2016 |
| R Haigh Limited | Administrative & support | 2023 |
| R Hartley Interiors Ltd | Construction | 2024 |
| R J Body Works Ltd | Wholesale & retail | 2023 |
| R J Electec Limited | Construction | 2006 |
| R J Formwork, Steelfixing and Concrete Limited | Construction | 2026 |
| R J J Software Ltd | Information & communication | 2018 |
| R J Montgomery Limited | Health & social care | 2010 |
| R J Ortho Limited | Health & social care | 2014 |
| R J S Plasterers Limited | Construction | 2017 |
| R J Stout Ltd | Construction | 2025 |
| R J Summers Limited | Professional & scientific | 2014 |
| R J T Plumbing and Heating Solutions Ltd | Construction | 2023 |
| R J Whitaker Limited | Manufacturing | 2022 |
| R J Wood Ltd | Financial services | 2018 |
| R Jackson Physiotherapy Limited | Health & social care | 2003 |
| R K Health Limited | Health & social care | 2014 |