| Kellogg Brown & Root (UK) Ltd | Surrey | A rating |
| Kellogg Brown and Root Solutions Limited | Leatherhead | A rating |
| Kellogg U.K. Holding Company Limited | Salford | A rating |
| KELLTON TECH (UK) LIMITED | London | A rating |
| KELLTRON CONSULTING SERVICES UK LTD | AYLESBURY | A rating |
| KELLTRON SOFTWARE SOLUTIONS LTD | AYLESBURY | A rating |
| Kelly Adjusters Limited | Felsted | A rating |
| Kelly Communications Limited | London | A rating |
| Kelly Cycles T/A Wildside | Royal Tunbridge Wells | A rating |
| Kelly Hoppen Interiors Limited | London | A rating |
| KELLY OCG UK LTD | Telford | A rating |
| KELLY'S CARIBBEAN CUISINE LTD | WATFORD | A rating |
| Kelly's Cause Foundation | London | A rating |
| KellyDeli Company Limited | London | A rating |
| Kelmer UK Ltd | London | A rating |
| Kelmscott Properties Limited | ROMFORD | A rating |
| Kelotech LTD | Aylesbury | A rating |
| Kelp Industries t/a Kelpi | Bristol | A rating |
| Kelpie Geoscience Ltd. | Edinburgh | A rating |
| KELRAY LTD | Merthyr Tydfil | A rating |
| Kelso Cricket Club | Kelso | A rating |
| Kelso Dental Care | Kelso | A rating |
| KELSO SMILE LTD | KELSO | A rating |
| Kelston Sparkes Group Ltd | Bristol | A rating |
| Keltbray Management Services Limited | Esher | A rating |
| Keltic Seafare (Scotland) Limited | Dingwall | A rating |
| Keltic Traffic Management Limited | Middlesex | A rating |
| Keltie LLP | London | A rating |
| Kelton Engineering Limited | Aberdeen | A rating |
| Keltone Limited | Northampton | A rating |
| Keltruck Ltd | West Bromwich | A rating |
| Kelty Hearts Football Club Ltd | Kelty, Fife | A rating |
| KELUAR UK TRADING LTD | Stratford | A rating |
| Kelvin Construction Company Limited | Leicester | A rating |
| Kelvin Hotel | OBAN | A rating |
| Kelvinside Academy | Glasgow | A rating |
| Kelvion Limited | Fareham | A rating |
| KEM &TAN LTD | Leytonstone | A rating |
| KEMAT CONSULTING LIMITED | Ilford | A rating |
| KEMATIM CONCEPTS LTD | Lancashire | A rating |
| Kember and Jones Ltd | Glasgow | A rating |
| KEMEL EUROPE LTD | WASHINGTON | A rating |
| Kemet International Ltd | Maidstone | A rating |
| Kemet Ltd | Ilford | A rating |
| Kemexon UK Limited | London | A rating |
| Kemin UK Limited | Southport | A rating |
| Kemira Chemicals (UK) Ltd | Bradford | A rating |
| Kemlows Diecasting Products Ltd | Hoddesdon | A rating |
| Kemnal Technology College | Sidcup | A rating |
| Kemola Restaurant and Lounge Ltd | Bootle | A rating |
| Kempsey Ltd Trading as Pepes Piri Piri | SWANSEA | A rating |
| KEMPSON CONSTRUCTION LTD | Birmingham | A rating |
| Kempston Chinese Ltd | Kempston | A rating |
| KEMPSTON POST OFFICE | BEDFORD | A rating |
| KEMSI DESIGN LIMITED | LONDON | A rating |
| Kemsley Village Store Limited | Kent | A rating |
| KEMTEK LTD | Wallington | A rating |
| KEN DRYLINING LTD | GRAVES END | A rating |
| Ken Nguyen Trading as Whitchurch Nails | Cardiff | A rating |
| KEN'S AUTO SPARES LIMITED | Bulwell | A rating |
| KEN'S TAKEAWAY MIDLANDS LTD | Brierly Hill | A rating |
| Ken&Jim Trading Limited | Edinburgh | A rating |
| Kena Care Ltd | Burton On Trent | B rating |
| Kenamchi Limited T/A China Chef | Colchester | A rating |
| Kench Consultants Ltd | Rochester | A rating |
| Kendal & Carrott Ltd | Worthing | A rating |
| KENDAL & CARROTT LTD. | LONDON | A rating |
| Kendal Cricket Club | Kendal | A rating |
| Kendal Nutricare Limited | Kendal | A rating |
| Kendal Physiotherapy Centre Ltd | Kendal | A rating |
| KENDAL SMILE CENTRE LTD | Kendal | A rating |
| Kendalcourt Limited t/a Homepark | Eastleigh | A rating |
| KENDALL CARE LIMITED | Littlehampton | A rating |
| Kendalls News | Greenford | A rating |
| Kendis Group Ltd | Southampton | A rating |
| Kendon Packaging Group Plc | London | A rating |
| Kendra Energy Solutions Ltd | Bourne End | A rating |
| Kendrick School | Reading | A rating |
| Kene Partners Limited | London | A rating |
| Kenelm Youth Trust | Alton | A rating |
| KENFIGHIL SUPERSTORE LTD | KENFIG HILL | A rating |
| Kengineers ltd | EPSOM | A rating |
| Kenilworth Chiropractic Clinic Ltd | Kenilworth | A rating |
| Kenilworth Creations LTD | Newcastle Upon Tyne | A rating |
| Kenilworth Multi Academy Trust | Kenilworth | A rating |
| Kenilworth Wardens | Kenilworth | A rating |
| KENJI (UK) LIMITED | Birchwood | A rating |
| Kenjiro Private Office Limited | London | A rating |
| Kenkko Corporation Limited | London | A rating |
| Kenley Health Care Ltd | Peterborough | A rating |
| Kenman Holdings Limited | Isle of Lewis | A rating |
| Kenmore Care Holding Ltd | Bridport | A rating |
| Kenmore Ferndown Limited | Harrow | A rating |
| Kenmore Hamilton Park Limited | Harrow | A rating |
| Kenmore Management Limited | Harrow | A rating |
| KENN EXPORT LIMITED | Kent | A rating |
| Kenna Retails Limited | East Grinstead | A rating |
| kennedy street enterprises ltd. | cheshire | A rating |
| Kennedy Trading Limited | Radlett | A rating |
| Kennedy Wilson UK Limited | London | A rating |
| Kennedys Law LLP | London | A rating |
| Kennek Solutions Limited | London | A rating |
| Kennet and Avon Medical Partnership | Marlborough | A rating |
| Kennet Care | Theale | A rating |
| KENNET MOTORS LTD | SLOUGH | A rating |
| Kennet Partners Limited | London | A rating |
| Kennet School | Thatcham | A rating |
| Kenneth Davis (Works of Art) Limited | London | A rating |
| KENNETH LLOYDS (E1) LIMITED | LONDON | A rating |
| KENNETH MULLEN | KILLOUGH | A rating |
| KENNETH NG SURGERY LTD T/A Gooseberry Dental Practice. | Ipswich | A rating |
| KENNFORD HOTELS LIMITED | Harrow | A rating |
| Kennford Ltd | Harrow | A rating |
| KENNINGTON CAR SALES LIMITED | MILTON KEYNES | A rating |
| Kennington Off License Ltd | Kennington | A rating |
| Kenny Wax Ltd | London | A rating |
| KENNYKRAFTS LTD | Harlow | A rating |
| Kenoch Asset Management Ltd | Windsor | A rating |
| KENS CUBE LTD | LONDON | A rating |
| KENS ELECTRICAL & PROPERTY SERVICES LIMITED | Coulsdon | A rating |
| KENS ESTATE LTD | LONDON | A rating |
| KENS GLOBAL SUPPORT LTD | LONDON | A rating |
| KENS WATERLOOVILLE LIMITED | Waterlooville | A rating |
| Kensa Creative Ltd | Hortonwood West | A rating |
| Kensa Health Analytics Ltd | Plymouth | A rating |
| Kensa Health Home Care Ltd | Plymouth | A rating |
| Kensal Food and Wine | London | A rating |
| KENSAL RISE POST OFFICE | LONDON | A rating |
| KENSHOO (UK) LTD | LONDON | A rating |
| KENSIGNTON PARK DRY CLEANERS LTD | London | A rating |
| Kensington Aldridge Academy | Kensington | A rating |
| Kensington Clinic Ltd | London | A rating |
| Kensington College of Business | London | A rating |
| Kensington Cromwell Road Specsavers | London | A rating |
| Kensington Dental Clinic | London | A rating |
| Kensington Dry Cleaners (UK) Ltd | London | A rating |
| Kensington Express Ltd | South Kensington | A rating |
| KENSINGTON HAIR BOUTIQUE LTD | London | A rating |
| Kensington HC Ltd | Birmingham | A rating |
| Kensington Health Clinic Limited | London | A rating |
| Kensington Home Care Limited | Stockton | A rating |
| Kensington Hotels Ltd T/A Ambassadors Hotel | Harrow | A rating |
| Kensington Hounds Ltd | London | A rating |
| Kensington Indian Brasserie Ltd T/A. Khans of Kensington | London | A rating |
| Kensington Insurance Brokers Limited | London | A rating |
| Kensington INTL Ltd | Westcliff-On-Sea | A rating |
| Kensington Medical Clinic Limited | London | A rating |
| KENSINGTON MEDICAL CONSULTANCY LIMITED | London | A rating |
| Kensington Park School Limited t/a Kensington Park School | London | A rating |
| Kensington Partnership | Bradford | A rating |
| Kensington Plaza Hotel Limited | London | A rating |
| Kensington Press Limited | Essex | A rating |
| KENSINGTON PROPERTY ESTATES LTD | London | A rating |
| Kensington Property Investment Group Limited | London | A rating |
| KENSINGTON RG LTD | London | A rating |
| Kensington Solutions Limited | London | A rating |
| Kensington Spice Ltd | Buckinghamshire | A rating |
| Kenson Highways Limited | Rainham | A rating |
| Kensons Farm Limited | Salisbury | A rating |
| Kensulate Corporation Ltd T/A Crepslocker | Blackburn | A rating |
| KENSWORTH VILLAGE STORE | DUNSTABLE | A rating |
| Kent & Medway Mental Health NHS Trust | Maidstone | A rating |
| Kent and Medway Clinical Commissioning Group | Ashford | A rating |
| KENT BEST BUY LTD | Maidstone, Kent | A rating |
| Kent Business College Ltd | Maidstone | A rating |
| KENT CARE CONSULTANTS LTD | ASHFORD | A rating |
| Kent Care LTD | SITTINGBOURNE | A rating |
| Kent Catholic Schools' Partnership | Teston | A rating |
| Kent College Pembury | Tunbridge Wells | A rating |
| Kent Community Health NHS Foundation Trust | Ashford | A rating |
| KENT CONCRETE SERVICES LTD | Gravesend | A rating |
| Kent Connect Ltd | Canterbury | A rating |
| Kent County Council | Maidstone | A rating |
| Kent County Council Schools | Maidstone | A rating |
| Kent County Cricket Club | Canterbury | A rating |
| Kent Energies UK Ltd | Woking | A rating |
| Kent Equine Hospital | Maidstone | A rating |
| Kent Foods Limited | Paisley | A rating |
| Kent Home Care | CANTERBURY | A rating |
| Kent House Off Licence | Beckenham | A rating |
| Kent House Select Limited | Wolverhampton | A rating |
| Kent Implant Services Ltd. | Tonbridge | A rating |
| Kent Investments Ltd | London | A rating |
| Kent Invicta Chamber of Commerce, Industry & Enterprise Ltd | Ashford | A rating |
| KENT KERALA GROCERIES LTD | Royal Tunbridge Wells | A rating |
| KENT LEISURE AND HOSPITALITY LTD t/a The King Hotel Tenterden | Tenterden | A rating |
| KENT MOBILE TYRES SERVICES LIMITED | MAIDSTONE | A rating |
| Kent Pharma UK Limited | Ashford | A rating |
| KENT QUALITY BUTCHER LTD | Gravesend | A rating |
| Kent Residential Services Limited | Ashford | A rating |
| Kent Retail Ltd | Sidcup | A rating |
| KENT SECURITY SERVICES LTD | Southend-On-Sea | A rating |
| Kent Senior Care Ltd t/a Home Instead Folkestone,Hythe and Ashford | Folkestone | A rating |
| KENT SRI LANKAN BUDDHIST CULTURAL CENTRE | Sidcup | A rating |
| KENT ST WINES UK LTD | Hayes | A rating |
| Kent Trader Limited | Dartford | A rating |
| Kent Ultrasound Studio Ltd T/A Window to the Womb Maidstone Ltd | Maidstone | A rating |
| Kentallen Leisure Ltd | Kentallen | A rating |
| Kentbrim Ltd | Daventry | A rating |
| Kentech Instruments Ltd | Wallingford | A rating |