| Leojet Group Ltd | London | A rating |
| LEOMIND LABS LTD | London | A rating |
| Leominster Osteopaths Ltd | Leominster | A rating |
| LEOMINSTER SPICE LIMITED, T/A TASTE OF INDIA | Herefordshire | A rating |
| Leon Bara Ltd | London | A rating |
| Leon Capital LLP | London | A rating |
| LEON GUARDING & FM LIMITED | LONDON | A rating |
| Leon Kennedy Ltd | Edgware | A rating |
| LEON LU & CO. LTD | BELFAST | A rating |
| Leon Paul Equipment Company Limited | London | A rating |
| Leonard Brinton Interiors Limited | Witham | A rating |
| Leonard Cheshire Disability | London | A rating |
| Leonard Design Group Ltd | Nottingham | A rating |
| Leonard Engineering Design Associates Limited | Woking | A rating |
| Leonard Gray LLP | Chelmsford | A rating |
| Leonard Jay One Ltd | London | A rating |
| LEONARDO BELGIUM SA | Elstree | A rating |
| Leonardo Hotel Management (UK) Limited | London | A rating |
| Leonardo UK Ltd | Basildon | A rating |
| LEONARDOS WEST LIMITED | Glasgow | A rating |
| LEONI Wiring Systems UK Limited | Newcastle | A rating |
| Leonid Group Ltd | Bishop's Stortford | A rating |
| LEONIDE INTERIORS LTD | Wingerworth | A rating |
| Leonids Education Group Ltd | HARROW | A rating |
| Leonis Principal Ltd | Mayfair | A rating |
| Leonteq Securities (Europe) GmbH | London | A rating |
| Leopard Business Solutions LTD | Abingdon | A rating |
| Leopard Hotel 15 Limited | Barking | A rating |
| Leopard Hotel 2 Ltd | London | A rating |
| LEOPARD SECURE SERVICES LTD | Birmingham | A rating |
| LEOPARD TECHNOLOGY LTD | Redhill | A rating |
| Leoprim Limited T/A Leoprim Pharmacy | London | A rating |
| Leorin Limited | Isle of Islay | A rating |
| Leos AL Ltd T/A Leo's Italian Restaurant | Bolton | A rating |
| LEOS MANAGEMENT SERVICES LTD | Weybridge | A rating |
| Leotry Ltd | Newcastle upon Tyne | A rating |
| LeoVegas UK Limited | Newcastle upon Tyne | A rating |
| Lepaula Ltd | London | A rating |
| Lepercq UK Limited | London | A rating |
| LEPORIS TRADING LTD | Rochdale | A rating |
| Leprino Foods Limited | Cheshire | A rating |
| Leptis Ltd | Manchester | A rating |
| Lepton Highlanders Cricket Club | Huddersfield | A rating |
| LER Group Ltd | Hemel Hempstead | A rating |
| Leran Ltd | London | A rating |
| Lereka Services Ltd | Sutton | A rating |
| Lerue Healthcare Ltd | Glasgow | A rating |
| Lerwick Engineering and Fabrication | Lerwick | A rating |
| Lerwick Engineering and Fabrication LTD | Lerwick | A rating |
| Lerwick Specsavers Limited | Lerwick | A rating |
| Les Ambassadeurs Club Limited | London | A rating |
| Les Lions Farm Ltd | Maidenhead | A rating |
| Les Mills UK Fitness Limited | London | A rating |
| LES PERLES LIMITED | London | A rating |
| Les Petites Etoiles Limited | London | A rating |
| Les Petits Rois Nurseries Ltd | London | A rating |
| LESAFFRE UK AND IRELAND LIMITED | SUTTON | A rating |
| Leslie Jones Architects Limited | London | A rating |
| LESMAHAGOW MINI MARKET LTD t/a Spar | Lesmahagow | A rating |
| Lesotho High Commission | London | A rating |
| LESS COMMON METALS LTD | Ellesmere Port | A rating |
| LESSEL LIMITED | London | A rating |
| LESTARI LDN LTD | LONDON | A rating |
| Lester and Hamilton trading as Pandora | London | A rating |
| Lester Cladding North West Ltd | Appley Bridge | A rating |
| Lester Control Systems Limited | Croydon | A rating |
| Lester Dominic Solicitors | London | A rating |
| Lester Hall Apartments Limited T/A Lester Hall Apartments | Leicester | A rating |
| Lester Oncology Limited | Abergavenny | A rating |
| Lestone Veterinary Centre t/a The Vet Clinic | Leighton Buzzard | A rating |
| LET EAT BE GROUP LTD | LONDON | A rating |
| LET IT GO TECH LTD | COVENTRY | A rating |
| Let Sell Property Ltd | London | A rating |
| Let us share the care ltd | Romford | A rating |
| LET-HD LIMITED | MANOR PARK | A rating |
| let's circus | Newcastle upon tyne | A rating |
| LET'S EDUCATE THEM | PRESTON | A rating |
| LET'S GO FOOD AND WINE LTD | London | A rating |
| Letchworth Eyecare Limited | Letchworth Garden City | A rating |
| Letchworth Pharmacy | Letchworth | A rating |
| LETCHWORTH REHABILITATION & PHYSIOTHERAPY CENTRE LTD | STEVENAGE | A rating |
| Letchworth Vision Plus Ltd t/a Specsavers | Letchworth Garden City | A rating |
| LETCHWORTH WINES LTD | Letchworth Garden City | A rating |
| LeTech International Ltd | Northampton | A rating |
| LETHAL AUTO DESIGN LTD | Worthing | A rating |
| LETHAM SHOP LTD t/a Shop Local | Perth | A rating |
| Letly Group (UK) Ltd | London | A rating |
| Leto Plus Limited | London | A rating |
| Letranger Limited | London | A rating |
| Lets B Wise (Glasgow) Ltd | Glasgow | A rating |
| LETS CARE ALL LTD. | London | A rating |
| LETS DEEL (1) LTD | London | A rating |
| LETS DEEL LTD | London | A rating |
| LETS FRY LIMITED | Birmingham | A rating |
| LETS FURNISH LONDON LIMITED | Hounslow | A rating |
| LETS GO BACK LTD | Glasgow | A rating |
| LETS IGNITE LIMITED | Birmingham | A rating |
| LETS MOVE PROPERTIES LTD | LONDON | A rating |
| Lets Move Together Limited | Thornton Heath | A rating |
| Lets Recycle It Limited | Newry | A rating |
| Lets Sushi Ltd | Sheffield | A rating |
| LETSLOCALISE LIMITED | Wokingham | A rating |
| LETSLOCATE ESTATES LTD | London | A rating |
| Lette Ltd | London | A rating |
| LetterOne Technology (UK) LLP | London | A rating |
| LETTERONE TREASURY LLP | London | A rating |
| LETTING INTERNATIONAL LIMITED | Ilford | A rating |
| LETTINGS 24/7 LIMITED | Birmingham | A rating |
| LETTUS GROW | Bristol | A rating |
| Letty Investments Limited | London | A rating |
| Leucid Bio Limited | London | A rating |
| Leumi UK Group Limited | London | A rating |
| LEUVA PATIDAR SAMAJ (9SNB) OF YORKSHIRE | Bradford | A rating |
| Lev Properties Investments Ltd. | Liverpool | A rating |
| Levan Restaurant Limited | LONDON | A rating |
| LEVANT CREATIONS LTD | London | A rating |
| LEVANT U.P.S. LIMITED | Leighton Buzzard | A rating |
| Levantine (UK) Limited | Hayes | A rating |
| Levantine Concepts Ltd. | London | A rating |
| Levantine Express Limited | London | A rating |
| LEVANTINE N LTD T/A EAT ACTIV | LONDON | A rating |
| Levari Business Services Ltd | London | A rating |
| Levco Productions | London | A rating |
| Level 1 Construct Ltd | London | A rating |
| Level 40 Ltd | Edinburgh | A rating |
| Level Civils Limited | Stoke on Trent | A rating |
| Level Developments Ltd | Croydon | A rating |
| Level E Research Limited | Edinburgh | A rating |
| Level Financial Technology Limited | Ashford | A rating |
| Level Health (UK) Ltd | Woodford Green | A rating |
| LEVEL THREE TECHNOLOGY SOLUTIONS LTD | Birmingham | A rating |
| LEVEL WEB LIMITED | Barking | A rating |
| Level Zero Health | London | A rating |
| Levels Technologies Ltd | London | A rating |
| LevelUP Talent Solutions Ltd | Reading | A rating |
| Leven Laboratories Limited | London | A rating |
| Leven Vale DP Ltd | Yarm | A rating |
| LEVENE CONSULTING LTD | London | A rating |
| Levens Heritage | KENDAL | A rating |
| LEVENSHULME JOINERY LTD | Manchester | A rating |
| LeVeon Accounting Solution Limited | London | A rating |
| Lever Agriculture Trading UK Ltd | London | A rating |
| Lever Payroll Limited | Isleworth | A rating |
| Leverage Enterprises Ltd | Hounslow | A rating |
| LeverBrands Ltd | London | A rating |
| Levern Medical Group | Glasgow | A rating |
| Leversys Ltd | London | A rating |
| LevertonHELM Limited | Basingstoke | A rating |
| Levetron Limited | Preston | A rating |
| Leviat Ltd | Sheffield | A rating |
| LEVIDIAN NANOSYSTEMS LIMITED | CAMBRIDGE | A rating |
| LEVIN DESIGN LIMITED | Ashford | A rating |
| Levin Sources | Duxford | A rating |
| Levis Strauss (U.K.) Limited | Northampton | A rating |
| Levistor Ltd | Raynes Park | A rating |
| Leviton Manufacturing UK Ltd | Glenrothes | A rating |
| Levitt Bernstein | London | A rating |
| Levmet (UK) Limited | London | A rating |
| LEVRA Limited | London | A rating |
| LEVSON GTECH UK LIMITED | Abingdon | A rating |
| LEVY + PARTNERS LIMITED | London | A rating |
| Levy Associates Limited | London | A rating |
| Levy Gorvy Dayan (London) Limited | London | A rating |
| Lewden Ltd | Braintree | A rating |
| Lewes 2000 FC Limited | Lewes | A rating |
| Lewes Old Grammar School | Lewes | A rating |
| LEWINSDALE LODGE | WESTON SUPER MARE | A rating |
| Lewis & Hickey Ltd | Guildford | A rating |
| LEWIS COFFEE SHOP LTD | London | A rating |
| Lewis Communications Limited | London | A rating |
| Lewis Hamilton Ventures Limited | London | A rating |
| Lewis Kingsnorth Limited | Eastbourne | A rating |
| Lewis Mathys Emmerson LLP | London | A rating |
| Lewis Moberly Ltd | London | A rating |
| LEWIS PROPERTY NW LTD TA LEWIS PROPERTY | Manchester | A rating |
| Lewis Silkin LLP | London | A rating |
| Lewis Trust Group Ltd | London | A rating |
| Lewisham & Greenwich NHS Trust | London | A rating |
| Lewisham Bed Centre ltd | Lewisham | A rating |
| Lewisham Butchers & Grocers Ltd | Barking | A rating |
| LEWISHAM CAKE BOX LIMITED | London | A rating |
| LEWISHAM COSMETICS LTD | London | A rating |
| Lewisham Food Market (Meat) | London | A rating |
| Lewisham Park Care Home | London | A rating |
| Lewisham Visionplus Ltd TA Lewisham Specsavers Ltd | London | A rating |
| Lewmar Ltd | Havant | A rating |
| Lex Children Clothing Ltd | Rochdale | A rating |
| Lex Dinamica Ltd. | London | A rating |
| Lex Home Ltd | London | A rating |
| LEX HOUSE LIMITED | CAERDYDD | A rating |
| LEX LEGAL (UK) LTD | Bolton | A rating |
| Lex Motor Ltd | Rochdale | A rating |
| Lex Records Limited | London | A rating |
| Lexay Business Solutions Limited | London | A rating |
| Lexcor Ltd | Blackpool | A rating |
| LEXDEN CONVENIENCE STORE | COLCHESTER | A rating |
| Lexden Lodge Kindergarten | Colchester | A rating |
| Lexden Marine Ltd | London | A rating |
| LEXeFISCAL LLP | London | A rating |
| Lexham Insurance Consultants Ltd | Diss | A rating |