| Kaleidoscope Health & Care Community Interest Company | London | A rating |
| Kaleidoscope Home Entertainment Limited | London | A rating |
| Kaleidoscope Learning Trust | NORTHWICH | A rating |
| Kaleidoscope Project | Cardiff | A rating |
| Kaleidoscope Solutions Limited | York | A rating |
| KALER SUPERSTORE LIMITED | Dawley | A rating |
| Kaleyra UK Limited | London | A rating |
| KALHAN LIMITED | London | A rating |
| Kali Mirchi UK Limited | Southampton | A rating |
| Kalibrate Technologies Limited | Manchester | A rating |
| KALIKA JI LTD | Gloucester | A rating |
| KALISAN UK LTD | Milnthorpe | A rating |
| Kalisco Ltd | Croydon | A rating |
| Kalisi Construction Ltd | Bristol | A rating |
| Kalki Health Limited | Northampton | A rating |
| Kalki Tech Services Limited | Wembley | A rating |
| KALLA HOLDINGS LTD | London | A rating |
| Kallanish Ltd | London | A rating |
| Kallidus Limited | Bristol | A rating |
| Kallik Ltd | Birmingham | A rating |
| Kallin Shellfish Ltd | Isle of North Uist | A rating |
| KALLU BROTHERS TRANSPORT LTD | West Midlands | A rating |
| Kallums Limited | London | A rating |
| Kalm Kitchen Ltd | London | A rating |
| Kalma Foods Limited T/A NISA | Coventry | A rating |
| Kalmar Limited | Bicton Heath | A rating |
| KalmTech Limited | Hayes | A rating |
| KALNAS GROUP LTD | Cwmbran | A rating |
| KALO LIMITED | Aylesford, | A rating |
| Kaloma Ventures Limited | London | A rating |
| KALON FINANCIAL LTD | WATFORD | A rating |
| KALOTY HAULAGE LTD | LEICESTER | A rating |
| Kalpadrum Limited | St Albans | A rating |
| Kalpah V IT Solutions Limited | Glasgow | A rating |
| Kalpana Enterprise Limited | Wembley | A rating |
| KALPNA HOTELS LIMITED | EDINBURGH | A rating |
| KALR GROUP LTD | Ilford | A rating |
| KALS N CREW BARBERS LIMITED | Maidenhead | A rating |
| Kalsec Europe Limited | Mildenhall | A rating |
| KALSI KITCHENS & BEDROOMS LTD | BIRMINGHAM | A rating |
| Kalsi Legal LTD | Leicester | A rating |
| Kalsi Plastics (UK) Limited | Birmingham | A rating |
| Kaltur Restaurant limited | Newcastle upon Tyne | A rating |
| Kaltura Europe Limited | London | A rating |
| Kalum Bodywork Limited | Hainult | A rating |
| Kaluza Ltd | London | A rating |
| KalVista Pharmaceuticals Limited | Salisbury | A rating |
| KALVOTECH LIMITED | Southsea | A rating |
| Kalyal Associates Ltd | London | A rating |
| Kalyan Gold and Diamond Jewellery Limited | Leicester | A rating |
| KALYMAT LIMITED | London | A rating |
| KAM COMPUTERS BARNET LTD | London | A rating |
| Kam Freight Services Limited | Hayes | A rating |
| KAM Retail Ltd T/A Spar Cambridge | Cambridge | A rating |
| KAM SKY LIMITED | Luton | A rating |
| KAMA PUB CO LTD T/A THE PATTENMAKERS ARMS | BELPER | A rating |
| KAMAAKSHI FOOD HUB LTD | Gravesend | A rating |
| KAMAKURA 2 SUSHI AND RAMEN LIMITED | CARRICKFERGUS | A rating |
| Kamakura Restaurant Carrick NI Ltd t/a Kamakura | Carrickfergus | A rating |
| Kamal & Sons UK LTD | Birmingham | A rating |
| KAMAL BROTHERS LIMITED | Slough | A rating |
| Kamal Contracts Ltd | Barking | A rating |
| Kamal Enterprises Ltd | Slough | A rating |
| KAMAL RESTAURANT LIMITED | NEWCASTLE | A rating |
| Kamal Services (UK) LTD | Kent | A rating |
| Kamal Subs Limited T/A Subway | Saffron Walden | A rating |
| KAMALA HAIR SALON LTD T/A NG HAIR & BEAUTY UNISEX SALON | Aldershot | A rating |
| KAMALAHARAN SIVAPURANATHAN T/A IDEN VILLAGE STORE POSTOFFICE | IDEN | A rating |
| KAMALAMUTHU ARULPRASANDH T/AS A K FOOD & WINE | CHESHIRE | A rating |
| Kamalarasani Loganathan T/A Dominion Road Convenience Store | Worthing | A rating |
| Kamalcoffee ltd/T a Muffin Break | Redditch | A rating |
| Kamaleswaryamma Karunanithy T/A Millview Store | WAKEFIELD | A rating |
| KAMALZAI BROTHERS LTD | Manchester | A rating |
| Kaman Professional Services Ltd | Hounslow | A rating |
| Kamba Coffee Ltd. | London | A rating |
| KAMBA SHOP | BARKING | A rating |
| Kambe Events Ltd | Bristol | A rating |
| Kambi Services Limited | London | A rating |
| Kambiz Limited T/A Babas Mezze | Bath | A rating |
| KAMBOJ ASSOCIATES LTD | HILLINGDON | A rating |
| Kamboj Construction Ltd | Essex | A rating |
| Kambojx Limited | Wolverhampton | A rating |
| Kambuja Ltd | Marple | A rating |
| Kames Fish Farming Limited | Oban | A rating |
| Kami Healthcare Limited T/A Oakwood Lane Pharmacy | Leeds | A rating |
| Kami London Limited | London | A rating |
| Kamil Catering Equipment Ltd. | London | A rating |
| Kamil Indian Kitchen T/A Zaks Indian Kitchen | Weston-Super-Mare | A rating |
| Kamilia Limited T/A Moza Restaurant | Newport Pagnell | A rating |
| KAMM TRADING LIMITED | Bury | A rating |
| Kammac Limited | Cheshire | A rating |
| Kammbronnfood Limted | Camborne | A rating |
| Kammoun Ltd | London | A rating |
| Kamolnagar Ltd | London | A rating |
| Kamp Accountants Limited | London | A rating |
| KAMPAG LIMITED | Canvey Island | A rating |
| Kampai Management Ltd | London | A rating |
| Kampmann UK Ltd | Shepperton | A rating |
| Kampus Group Ltd | London | A rating |
| KAMPYRO LTD | London | A rating |
| Kamrul Spice LTD | Topsham | A rating |
| Kams Kitchen Limited | London | A rating |
| KAMS LONDON LTD | Watford | A rating |
| Kamsana Rasarathinam T/A R&A LUCKY STORE PREMIER | SNODLAND | A rating |
| KAMSAVY PVT LTD | RAMSGATE | A rating |
| Kamshah Limited | Rainham, | A rating |
| Kamsika Trading Ltd T/A Premier | Narborough | A rating |
| Kamu Technologies Ltd | Birmingham | A rating |
| Kamyabi | Nottingham | A rating |
| KAMZIPOSHAAK LTD | Birmingham | A rating |
| KAN Engineering Ltd | Bedford | A rating |
| Kan Foods Limited | Luton | A rating |
| Kan's Kitchen Ltd | Banbury | A rating |
| Kana Nurseries Limited | London | A rating |
| Kanada Ya | London | A rating |
| Kanadevia Inova Capital Ltd | London | A rating |
| Kanadevia Inova UK Limited | Farnborough | A rating |
| KANAFEH HOUSE (T/A MEAT POINT) LTD | LONDON | A rating |
| Kanaga Services Ltd TA Dorset House Service Station | London | A rating |
| Kanagaratnam Suntharalingam T/A Morleys Fast Food | BECKENHAM | A rating |
| KANAGASABAI KUGARAJAH T/A KSG FAST FOOD | LONDON | A rating |
| Kanah Limited trading as Royal Docks Pharmacy | London | A rating |
| Kanai Care Ltd t/asThe Wingfield Arms | Shrewsbury | A rating |
| Kanaj Designs Ltd | Ilford | A rating |
| Kanan Security Ltd | Hampshire | A rating |
| Kanans Sweet House Ltd T/A Spice Garden Ltd | Borehamwood | A rating |
| Kanari Limited | London | A rating |
| KANARI VENTURES LIMITED T/A CLAN PHARMACY | LONDON | A rating |
| Kanavy's Limited | Redcar | A rating |
| KANBIR SOLUTIONS LTD | WATFORD | A rating |
| Kanda Consulting | London | A rating |
| Kanda Gold Limited | West Midlands | A rating |
| Kanda Products & Services Ltd | Henley-In-Arden | A rating |
| Kandeepan Veerasingam T/a Stars 'N' Jars | New Market | A rating |
| KANDHRO & SONS LTD/Fone Fitness | Dingwall | A rating |
| Kandiah Thayaparan | Chalgrove | A rating |
| KANDIANPRO LIMITED | Hounslow | A rating |
| KANDIES LTD | NORTHWOOD HILLS | A rating |
| KANDIES SWEETS LTD | CRAWLEY | A rating |
| Kandji UK Limited | London | A rating |
| Kandou Bus Limited | Northampton | A rating |
| KANDS DENTAL CERAMICS LABORATORY LIMITED | London | A rating |
| Kane Engineering Ltd | Newtownards | A rating |
| Kane Group | Banbridge | A rating |
| Kane's Construction ltd. | Dungannon | A rating |
| KaNect Limited | Whitstable | A rating |
| KANEDI ULTIMATE LIMITED | Leeds | A rating |
| Kaneera Express | Croydon | A rating |
| KANER INTERNATIONAL LIMITED | London | A rating |
| Kanes Foods Ltd | Evesham | A rating |
| Kanesbury Care Aranlaw House Limited | Bournemouth | A rating |
| Kanesbury Care Eagles Mount Limited | Dorset | A rating |
| Kanesbury Care Kingsman House Limited | Bournemouth | A rating |
| Kanesbury Care Regency Manor Limited | Bournemouth | A rating |
| Kang Hotel Services Ltd T/A The Oakwood Hotel | Gloucester | A rating |
| KANG MART LTD | Birmingham | A rating |
| Kang Transport (Leicester) Limited | Leicester | A rating |
| Kangaroo Kids Nursery Limited | Greenford | A rating |
| KANGAROO LOCAL UK LTD | Harwich | A rating |
| KANGNAMPOCHA LIMITED | London | A rating |
| KANGORE PVT LIMITED | Thornton Heath | A rating |
| KANHA CATERERS LTD T/A BOMBAI INDIAN STREET FOOD | Norwich, | A rating |
| Kanha Junu General Trading Ltd | London | A rating |
| Kanika International Limited T/As Delli Bites | Uxbridge | A rating |
| Kanishk Swarup T/A Compound Wealth Planning | London | A rating |
| Kanishka food & Wine Limited | Farnborough, | A rating |
| Kanjo Health Ltd | London | A rating |
| Kankesu Ranchith TA Telscombe Store | Dagenham | A rating |
| KANMALAITECH UK LIMITED | Liverpool | A rating |
| Kannan Velayutham & Chitra Sellappan c/o Best One Express | Bristol | A rating |
| Kannegiesser UK Limited | Banbury | A rating |
| KANNIKA & CO LIMITED | London | A rating |
| Kanon Associates Ltd | Ilford | A rating |
| Kanou Capital LLP | London | A rating |
| Kanpai (London) Food & Beverage Management Co., Ltd. | London | A rating |
| Kanpai Limited T/a: Kanpai Sushi | Edinburgh | A rating |
| KANPAI LONDON LTD. | London | A rating |
| KANSAI ELECTRIC POWER FTS PTE. LTD. (LONDON BRANCH) | London | A rating |
| KANSAL ASSOCIATES LIMITED | Warwick | A rating |
| Kanso Design Ltd | Saffron Walden | A rating |
| Kanso Marketing Limited | Swanley Village | A rating |
| KANSSAS HOMECARE | TOTTENHAM | A rating |
| Kanta Enterprises Limited | South Ruislip | A rating |
| Kanta Foods and Drinks Limited | Middlesex | A rating |
| KANTAR ADVISORY PARTNERS LTD | London | A rating |
| Kantar Media Audiences Limited | London | A rating |
| Kantar Public UK Limited | London | A rating |
| Kanthan Thevarajah T/A Quick Shop | Watford | A rating |
| KANTIPUR LTD | Glasgow | A rating |
| Kanto Systems Limited | London | A rating |
| Kantox LTD | London | A rating |
| Kanyuchi Limited TA Kanyuchi Healthcare | Fareham | A rating |
| Kanz ul Huda | Birmingham | A rating |
| Kao (UK) Limited | London | A rating |
| Kaorium Ltd | London | A rating |
| Kap Enterprise Ltd | London | A rating |
| Kap Hospitality Ltd | Dagenham | A rating |
| Kapasia Limited T/A Mint Leaf | Hitchin | A rating |
| Kape Konnection | London | A rating |
| Kapek Ltd | Northampton | A rating |