| Lumsden Design Ltd | London | A rating |
| LUMYA LIVING UK LIMITED | London | A rating |
| Lumyna Investments Limited | London | A rating |
| Luna Care Services Ltd. | Potters Bar | A rating |
| Luna Cleaning Solutions Limited | Grays | A rating |
| Luna De Pak 2017 Ltd | Dewsbury | A rating |
| Luna Group Holdings Ltd | London | A rating |
| Luna Jack Ltd | Harrow | A rating |
| LUNA PHARMA CONSULTING LTD | London | A rating |
| LUNA RESTAURANT LTD | London | A rating |
| Luna's vegan Corner Ltd T/A Luna's Vegan Corner | Cardiff | A rating |
| LunaJets UK Limited | London | A rating |
| Lunalogic UK Limited | London | A rating |
| Lunar Animation Ltd | Sheffield | A rating |
| Lunar Bifold Doors Ltd. | Ilford, | A rating |
| Lunar Energy Limited | London | A rating |
| LUNAR LABS LIMITED | London | A rating |
| LUNARCITE LIMITED | London | A rating |
| Lunasa Ltd. | London | A rating |
| Lunaz Ltd T/A Lunaz Design | Silverstone | A rating |
| LUNCH BOX CHESSINGTON LTD, T/A LUNCH BOX | SURREY | A rating |
| Lundbeck Ltd | Watford | A rating |
| Lundi Education and Care Services | Burton-on-Trent | A rating |
| Lundie Farming Limited | Dumfries | A rating |
| Lune Inc Ltd T/A Monday Muse | Canvey Island | A rating |
| Luneia | EAST MOLESEY | A rating |
| LUNEXA SOLUTIONS LTD | CAMBRIDGE | A rating |
| Lunfardo Ltd | London | A rating |
| Lunit UK Limited | Stockport | A rating |
| LUNO FASHION LIMITED | Sully | A rating |
| Luno Money Limited | London | A rating |
| Lupa Pets LTD | London | A rating |
| LUPIN HEALTHCARE (UK) LIMITED | SLOUGH | A rating |
| Lupine Canine Limited | Horsforth | A rating |
| Lupset Health Centre | Wakefield | A rating |
| Lupset Store Limited | Lupset | A rating |
| LUPUS 82 LTD | London | A rating |
| Lupus Films | London | A rating |
| LUQS LTD | Ipswich | A rating |
| LuraCare Ltd | London | A rating |
| Lurot Brand Ltd | London | A rating |
| Lurtis Limited | Oxford | A rating |
| LUS PRODUCTION LTD | London | A rating |
| Luscid Limited | London | A rating |
| Luscious Edinburgh Ltd | Edinburgh | A rating |
| LUSH BIRD LTD | Grays | A rating |
| LUSH CONVENIENCE STORES LIMITED | Stoke-On-Trent | A rating |
| LUSH EMPIRES LTD | Farnborough, England | A rating |
| Lush Ltd | Poole | A rating |
| Lush Salon Supplies Telford Ltd | Telford | A rating |
| Lush Tattoo Club Ltd | Leicester | A rating |
| LUSHI CONSTRUCTION LTD | London | A rating |
| LUSHLA SUPERMARKETS LTD T/A Dixons Newsagents | Ilford | A rating |
| Lusion Ltd | Bristol | A rating |
| Luson Surgery | Wellington | A rating |
| LUSOPHONIA LIMITED | London | A rating |
| Lustro Ltd | Leicester | A rating |
| Lutchmy Care Services Limited | Southsea | A rating |
| Luther College Study Centre | Nottingham | A rating |
| Luther Systems Limited | London | A rating |
| Lutheran Church in Great Britain Limited | London | A rating |
| Lutheran Council of Great Britain | London | A rating |
| Luthmore Ltd | Chippenham | A rating |
| Luths Services Ltd | GLASGOW | A rating |
| Lutine Bell Ltd | Haywards Heath | A rating |
| Luton Borough Council | Luton | A rating |
| Luton Business Hub Limited | High Wycombe | A rating |
| Luton Chai Ltd | Ashford | A rating |
| LUTON ENGINEERING SERVICES (SOUTHWEST) LTD | Manchester | A rating |
| Luton Food & Wine | South Luton | A rating |
| Luton Friendship Homecarers | Luton | A rating |
| luton islamic centre | luton | A rating |
| LUTON MART LIMITED | Hertfordshire | A rating |
| LUTON MART PRIVATE LTD | Luton | A rating |
| Luton Plumbing Centre Limited | Luton | A rating |
| LUTON SAFE DEPOSIT CENTRE LIMITED | Luton | A rating |
| Luton Sixth Form College | Luton | A rating |
| Luton Town And Indians Cricket Club | Luton | A rating |
| LUTON TOWN CHAI LTD | ASHFORD | A rating |
| LUTON TOWN FISH & CHIPS LTD | Luton | A rating |
| Luton Town Football Club 2020 Ltd | Luton | A rating |
| LUTON ULTRASOUND LIMITED T/A HEY BABY 4D LUTON | LUTON | A rating |
| LUTON VISIONPLUS LIMITED T/A SPECSAVERS LUTON | Whitely | A rating |
| Lutong Pinoy Limited | London | A rating |
| Lutonstar Supermarket Ltd | Luton | A rating |
| Lutron EA Limited | London | A rating |
| LUTTERWORTH CENTRAL STORES LTD | LUTHERWORTH | A rating |
| Lutterworth College | Lutterworth | A rating |
| Lutterworth Cricket Club | Lutterworth | A rating |
| LUU-BRIDGETS HEALTHCARE LIMITED | London | A rating |
| LUUX Digital Media Limited | London | A rating |
| LUV Financial Solutions LTD | Warrington | A rating |
| LUV TO CARE HOME CARE LTD | Southampton | A rating |
| Luv To Care Ltd | Guildford | A rating |
| LUV2SLEEP LIMITED | Manchester | A rating |
| Luvata Welwyn Garden Limited | Hertfordshire | A rating |
| Luve Coffee Company Ltd | Wimborne | A rating |
| Luvia Digital Ltd | Milton Keynes | A rating |
| LUX | London | A rating |
| Lux & Veritas International Holding Ltd | London | A rating |
| LUX APARTMENTS | BURTON ON TRENT | A rating |
| Lux Artists Limited | London | A rating |
| Lux Barbershop Limited | Biggleswade | A rating |
| LUX BOUTIQUE COLLECTION LTD | LONDON | A rating |
| LUX BUILD LONDON LIMITED | COULSDON | A rating |
| Lux consulting Ltd | Shrewsbury | A rating |
| Lux Dent Agency Limited | Wimbledon | A rating |
| LUX INN LIMITED | Manchester | A rating |
| Lux Living Limited | London | A rating |
| LUX MUNDI CATHOLIC ACADEMY TRUST | London | A rating |
| Lux Populi UK Ltd. | Oxford | A rating |
| Lux Property Services Limited | Hoddesdon | A rating |
| LUX RHAAN LIMITED | York | A rating |
| LUXCARS LONDON LTD | Buckingham | A rating |
| LUXCESSITY LTD | WOKING | A rating |
| Luxds Consultancy Ltd | London | A rating |
| LUXE 88 LIMITED | Newbury | A rating |
| LUXE CANAPES LIMITED | MANCHESTER | A rating |
| LUXE DIAMOND HAVEN LTD | London | A rating |
| Luxe Foods and Hospitality Limited T/A Delhi House Cafe | Manchester | A rating |
| Luxe Foods and Hospitality Ltd T/A Delhi House Cafe | Manchester | A rating |
| Luxe Hairdressers Ltd | Kent | A rating |
| Luxe Lawns Limited t/a Greenthumb | Woodford | A rating |
| LUXE LIVING YORKSHIRE LTD | Staincliffe | A rating |
| Luxe Travel & Lifestyle Management Ltd | Birmingham | A rating |
| LUXELLO HOSPITALITY LTD | Nottingham | A rating |
| LUXERIDES (LONDON) LIMITED T/A LUXERIDES | London | A rating |
| Luxfer Gas Cylinders Limited | Nottingham | A rating |
| Luxi Food and Wine Limited | London | A rating |
| Luxinar Ltd | Hessle | A rating |
| LUXINUK LIMITED | Slough | A rating |
| Luxion Group Limited | Eastleigh | A rating |
| Luxle Lighting Supplies Limited | Preston | A rating |
| LuxLondon.Shop Ltd | Sheffield | A rating |
| Luxmy Enterprises | Chippenham | A rating |
| LUXMY SERVICE STATION LTD t/a GULF | MARCH | A rating |
| LUXOFT FINANCIAL SERVICES UK LIMITED | London | A rating |
| LUXOR HOME FURNITURE LTD | LONDON | A rating |
| Luxottica North Europe Limited | London | A rating |
| Luxottica Retail (UK) Ltd | London | A rating |
| Luxpak Limited | Peterborough | A rating |
| LUXPOOL LTD | Solihull | A rating |
| LUXSCENTS UK LTD | Coventry | A rating |
| Luxshan Import Ltd | Southall | A rating |
| Luxsmi Ltd | Tadworth | A rating |
| Luxuria Auto UK Limited | Lancaster | A rating |
| Luxurious Personal Care LTD | Ware | A rating |
| LUXURY AFFORDABLE FURNITURE LTD | London | A rating |
| Luxury Apartments Manchester Limited | Belfast | A rating |
| LUXURY CARPETS & FURNITURE LTD | Watford | A rating |
| LUXURY DECORATORS LTD | London | A rating |
| LUXURY DESIGN SOLUTIONS LTD | Romford | A rating |
| LUXURY FLOORS LIMITED | Hayes | A rating |
| luxury garments ltd | Belfast | A rating |
| Luxury Global Bakery Ltd | Coventry | A rating |
| LUXURY HAIR & BEAUTY LTD | Stoke On Trent | A rating |
| Luxury Knightsbridge Limited | London | A rating |
| LUXURY LIVING RETAIL LTD | Slough | A rating |
| LUXURY NAILS CT LTD trading as Luxury Nails | Reading | A rating |
| Luxury Promise Limited | London | A rating |
| Luxury Retail Partners Ltd | London | A rating |
| LUXURY SENT LTD T/A LUXURY SCENT | NEWCASTLE UPON TYNE | A rating |
| LUXURY SOUTHBANK PROPERTIES LIMITED | London | A rating |
| Luxury Style Hairdresser LTD | london | A rating |
| Luxury Tours (I&S) Limited | Belfast | A rating |
| Luxury Vault Limited | London | A rating |
| Luxury Wedding Accessories Ltd | London | A rating |
| Luxury Wedding Photography | Nottingham | A rating |
| Luxurycare Aranlaw House Limited | Bournemouth | A rating |
| Luxurycare Eagles Mount Ltd | Bournemouth | B rating |
| Luxurycare Kingsman House Limited | Bournemouth | A rating |
| Luxurycare Regency Manor Care Limited | Bournemouth | A rating |
| Luxurycare Seabourne House Limited | Bournemouth | A rating |
| Luxus London Ltd | London | A rating |
| Luxxnailsbar Ltd | Wakefield | A rating |
| LUXYLUXY LTD | London | A rating |
| LUZARDI UK LIMITED | Bradford | A rating |
| LV & JL t/a Broadoak Manor Nursing Home | Hertford | A rating |
| LV Care Ltd | Bournemouth | A rating |
| LV GLOBAL LIMITED | Greenford | A rating |
| LV Shipping Ltd | Middlesbrough | A rating |
| LV STORE LTD | Port Talbot | A rating |
| LV SUPERMARKET LTD | London | A rating |
| LVE Exclusive Wheels Ltd | Nazeing | A rating |
| LVH Contracting Limited | Haverhill | A rating |
| LVMH FG Services UK Ltd | London | A rating |
| LVMH Services Limited | London | A rating |
| LVMH Watch & Jewellery (UK) Limited | Manchester | A rating |
| LVNH Limited | southport | A rating |
| LVNT LTD | London | A rating |
| LVS Coachworks Limited | London | A rating |
| LVSSA SOLUTIONS LTD | Solihull | A rating |
| LW Polo LLP | Sherston | A rating |
| LW Team Limited | Manchester | A rating |
| LW Theatres Group Limited | London | A rating |
| LWB Sports Limited | Sheffield | A rating |
| LWF UK Limited | Cheshire | A rating |
| LWG Consulting UK Limited | London | A rating |
| LWJ ESTATES LIMITED | Birmingham | A rating |
| LWPO LIMITED | London | A rating |