| Quick Accountancy Solutions Limited | Ilford | A rating |
| QUICK ACCOUNTAX LIMITED | Keighley | A rating |
| Quick and Sons Farm Limited | Taunton | A rating |
| Quick Bargains Limited | Keighley | A rating |
| QUICK BUILD CONSTRUCTION LTD | Wolverhampton, | A rating |
| QUICK BUILDERS LTD | Birmingham | A rating |
| QUICK CAB SERVICES LTD | Ipswich | A rating |
| QUICK CONCRETE LTD | Windsor | A rating |
| QUICK Corp. London Branch | London | A rating |
| QUICK FIX AUTO PARTS AND CAR SERVICES LTD | Croydon | A rating |
| QUICK FIX MOBILE LIMITED T/A PHONE PLAZA | Chichester | A rating |
| Quick Fox Labs | London | A rating |
| QUICK FRESH LTD | High Wycombe | A rating |
| Quick Hair Style Oldham Ltd | Greater Manchester | A rating |
| Quick Hire (London) Limited | London | A rating |
| Quick International Couriers (UK) Limited | Uxbridge | A rating |
| QUICK LINK CONSULTANCY LIMITED | Rainham | A rating |
| QUICK MART CONVENIENCE LTD | Mancheste | A rating |
| Quick Mix London Ltd | West Drayton | A rating |
| Quick Mobile Repair Limited | Chippenham | A rating |
| Quick One Ltd | Batley | A rating |
| Quick Pest Control Limited | Ilford | A rating |
| Quick Pest Control London Limited | London | A rating |
| QUICK PEST CONTROL U.K LTD | Hayes | A rating |
| QUICK PICK GROCERY LTD | London | A rating |
| Quick Picks (UK) Limited | Harrow | A rating |
| Quick Play Sport Ltd | Sheffield | A rating |
| QUICK PRINTING LTD | Dartford | A rating |
| QUICK PURSUE LTD | BIRMINGHAM | A rating |
| Quick Release (Automotive) Limited | Leigh on Sea | A rating |
| Quick Respond Security Ltd | Newcastle upon Tyne | A rating |
| QUICK RIDE COORDINATION LTD | London | A rating |
| Quick Shopfronts Limited | Hounslow | A rating |
| Quick Shopping | Lewisham | A rating |
| QUICK SIMPLE MARKETING LTD | London | A rating |
| Quick Solz Limited | Romford | A rating |
| QUICK SPEED COURIER SERVICES LIMITED | Wednesbury | A rating |
| QUICK STOP AUTOS LTD | Romford | A rating |
| QUICK STOP NEWS AND BOOZE | PRESTON | A rating |
| QUICK STUDY LTD | Birmingham | A rating |
| Quick To Act Ltd | London | A rating |
| Quick Up Limited | Rochdale | A rating |
| Quickers PVT Ltd | Croydon | A rating |
| QUICKFIX PLUMBING (PRESTON) LTD | Preston | A rating |
| QUICKFIX JOBS LTD | Ilford | A rating |
| QUICKFIX LONDON BODY REPAIR LTD | IVER | A rating |
| Quickfix Phones Limited T/a Retail Phone Accessories | Castleford | A rating |
| QUICKHAVEN LIMITED | LONDON | A rating |
| Quicklink Video Distribution Services Limited | Swansea | A rating |
| Quickmove 24/7 Ltd | London | A rating |
| Quickparts UK Ltd | High Wycombe | A rating |
| QUICKSEAL (UK) Ltd | Aylesbury | A rating |
| Quicksharp Limited | Gawcott | A rating |
| Quicksolve Accountants Ltd | Manchester | A rating |
| QUICKSTARCLEANING LIMITED | Grays | A rating |
| QUICKSTOP STORES LTD | ACKLAM ROAD | A rating |
| Quickway Ltd | Liverpool | A rating |
| Quiddity Group Limited | London | A rating |
| Quidie limited t/a Fernovo | Croydon | A rating |
| Quidity Limited | Leicester | A rating |
| Quidos Technologies | Bath | A rating |
| Quiet Waters Christian Retreat House | Bungay | A rating |
| Quiet Waters Fishing Company Limited | Lerwick | A rating |
| Quietroom Limited | London | A rating |
| QUIK FOODS LTD T/A NABZYS | Liverpool, Merseyside | A rating |
| Quikr Ltd | Aylesbury | A rating |
| Quil Care Group Limited | Telford | A rating |
| Quilfords Ltd | London | A rating |
| Quilliam Marr Accountancy Ltd | Birmingham | A rating |
| Quillon Law LLP | London | A rating |
| Quilter Business Services Ltd | London | A rating |
| Quilvest Capital Partners UK Limited | London | A rating |
| Quin Design Limited | London | A rating |
| Quin Global (UK) Ltd | Perth | A rating |
| Quinbrook Infrastructure Partners Limited | London | A rating |
| Quinine Design Limited | London | A rating |
| Quinn (London) Limited | London | A rating |
| Quinn Building Supplies LTD | Dungannon | A rating |
| QUINN DOMICILIARY AGENCY LTD | MALDON | A rating |
| Quinn Emanuel Urquhart & Sullivan UK LLP | London | A rating |
| Quinn Estates Ltd | Canterbury | A rating |
| Quinn Hearse & Limousine Ltd | Ballymena | A rating |
| Quinn Piling Limited | Downpatrick | A rating |
| QUINNOX LIMITED | LONDON | A rating |
| QuinnRoss Consultants Ltd | Sittingbourne | A rating |
| Quint Education | London | A rating |
| Quint Group Limited | Macclesfield | A rating |
| Quintain Services Limited | London | A rating |
| Quintech Business Management Solutions Ltd | TEWKESBURY | A rating |
| Quintessence Beauty Limited | London | A rating |
| Quintessence Fragrances Limited | Newhaven | A rating |
| Quintessential Brands UK Holdings Limited | Warrington | A rating |
| Quintessential Design Services Limited | Coventry | A rating |
| Quintessentially Spice LTD | Luton | A rating |
| Quintessentially UK Ltd | London | A rating |
| Quinton House Limited | Stratford upon Avon | A rating |
| QUINTON SUPERSTORE LTD | Wolverhampton | A rating |
| Quinyx UK Limited | London | A rating |
| Quipu TV Limited | Glasgow | A rating |
| Quiq Limited | Elstead Surrey | A rating |
| Quiqui Mezcal Ltd | London | A rating |
| Quirky Frog Ltd | Manchester | A rating |
| QUIST LTD | HASLEMERE | A rating |
| Quiz Room UK Ltd | London | A rating |
| Quizchoice Ltd | London | A rating |
| Quizlet Limited | London | A rating |
| QUL Technologies Limited | Waterloo | A rating |
| Qumata Group Ltd | London | A rating |
| QUMILY LTD | SURBITON | A rating |
| Qumin Ltd | London | A rating |
| QUMIN TAKEAWAY LTD T/A Qumin | Reading | A rating |
| Qumran Care Limited | Truro | A rating |
| Qumu Ltd | London | A rating |
| Qumulo Limited | Crewe | A rating |
| QUMULUS TECHNOLOGY LIMITED | MANCHESTER | A rating |
| Quo Vadis Trust | London | A rating |
| Quod Financial Ltd | London | A rating |
| Quod Limited | London | A rating |
| Quod Orbis Limited | London | A rating |
| Quodox Training Limited | London | A rating |
| QUOILE SERVICES LTD | Warrington | A rating |
| Quomatic Solution Limited | London | A rating |
| QUOOKER UK LTD | Manchester | A rating |
| Quor Group Limited t/a Quoreka | Histon | A rating |
| Quori Limited | London | A rating |
| QUORIS 3D LIMITED | IRVINESTOWN | A rating |
| Quoris3D Limited | Killadeas | A rating |
| Quorn Country Foods Limited | Coalville | A rating |
| Quorn Lodge Limited | Melton Mowbray | A rating |
| Quorso UK Limited | London | A rating |
| Quorum Cyber Security Limited | Edinburgh | A rating |
| Quorum Development Limited | Sedgefield | A rating |
| Quote me Today Ltd | Canterbury | A rating |
| Quote Velocity Limited | Portsmouth | A rating |
| Quotevine Ltd | Bedford | A rating |
| Quotient Sciences | Nottingham | A rating |
| Quotient Therapeutics Limited | Little Chesterford | A rating |
| Qurated Network Ltd | London | A rating |
| QURBAN & SONS CATERERS LTD | Derby | A rating |
| Qure Group Ltd | Manchester | A rating |
| QURECA LTD | Glasgow | A rating |
| Qured Health Ltd | London | A rating |
| QURESHI IMPEX LTD Trading as Cheeky Chicken | Cleckheaton | A rating |
| Qureshis food ltd | Wigan | A rating |
| QURTUBAH LTD | London | A rating |
| QUSON LAW LTD | London | A rating |
| QUSON LTD | London | A rating |
| QUTONE VENTURESCERA LTD | Liverpool | A rating |
| Quvara Medical Limited | Swindon | A rating |
| QV Bioelectronics Ltd | Nether Alderley | A rating |
| QVC UK | London | A rating |
| Qvest Media Limited | Henley-On-Thames | A rating |
| Qvis Monitoring Ltd | Havant | A rating |
| QW Accommodation LTD | Hull | A rating |
| Qwilt UK Limited | London | A rating |
| QX Limited | North Yorkshire | A rating |
| QY Intertec Limited | London | A rating |
| QYH Limited | Birmingham | A rating |