| Quellx Pro Ltd | Professional & scientific | 2025 |
| Quendale Consulting Ltd | Professional & scientific | 2017 |
| Queo Bathroom Innovations Limited | Wholesale & retail | 2016 |
| Query AI Ltd | Information & communication | 2025 |
| Quest Making Ltd | Construction | 2015 |
| Quest Realty Ltd | Real estate | 2019 |
| Questivo Solutions Limited | Professional & scientific | 2023 |
| Quick & Tasty Ltd | Hospitality | 2024 |
| Quick and Sparkly Ltd | Administrative & support | 2022 |
| Quick Bond DPC Limited | Construction | 2025 |
| Quick Fit Tyres Ltd | Other services | 2019 |
| Quick FIX Auto Ltd | Wholesale & retail | 2023 |
| Quick Flipz Ltd | Other services | 2023 |
| Quick Holidays Ltd | Administrative & support | 2024 |
| Quick Maintenance Liverpool Ltd | Transport & logistics | 2025 |
| Quick Move Consultant Limited | Professional & scientific | 2023 |
| Quick News Ltd | Wholesale & retail | 2026 |
| Quick Pick Convenience Ltd | Wholesale & retail | 2024 |
| Quick Pigeon Limited | Information & communication | 2026 |
| Quick Response Security Services Ltd | Administrative & support | 2026 |
| Quick Stay Property Solutions Ltd | Hospitality | 2022 |
| Quick Stepup Ltd | Wholesale & retail | 2026 |
| Quick Stop News Shop Ltd | Wholesale & retail | 2023 |
| Quick TIP Payments Limited | Information & communication | 2021 |
| Quick Tyres Kirkby Liverpool Limited | Wholesale & retail | 2024 |
| Quick World Service Ltd | Wholesale & retail | 2013 |
| Quick's Construction & Landscaping Limited | Construction | 2021 |
| Quickbng Ltd | Professional & scientific | 2025 |
| Quickhire Events Limited | Administrative & support | 2013 |
| Quickil Ltd | Other services | 2015 |
| Quickline Couriers Manchester Limited | Transport & logistics | 2020 |
| Quickline Group Holdings Limited | Financial services | 2020 |
| Quickline Haulage Limited | Transport & logistics | 2020 |
| Quickline Logistics Limited | Transport & logistics | 2016 |
| Quickly Cleaning Limited | Administrative & support | 2017 |
| Quickow Limited | Transport & logistics | 2025 |
| Quickpro Plastics Limited | Wholesale & retail | 2025 |
| Quicksale Properties Limited | Real estate | 2011 |
| Quickseal Special Projects Ltd | Construction | 2021 |
| Quickstalls Ltd | Professional & scientific | 2026 |
| Quicksy Limited | Wholesale & retail | 2025 |
| Quicktap Limited | Information & communication | 2019 |
| Quickway Ltd | Wholesale & retail | 2021 |
| Quids-In (North West) Limited | Extraterritorial | 1991 |
| Quiet Systems Ltd | Information & communication | 2026 |
| Quik Build UK Limited | Professional & scientific | 2006 |
| Quik Foods Ltd | Hospitality | 2021 |
| Quikmart Convenience Limited | Wholesale & retail | 2025 |
| Quilist Limited | Administrative & support | 2025 |
| Quillall Ltd | Information & communication | 2023 |
| QUINLANS1963 Ltd | Other services | 2014 |
| Quinn & Mudd Property Company Limited | Professional & scientific | 1996 |
| Quinn Civils and Groundworks Ltd | Construction | 2023 |
| Quinn Constructel Limited | Construction | 2012 |
| Quinn Cycles Limited | Wholesale & retail | 2014 |
| Quinn Developments NW Limited | Construction | 2014 |
| Quinn Domestic Care NW Ltd | Construction | 2025 |
| Quinn Holdings NW Ltd | Financial services | 2023 |
| Quinn Infrastructure Services Limited | Construction | 1989 |
| Quinn Melville Barrow LLP | | 2005 |
| Quinn Quirk Developments Limited | Real estate | 2024 |
| Quinn Rail Ltd | Construction | 2016 |
| Quinn Remediation NW Ltd | Construction | 2024 |
| Quinn Utilities NW Ltd | Construction | 2024 |
| Quinness Ltd | Administrative & support | 2024 |
| Quinntana Commercial Ltd | Real estate | 2017 |
| Quinntana Developments Ltd | Construction | 2017 |
| Quinntana Group Ltd | Financial services | 2017 |
| Quinntana Homes Ltd | Real estate | 2017 |
| Quinntana Services Ltd | Construction | 2018 |
| Quinta RS Limited | Financial services | 2017 |
| Quintessential Brands Premium Brands Limited | Wholesale & retail | 2014 |
| Quintessential Brands Spirit Solutions Limited | Wholesale & retail | 2011 |
| Quintus Property Solutions Limited | Real estate | 2022 |
| Quirefast Limited | Real estate | 1983 |
| Quirk Group Ltd | Wholesale & retail | 2025 |
| Quirkex Ltd | Real estate | 2023 |
| Quirky Academy CIC | Education | 2024 |
| Quirky AF Ltd | Professional & scientific | 2023 |
| Quirky Digital Limited | Professional & scientific | 2020 |
| Quirky Finance Ltd | Financial services | 2024 |
| Quirky Hire Ltd | Administrative & support | 2024 |
| Quirky Holdings Limited | Financial services | 2023 |
| Quiston Grange Landscape Management Company Limited | Households | 2011 |
| Quiston Grange Management Company Limited | Households | 2011 |
| Quote Easy Limited | Financial services | 2017 |
| Quoto Limited | Construction | 2017 |
| Quovexa Ltd | Information & communication | 2026 |
| Quuenie Nails & Spa Ltd | Other services | 2025 |
| QVO Hospitality Ltd. | Administrative & support | 2016 |
| QVO Spirits Ltd | Real estate | 2019 |
| Qwik Spares Ltd | Professional & scientific | 2019 |
| Qwipter & Co Ltd | Education | 2025 |
| Qwipter Hair Studio Ltd | Other services | 2025 |
| QWL Properties Ltd | Real estate | 2021 |
| Q’S Property Liverpool Ltd | Real estate | 2025 |
| R & C Collections Ltd | Administrative & support | 2019 |
| R & C Renaissance Ltd | Construction | 2018 |
| R & D Investment Relief Limited | Extraterritorial | 2025 |
| R & D Painting & Decorating Services Ltd | Construction | 2002 |