| Quantitative Brokers UK Limited | London | A rating |
| Quantitative Risk Management Ltd | London | A rating |
| Quantium Limited | London | A rating |
| QUANTIUM TECHNOLOGY LTD | Haslemere | A rating |
| Quantive Technologies UK Limited | London | A rating |
| Quantock vale surgery | Taunton | A rating |
| QuantrolOx Ltd | Oxford | A rating |
| QuantSpark Limited | London | A rating |
| QuantSpark Ltd | London | A rating |
| Quantum 21 Ltd T/A PlayMeTech | London | A rating |
| Quantum 4 Ltd | Market Harborough | A rating |
| Quantum Actuarial LLP | Cardiff | A rating |
| QUANTUM ADVANCED SOLUTIONS LTD | Kidlington | A rating |
| Quantum Aviation Ltd | Prestwick | A rating |
| Quantum Base Limited | Lancaster | A rating |
| Quantum Clothing Group Limited | Long Eaton | A rating |
| Quantum Commodity Intelligence Ltd | London | A rating |
| Quantum Consumer Solutions Pvt. Ltd | London | A rating |
| Quantum Controls Ltd | Prudhoe | A rating |
| Quantum Data Energy Plc | London | A rating |
| Quantum Design UK and Ireland LTD | Leatherhead | A rating |
| Quantum Detectors Ltd | Oxford | A rating |
| Quantum Dice Limited | Oxford | A rating |
| Quantum Edge Technologies | London | A rating |
| Quantum Fabrix | Kidlington | A rating |
| QUANTUM FINANCIAL ADVISERS LTD | Hemel Hempstead | A rating |
| Quantum Fintech Leap Limited | London | A rating |
| Quantum Group Renewables LLP | Rainham | A rating |
| Quantum Healthcare Ltd | Carlisle | A rating |
| Quantum I Computing Limited | London | A rating |
| Quantum Interior Solutions Ltd | Colchester | A rating |
| Quantum IT Lab Ltd | London | A rating |
| Quantum Leap Technologies (Holdings) Limited | Aberdeen | A rating |
| Quantum Light Management Ltd | London | A rating |
| Quantum Marketing (Europe) Ltd | Bournemouth | A rating |
| Quantum Metric (UK) Limited | Reading | A rating |
| Quantum Motion Technologies Limited | London | A rating |
| Quantum NRG Ltd | Birmingham | A rating |
| Quantum Pacific (UK) LLP | London | A rating |
| QUANTUM PERFORMANCE CONSULTANTS LTD | Oldham | A rating |
| QUANTUM PERSONAL HEALTH CARE LTD | Leatherhead | A rating |
| Quantum Real Estate Partners Ltd | London | A rating |
| Quantum Science Ltd | Keckwick Lane | A rating |
| Quantum Services Management Ltd | London | A rating |
| Quantum Sky Limited | Slough | A rating |
| Quantum Switch Admin Limited | Cheltenham | A rating |
| QUANTUM TUNING LTD | MAIDENHEAD | A rating |
| Quantum Turned Parts Limited | Hinckley | A rating |
| Quantum UK Business Solutions Ltd | Hemel Hempstead | A rating |
| QUANTUMBYTE IT LTD | Hertfordshire | A rating |
| Quantumcrest Solutions Ltd (t/a Reachtix) | Reading | A rating |
| QuantuMDx Group Limited | Newcastle upon Tyne | A rating |
| Quantus IT Solutions Ltd | Walton-on-Thames | A rating |
| QUANTWING STAFFING LTD | London | A rating |
| Quarch Technology Ltd | Aviemore | A rating |
| Quarmby Ltd | London | A rating |
| Quarriers | Glasgow | B rating |
| Quarry Bank Medical Centre | Brierley Hill | A rating |
| Quarry House Vets | Torquay | A rating |
| Quarry Mount Care Ltd | Swindon | A rating |
| Quarry Plant and Industry Limited | Ellistown | A rating |
| Quarryside Practice | Johnstone | A rating |
| Quarterback Real Estate Ltd | London | A rating |
| Quartix Limited | Newtown | A rating |
| Quarto Publishing plc | London | A rating |
| Quartz Care | LIVERPOOL | A rating |
| Quartz Digital Ltd | London | A rating |
| Quartz Technical Services Limited | Quorn | A rating |
| QUAS HEALTHCARE LTD | Portlethen | A rating |
| Quasar Civils Ltd | London | A rating |
| QUASAR CONSTRUCTION LTD | Northfleet | A rating |
| Quastels LLP | LONDON | A rating |
| QUATRA UK LTD | GREENFORD | A rating |
| Quatreau Manufacturing Limited | Woking | A rating |
| QUATRO BUILDING CONTRACTING UK LIMITED | Twickenham | A rating |
| Quatro Solutions Limited | London | A rating |
| QUATROMATIC LTD | London | A rating |
| QUATT CRICKET CLUB | Bridgnorth | A rating |
| Quattordici Limited | Chislehurst | A rating |
| Quattordici Ltd | Chislehurst | A rating |
| Quattro Business Consulting Ltd | London | A rating |
| Quattro Design Architects Ltd | Gloucester | A rating |
| Quattro Plant Ltd | Stratford | A rating |
| Quattro Stagioni | London | A rating |
| Quay Court (Care Centre) Limited | Crediton | A rating |
| Quay Garage and Car Sales Ltd | Braunton | A rating |
| Quay Street News | Cardiff | A rating |
| Quays Medical Practice | Neath | A rating |
| QUAYSAM CHILDCARE LTD | LONDON | A rating |
| Quayside Care Limited | Narberth | A rating |
| Quayside medical Practice | Failsworth | A rating |
| Quayside Pharmacy Ltd | Newcastle upon Tyne | A rating |
| Quaywest Housing ltd | Leamington Spa | A rating |
| QUAZIS LIMITED | LUTON | A rating |
| Qube Renewables Limited | Wiveliscombe | A rating |
| Qube Research & Technologies Limited | London | A rating |
| Qubeeo Limited (trading as StoryStream) | Brighton | A rating |
| QUBIS Limited | Belfast | A rating |
| QUBIT HCM LTD | Sutton | A rating |
| Qubix International Ltd | Woking | A rating |
| Qubos Systematic | London | A rating |
| Qubotic Limited | Ryhall | A rating |
| QUBROS LIMITED | Barkingside | A rating |
| Quddsi Supermarket | Birmingham | A rating |
| QUDDUS FOODS LTD/Caprinos Pizza | Warwick | A rating |
| QUDIT LABS LTD | Manchester | A rating |
| QUEBEC CONSULTANCY LIMITED | WEST MOLESEY | A rating |
| QUEBEC COURT FREEHOLD LIMITED | EDGWARE | A rating |
| Quedgeley Medical Centre | Gloucester | A rating |
| Queen Ann Care | London | A rating |
| Queen Anne Street Medical Centre | London | B rating |
| Queen Anne's School | Reading | A rating |
| Queen Elizabeth School | Luton | A rating |
| Queen Elizabeth's School | Barnet | A rating |
| Queen Ethelburgas College | York | A rating |
| Queen MargaretUniversity | Musselburgh | A rating |
| Queen Mary University of London | London | A rating |
| Queen of Clubs Lifestyle Luxury Services Ltd | London | A rating |
| Queen Square Medical Practice | Lancaster | A rating |
| Queen Street Finance Ltd | London | A rating |
| Queen Street Pharmacy ltd | Stoke-On-Trent | A rating |
| Queen Victoria Hospital NHS Foundation Trust | East Grinstead | A rating |
| Queen Victoria Seamens Rest | London | A rating |
| Queen's College, London | London | A rating |
| Queen's College, Taunton | Taunton | A rating |
| Queen's Crescent Community Association | London | A rating |
| Queen's Gate School Trust Limited | London | A rating |
| Queen's Lane Consultants Ltd | London | A rating |
| Queen's University Belfast | Belfast | A rating |
| Queenbee Nursery Limited | London | A rating |
| Queens Cosmetics Limited | London | A rating |
| QUEENS CRESCENT DENTAL PRACTICE LTD | BURGESS HILL | A rating |
| Queens Cross Housing Association Limited | Glasgow | A rating |
| Queens Fish Bar Ltd | Cardiff | A rating |
| Queens Head Inn | Harrogate | A rating |
| Queens Hospitality Ltd | London | A rating |
| Queens Lytham Limited | Freckleton | A rating |
| Queens Park Community School Academy Trust | London | A rating |
| Queens Park Rangers Football & Athletic Club Limited | London | A rating |
| Queens Road Surgery | Consett | A rating |
| Queens Road Surgery | Nuneaton | A rating |
| QUEENS SUPERMARKET LTD T/A Queens Supermarket | Milton Keynes | A rating |
| Queens Tower Advisory Limited | London | A rating |
| Queens' College | Cambridge | A rating |
| Queens' School | Bushey | A rating |
| Queensberry Nursery Limited | London | A rating |
| Queensferry Medical Practice | Queensferry | A rating |
| Queensfield Acquisitions Limited t/a Hypetex | Leighton Buzzard | A rating |
| Queensgate Hotel Edinburgh Ltd. T/A Hampton by Hilton Edinburgh West End | Edinburgh | A rating |
| Queensgate Hotels Limited T/A Holiday Inn Stevenage | Stevenage | A rating |
| Queensmead School | Middlesex | A rating |
| Queensmith (Group) Ltd | London | A rating |
| Queensthorpe Care Services Limited T/as Lugano Residence for the Elderly | Buckhurst Hill | A rating |
| Queensway Dental Practice | Milton Keynes | A rating |
| Queensway Homes LTD | Birmingham | A rating |
| Queensway Medical Centre | Wellingborough | A rating |
| Queensway Medical Centre | Please Select | A rating |
| Queensway Pharmacy | Milton Keynes | A rating |
| Queensway Services | Hemel Hempstead | A rating |
| Queenswood Engagement and Strategy Ltd | London | A rating |
| Queenswood School Limited | Hatfield | A rating |
| QUEEQUEG RENEWABLES LTD | London | A rating |
| Queercircle Limited | London | A rating |
| Quell Tech Ltd | London | A rating |
| Quell Therapeutics Ltd | London | A rating |
| Quentessential Surveying Ltd. | Lostock | A rating |
| Quera Computing UK Limited | Didcot | A rating |
| Quercus Real Assets Limited | London | A rating |
| QuerioAI t/a Querio | London | A rating |
| Querky Cafe LTD | London | A rating |
| Querky Forest Gate LTD | London | A rating |
| QUERKY SHADWELL LTD | London | A rating |
| QUERY CLICK LIMITED | Edinburgh | A rating |
| Quesh Ltd | Crewe | A rating |
| Quest Accounting Services Ltd | Milton Keynes | A rating |
| Quest Agency Limited | Harpenden | A rating |
| QUEST BUILDERS LTD | LONDON | A rating |
| Quest Corporate Ltd | Edinburgh | A rating |
| Quest Dental Ltd. | Armadale | A rating |
| Quest Global Engineering Limited | Derby | A rating |
| Quest Legal Advocates Limited | Manchester | A rating |
| Quest Meat Ltd | Edgbaston | A rating |
| QUEST PERSONAL CARE GLOBAL LTD | Manchester | A rating |
| Quest Recovery Services Limited | London | A rating |
| Quest Travel Limited | Croydon | A rating |
| Quest Underwater Services Ltd | Wareham | A rating |
| QuestDB LTD | London | A rating |
| Questionardo Ltd | London | A rating |
| Questmoor Limited T/A Questmoor Pharmacy | Potters Bar | A rating |
| Questo Technologies Ltd | Reading | A rating |
| Questpark Ltd t/a Care Chemist | Stanmore | A rating |
| QUESTROW LIMITED | St. Albans | A rating |
| Queue Associates Worldwide, UK, Limited | Farringdon | A rating |
| Queueco Limited | London | A rating |
| Quex Consultancy Limited | London | A rating |
| Quex road dental Surgery ltd | London | A rating |
| Qufora LTD | Macmerry | A rating |
| Quianto Capital Limited | London | A rating |
| Quianto Polo Limited | Oxfordshire | A rating |
| Quick & Easy Developments Ltd | Slough | A rating |