| John Brown University Northern Ireland | Belfast | A rating |
| JOHN BULL CONVENIENCE STORE | MEXBOROUGH | A rating |
| John Clark (Holdings) Limited | Aberdeen | A rating |
| John Colet School | Aylesbury | A rating |
| John Cotton Group Limited | Mirfield | A rating |
| John Cox Cold Stores & Distribution Services Ltd | Walsall | A rating |
| John Crane UK Limited | Slough | A rating |
| John Crook & Partners | London | A rating |
| John Cullen Lighting Limited | Fulham | A rating |
| John Deere Limited | Langar | A rating |
| John Dewey Specialist College / Area51 Education | London | A rating |
| John Dickson & Son Ltd. | Dunkeld | A rating |
| JOHN DOE GROUP LIMITED | London | A rating |
| JOHN E FELLS & SONS LTD | KINGS LANGLEY | A rating |
| John Fowler Holdings Ltd | Barnstaple | A rating |
| John Frieda Salons Limited | London | A rating |
| John G Plummer and Associates | Caister-on -Sea | A rating |
| John G. Lake Ministries UK & IE | Oxford | A rating |
| John Galvin Design Limited | Clydebank | A rating |
| John Garland | Stevenage | A rating |
| John Gilbert Architects Limited | Glasgow | A rating |
| John Graham Construction Limited | Hillsborough | A rating |
| John Grimes Partnership Ltd | Ivybridge | A rating |
| John Gunn and Sons Ltd | Lybster | A rating |
| John Haining | New Port | A rating |
| John Hampden Grammar School | High Wycombe | A rating |
| John Harvey Engineering | Framlingham | A rating |
| John Hellyar and Co Ltd | Whitstable | A rating |
| John Hitch Seating Limited | London | A rating |
| John I Forbes & Partner | Kinneff | A rating |
| John Ingham Towing Limited | Preston | A rating |
| JOHN J DOYLE LTD | Belfast | A rating |
| john j higgins | magherafelt | A rating |
| John Jenkins Racing | Royston | A rating |
| John Julian | Salisbury | A rating |
| John King Chains Limited | Leeds | A rating |
| JOHN LAWSONS CIRCUS LIMITED | BIDDENDEN ROAD | A rating |
| JOHN LEE CONSTRUCTION LIMITED | High Wycombe | A rating |
| John Lennards Accountants Ltd | NORBURY | A rating |
| JOHN LILLEY AND GILLIE LTD | NORTH SHIELDS | A rating |
| John Lloyd Antique Ltd | Shanklin | A rating |
| JOHN LOBB LTD. | London | A rating |
| JOHN LOGISTICS LIMITED | Wolverhampton | A rating |
| JOHN LUTHERS LTD | Rainham | A rating |
| John Mackle (Moy) Ltd T/A Mackle Petfoods | Dungannon | A rating |
| John MacMahon & Co. Ltd | Belfast | A rating |
| John McAslan & Partners Ltd | London | A rating |
| JOHN MCCOLM LTD | STRANRAER | A rating |
| John McDowell Limited | Belfast | A rating |
| John McGowan Auto Body Repair | Enniskillen | A rating |
| John McQuillan (Contracts) Limited | Lisburn | A rating |
| John Miller Upholstery Ltd. | Shepperton | A rating |
| John Mulholland Motors Ltd | Randalstown | A rating |
| John Newton & Company limited | tonbridge | A rating |
| John O'Conner(Grounds Maintenance) Ltd | Welwyn | A rating |
| John Packer Limited | Wiltshire | A rating |
| John Pass Jewellers | Crewe | A rating |
| John Paton & Son Limited | Glasgow | A rating |
| John Paul Clarkin | Cheltenham | A rating |
| John Paul Construction Limited | Bracknell | A rating |
| John Pawson Limited | London | A rating |
| John Puttick Associates Limited | London | A rating |
| JOHN QUINN RACING LTD | MALTON | A rating |
| John Reilly Civil Engineering Ltd | Park Gate | A rating |
| John Rich Architects Limited | Richmond | A rating |
| John Rigby and Co | London | A rating |
| John Robertson Architects | London | A rating |
| John Robson | East Grinstead | A rating |
| John Roe Group Limited | Hull | A rating |
| John Ross (Chemists) Limited | ELLON | A rating |
| John Samonas and Sons ltd | Kingston upon Thames | A rating |
| John Scott Work | Wolverhampton | A rating |
| JOHN SHAW AND SON LIMITED | Lancashire | A rating |
| John Simpson Architects | London | A rating |
| John Sisk & Son Ltd | St. Albans | A rating |
| John Smith & Son Group Ltd | Southampton | A rating |
| John Spary Associates | London | A rating |
| John Street Capital Limited | London | A rating |
| John Thompson & Partners (JTP) LLP | London | A rating |
| John Vallance | Glasgow | A rating |
| JOHN WARE LIMITED | Somerset | A rating |
| John West Foods Limited | Liverpool | A rating |
| John White & Son (Weighing Machines) Ltd | Cupar | A rating |
| John Wiley & Sons Limited | Bognor Regis | A rating |
| John Williams & Co Limited | Surrey | A rating |
| John Wilson Chemist | London | A rating |
| JOHN'S ENTERPRISES LIMITED | SR5 2BT | A rating |
| JOHN'S OFF LICENCE | Sheffield | A rating |
| JohnJasper Associates Ltd | Newcastle upon Tyne | A rating |
| JOHNNY GOGGLES LTD | LIVERPOOL | A rating |
| JOHNS SUPREME FRIED CHICKEN LIMITED | Bristol | A rating |
| JOHNS&CO | London | A rating |
| Johnsen Inc Ltd | London | A rating |
| Johnson & Johnson Medical Ltd | West Lothian | A rating |
| Johnson & Phillips (Capacitors) Limited | Newport | A rating |
| JOHNSON AMOO CONSULTANCY LIMITED | DERBY | A rating |
| JOHNSON ANALYTICA LIMITED | Oldbury | A rating |
| Johnson and Lubbock Partners Limited | Long Eaton | A rating |
| Johnson And Sons Colchester Ltd T/A Johnson and Sons | Essex | A rating |
| JOHNSON AUTOS LIMITED | London | A rating |
| Johnson Care Ltd | Westcliff on sea | A rating |
| Johnson Elborne UK Limited | London | A rating |
| Johnson James Care Limited | Leicester | A rating |
| Johnson Matthey Davy Technologies Limited | London | A rating |
| Johnson Matthey Plc | London | A rating |
| Johnson Motors | Watford | A rating |
| Johnson Naylor LLP | London | A rating |
| Johnson Pinney Architects Limited | London | A rating |
| Johnson Ribolla | London | A rating |
| Johnson Textiles Ltd | Bradford | A rating |
| JohnsonHolidays Limited | Nottingham | A rating |
| Johnsons Financial Management Limited | Ealing | A rating |
| JOHNSONS MORTGAGES LIMITED | London | A rating |
| Johnsons Textile Service Ltd T/A Johnsons Hotel Linen | Preston Brook | A rating |
| Johnsons Textile Services Limited | Preston Brook | A rating |
| Johnston Carmichael (Scotland) Limited | Aberdeen | A rating |
| Johnston Properties Limited | Belfast | A rating |
| Johnston Racing Limited | Leyburn | A rating |
| Johnston Shopfitters UK Ltd | Doncaster | A rating |
| Johnston's Home Care LTD | Enfield | A rating |
| Johnstone Food Ltd | Johnstone | A rating |
| JOHNSTONE HOLDINGS LTD T/A SHIMLA PINKS | JOHNSTONE | A rating |
| Johnstones Homecare | Bourn | A rating |
| Johnstons of Elgin | Elgin | A rating |
| Johnstown Convenient Store Limited | Wrexham | A rating |
| JOHNY ACE PAINTERS LIMITED | Walsall | A rating |
| JOIN CAMPUS LIMITED | London | A rating |
| join hands care ltd | luton | A rating |
| Join Homecare LTD | Cambridge | A rating |
| JOIN HOUSING LIMITED | London | A rating |
| Join Odin Ltd | London | A rating |
| Join Ploy Ltd t/a Ploy | London | A rating |
| Join the Claim Limited | Sheffield | A rating |
| Join the Dots (Research) Ltd | Manchester | A rating |
| Join the Loop Ltd | CHICHESTER | A rating |
| Joinery and Timber Creations (65) Limited | Dundee | A rating |
| Joining hands healthcare | bedford | A rating |
| Joint and Spine Ltd | London | A rating |
| JOINT COUNCIL FOR THE WELFARE OF IMMIGRANTS | London | A rating |
| Joint London Limited | London | A rating |
| Joint Motivation Ltd | Aylsham | A rating |
| Joint Nature Conservation Committee | Peterborough | A rating |
| Joint Operations Limited | Swindon | A rating |
| Joint View Limited | London | A rating |
| JointMedica Limited | Worcester | A rating |
| JOJ Powell & Partners | Swansea | A rating |
| JOJO STAT LTD | Southampton | A rating |
| JOJO'S RETAIL LTD | Bristol | A rating |
| JOJU LIMITED | LONDON | A rating |
| Joker Charlie Club 1636 Limited | London | A rating |
| Jokey UK Limited. | Corby | A rating |
| Jolene Farmer Studio Ltd | London | A rating |
| Jolens Ltd | London | A rating |
| JOLIE NAILS & SPA LIMITED | London | A rating |
| JOLIE SKIN CO. UK LTD | LONDON | UK Expansion Worker: Provisional |
| Jolliary Building Services Limited | Stanmore | A rating |
| Jolliman Essentials Limited | West Bromwich | A rating |
| Jollof City Ltd | London | A rating |
| Jollofe Ltd | Rainham | A rating |
| JOLLY MILLER LTD | DERBY | A rating |
| Jolly Catering Limited | Wolverhampton | A rating |
| Jolly Good Food and Wine | London | A rating |
| JOLLY PAN PARLOUR LIMITED | LONDON | A rating |
| JOLLYMILLER ONE LTD T/A GO LOCAL EXTRA STORE | Derby | A rating |
| jollys coffee ltd | beaumaris | A rating |
| Jolsha Marton Limited | Cleveland | A rating |
| Jolt Global Ltd | London | A rating |
| JOMICH FIT CREATIVE LIMITED | London | A rating |
| JOMSOM FOOD LTD | Liverpool | A rating |
| JOMSOM NEPALESE LTD | Liverpool | A rating |
| Jomuna Enterprises Ltd T/A Nilsa Supermarket | London | A rating |
| Jon Atkin Limited t/a Kasa | Leeds | A rating |
| Jon Carter and Nina Carter | Etchingham | A rating |
| Jon Matthews Architects Limited | Manchester | A rating |
| JON Optical LTD | LONDON | A rating |
| JONA'S KITCHEN LTD T/a Oriel Cafe | Llandudno | A rating |
| Jonas Collections and Recovery Limited | Wallingford | A rating |
| Jonas Computing (UK) Limited | Wallingford | A rating |
| Jonas Metals Software Limited | Wallingford | A rating |
| JONATHAN & WOLF LTD | Bristol | A rating |
| Jonathan Boateng T/A Afro Shop | Wellingborough | A rating |
| Jonathan Carey Design Ltd | Crosshills, | A rating |
| Jonathan Clark Architects Ltd | London | A rating |
| Jonathan Elliott Wealth Management Ltd | London | A rating |
| Jonathan Lu Limited | London | A rating |
| Jones & Duffin Solicitors (Leicester) Limited | Leicester | A rating |
| Jones & Wagener International Ltd | Milton Keynes | A rating |
| Jones & Wagener UK Limited | Milton Keynes | A rating |
| Jones and Palmer Ltd | Birmingham | A rating |
| Jones AV Limited | Birkenhead | A rating |
| Jones Belgravia Ltd T/A The Jones Family Kitchen | Belgravia | A rating |
| JONES BODY & PAINTWORK LTD | Romford | A rating |
| Jones Bros. Ruthin (Civil Engineering) Co. Ltd. | Ruthin | A rating |
| Jones Crumpets Ltd | London | A rating |
| Jones Day | London | A rating |
| Jones Engineering Group Ltd | London | A rating |
| Jones FM LLP | Dartford | A rating |
| Jones HFE Agriculture | Chester | A rating |
| Jones King Partnership Ltd | BRISTOL | A rating |
| Jones Knowles Ritchie Ltd | London | A rating |