| JK&K Limited | London | A rating |
| JK1 Developments Ltd | Romford | A rating |
| JK19 LTD T/A Nisa Local | CULLOMPTON | A rating |
| JKA INFOTECH LIMITED | Leeds | A rating |
| JKB Convenience Store LTD | Northampton | A rating |
| JKD Retail Limited | Newcastle Upon Tyne | A rating |
| JKDRG LTD. | London | A rating |
| JKI GROUP LTD | London | A rating |
| JKL Care Service LTD | Hamilton | A rating |
| JKL Networks Ltd | London | A rating |
| JKO HOLDINGS LTD | London | A rating |
| JKP Manchester Limited | Blackburn | A rating |
| JKR PHARMA LTD | London | A rating |
| JKS ESSEX CONVENIENCE STORES LTD | Grays | A rating |
| JKS Indian Restaurants Limited | London | A rating |
| JKS Pubs Ltd | London | A rating |
| JKS Restaurants Holdings Ltd | London | A rating |
| JKS STORES LTD | SUNDERLAND | A rating |
| JKS TRANSPORT LTD | Oxford | A rating |
| JKV STORES LTD T/A LONGLEAZE STORES | Swindon | A rating |
| JL CONVENIENCE SHOP LTD | Essex | A rating |
| JL IT Consulting Limited | Slough | A rating |
| JLA Limited | Ripponden | A rating |
| JLA Speakers Ltd | London | A rating |
| JLC (UK) SG Limited | London | A rating |
| JLC Distribution Ltd | Clevedon | A rating |
| JLE | London | A rating |
| JLG Industries (United Kingdom) Limited | Manchester | A rating |
| JLG Legal Limited | Manchester | A rating |
| JLIRAL LTD | Boston | A rating |
| JLKare and Support Limited | Bromsgrove | A rating |
| JLMMCG Ltd t/a Oris Dental & Implant Studio | Monifieth | A rating |
| JLP Cosmetics Ltd | Market Rasen | A rating |
| JLP MEAT TRADING LTD | London | A rating |
| JLR Construction & Engineering Limited | Neath | A rating |
| JLR ENGINE LIMITED | Feltham | A rating |
| JLR PARK LTD | Swindon | A rating |
| JLSV RETAIL LTD | Shildon | A rating |
| JLT Electrical Contractors Limited | Peterlee | A rating |
| JLTC Ltd. | London | A rating |
| JLVO French Real Estate Consulting Limited | Hove | A rating |
| JM (UK) Ltd | LOUGHBOROUGH | A rating |
| JM & SONS INVESTMENTS LTD | London | A rating |
| JM & W Turnbull | St Andrews | A rating |
| JM Brands Ltd. | Bedford | A rating |
| JM Carehomes Ltd. | Westcliff-on-Sea, Essex | A rating |
| JM CLARK LTD | Rettendon | A rating |
| JM Classics Limited | London | A rating |
| JM CONSULTING LIMITED | Barking | A rating |
| JM Convenience Store Limited | Luton | A rating |
| JM Finn & Co Limited | London | A rating |
| JM Fusion Ltd | Dartford | A rating |
| JM Global Ltd | Cambridge | A rating |
| JM REFRIGERATION LIMITED | BOLTON | A rating |
| JM Success Ltd | Potters Bar | A rating |
| JM.GSK LTD | Wigan | A rating |
| JM4 Foods Limited t/a London Burgers | London | A rating |
| JMA ENGINEERING LTD | Croydon | A rating |
| JMAN Group Limited | London | A rating |
| JMARCHITECTS LTD | EDINBURGH | A rating |
| Jmazra Ltd T/A Johnnos Pizza | Reading | A rating |
| JMB Design & Construction Ltd | London | A rating |
| JMC Aviation Ltd | Exeter | A rating |
| JMC Care Ltd | Croydon | A rating |
| JMC PACKAGING LTD | CRAIGAVON | A rating |
| Jmc Physiocures | Glasgow | A rating |
| JMCO WHOLESALE LTD T/A JMCO FOODS | BIRMINGHAM | A rating |
| JMD (London) Ltd T/A Fratelli Deli | London | A rating |
| JMD Bristol Limited trading as Ashley Convenience Store | Bristol | A rating |
| JMD BRISTOL PROPERTIES LIMITED | Bristol | A rating |
| JMD Enterprises UK LTD | Southall | A rating |
| JMD FASTFOOD SERVICES LIMITED T/A Grillshack Havant | Havant | A rating |
| JMD Hospitality Limited | Sheffield | A rating |
| JMD International Services Limited | Law | A rating |
| JMD Railtech Limited | York | A rating |
| JMD Restaurants (Cardiff) Limited | Cardiff | A rating |
| JMDI LTD | Ferryhill | A rating |
| JME Strategy Limited | London | A rating |
| JMG CARGO & TRAVEL LIMITED | London | A rating |
| JMG GROUP INVESTMENTS LIMITED | Leeds | A rating |
| JMG PVT LTD | Rainham | A rating |
| JMG STORE LTD T/A CROWN MEAD STORES | THATCHAM | A rating |
| JMG Systems | Omagh | A rating |
| JMI Salons Limited | London | A rating |
| JMJ Associates | London | A rating |
| JMJ Associates Ltd | London | A rating |
| JMJ FOODS LTD | Poole | A rating |
| JMJ IMPORTS & EXPORTS LTD | London | A rating |
| JMJ RECRUITMENT LTD | Dudley | A rating |
| JMJ Surrey Ltd T/A ESSO Shepperton | Shepperton, Surrey | A rating |
| JMJK 1 LIMITED | Manchester | A rating |
| JMK Group Services Limited | London | A rating |
| JML | Chiswick | A rating |
| JML Accountancy Services Ltd | Rochdale | A rating |
| JML Contracts Ltd | Aberuthven | A rating |
| JML London Property Ltd. | London | A rating |
| JMN Richardson Ltd | Shipley | A rating |
| JMN Scotland Ltd | Rosyth | A rating |
| JMP (Leeds) Limited TA Domino's Pizza | Liverpool | A rating |
| JMP (Liverpool) Limited TA Dominos' Pizza | Liverpool | A rating |
| JMP Consulting Engineers ltd | Welwyn Garden City | A rating |
| JMP Precision Engineering Ltd | Bristol | A rating |
| JMR Wholesale Ltd | Birmingham | A rating |
| JMS BFD Ltd t/a Copley Pest Control | Leeds | A rating |
| JMS Engineers London Ltd | Suffolk | A rating |
| JMS INFOTECH LIMITED | Milton Keynes | A rating |
| JMS Janitorial Suppliers | Redhill | A rating |
| JMS PROPERTIES (SCOTLAND) LTD | Airdrie | A rating |
| JMS Recordz Worldwide Productions House Ltd | BURNHAM | A rating |
| JMS Trading Limited | Birmingham | A rating |
| JMT ENGINEERING (LADBROKE) LTD | SOUTHAM | A rating |
| JMW Farms Ltd | Killylea | A rating |
| JMW Solicitors LLP | Manchester | A rating |
| JMW Vicary Limited | Teddington | A rating |
| JN Bank UK Ltd | London | A rating |
| JN CIVILS LIMITED | PRESTON | A rating |
| JN COMMUNITY CARE LTD | Bilston | A rating |
| JN DESIGN AND BUILD LTD | Harrow | A rating |
| JN Foods Ltd | London | A rating |
| JN Money Services (UK) Limited | London | A rating |
| JNB Transport Limited | Nottingham | A rating |
| JNC UK Consulting Limited | Reading | A rating |
| Jndc LTD | Kingston-Upon-Thames | A rating |
| JNE Partners LLP | London | A rating |
| JNF | London | A rating |
| JNJ Detailing Ltd | Halesowen | A rating |
| JNJ Health Limited | Holywell | A rating |
| JNJ TWO LIMITED T/A Sanjugo Victoria | London | A rating |
| JNN (JAST-SAFE HOME CARE) LTD | Welwyn Garden City | A rating |
| JNP Group Consulting Engineers Ltd | Amersham | A rating |
| JNPK Limited | Wolverhampton | A rating |
| JNR SKANKS LTD | Birmingham | A rating |
| JNSF PHARMA LIMITED T/A MEDILAND PHARMACY | ERDINGTON | A rating |
| JNSHOPFITTERS LIMITED | ILFORD | A rating |
| JO COWEN ARCHITECTS LTD | London | A rating |
| Jo Jo Foods Ltd | Salford | A rating |
| Jo Properties Ltd | Brentwood | A rating |
| JO SHOWA TRADING LTD | LONDON | A rating |
| JOA&IMA LIMITED Trading as Two Chefs Indian Restaurant | Weston-Super-Mare | A rating |
| Joan Technologies Ltd | Milton Keynes | A rating |
| JOAN'S CARERS LIMITED | Helensburgh | A rating |
| Joann Kerr T/A New Dawn Tattoo | Belfast | A rating |
| Joanna Trading Limited | London | A rating |
| Joanne Powlson | Bromley | A rating |
| JOAQUIN LTD | London | A rating |
| Job Bank Recruitment Network LTD | Blackburn | A rating |
| Job Boards Media Ltd | Bracknell | A rating |
| JOB Light Limited | London | A rating |
| Job N Job (UK) Ltd | Hounslow | A rating |
| JOB PROTOCOL LABS LTD | London | A rating |
| JOBA INTERNATIONAL LONDON LTD | LONDON | A rating |
| Jobandtalent UK Limited | London | A rating |
| JobLadder Limited | Hampton Wick | A rating |
| JobLookup Ltd | London | A rating |
| Jobs Plus Ltd | Battle | A rating |
| Jobs That Sponsor Limited | London | A rating |
| JOBTODAY UK LIMITED | London | A rating |
| JOCA Limited | London | A rating |
| Jocasta Neuroscience UK Ltd | London | A rating |
| Jodhpur Limited | Leeds | A rating |
| Jodi Limited T/A Rangoli Restaurant | Liverpool | A rating |
| Joe and the Juice UK Ltd | London | A rating |
| Joe Joes Chicken & Ribs Ltd | St Leonards-On-Sea | A rating |
| Joe Kelly Haulage Ltd | London | A rating |
| Joe Macari Classics Limited | London | A rating |
| Joe Santhiapillai T/A Winston Service Station | Kent | A rating |
| JOE'S MASALA HUT LTD, TRADITIONAL INDIAN TAKEWAY | COVENTRY | A rating |
| Joe's Restaurants Ltd | Oxford | A rating |
| JOEBE UK LTD | Chelmsford | A rating |
| Joechris Care Ltd | Glasgow | A rating |
| Joel Gustafsson Consulting Limited | Cambridge | A rating |
| JOEL O LTD | Chorley | A rating |
| JOELSA LTD | Leicester | A rating |
| JOESYL COURIER SERVICES LIMITED | Middlesex | A rating |
| Joffe Books Limited | London | A rating |
| JOGMEC(Japan Organization for Metals and Energy Security) | London | A rating |
| Joh. Berenberg, Gossler & Co. KG, London Branch | London | A rating |
| Joha Limited | Chesterfield | A rating |
| JOHAL & CO | South Harrow | A rating |
| Johal And Deol Ltd T/A Narborough Convenience Store & Premier | Leicester | A rating |
| Johal Architectural Fabrications Ltd TA EURO SHOPFITTERS | Rainham | A rating |
| Johal Brothers Halifax Limited | Halifax | A rating |
| Johal Brothers Transport Limited | Walsall | A rating |
| JOHAL COVENTRY LIMITED | Coventry | A rating |
| Johal Dairies Limited | Wolverhampton | A rating |
| JOHAL ELECTRICAL WORKS LIMITED | West Bromwich | A rating |
| JOHAL RETAILERS LIMITED | Sunderland | A rating |
| JOHAL SUPERMARKET (UK) LTD | Birmingham | A rating |
| Johav Care Support Healthcare Limited | MILTON KEYNES | A rating |
| John & Jessica Dance | Newcastle upon Tyne | A rating |
| JOHN & PASCALIS LTD | London | A rating |
| John Ali Builders Ltd | London | A rating |
| John Alistair Ross Johnston and the Trustees of the Late Mrs Deborah J Jess Johnston t/a Johnston Horsefeeds | Salisbury | A rating |
| JOHN AND SMITH LTD | Yeovil | A rating |
| John Arnold Commercials Ltd | Wilstead | A rating |
| John Atkinson Interiors Limited | Morley | A rating |
| John Atkinson Interiors Limited | Leeds | A rating |
| JOHN BARNES SUSHI LTD | London | A rating |
| John Bean Technologies Limited | Livingston | A rating |
| JOHN BINNS SPRINGS A CGR COMPANY LIMITED | SKIPTON | A rating |