| MHHOME LTD | HUDERSFIELD | A rating |
| MHI Media LTD | Bristol | A rating |
| MHILD Care Limited | Greater London | A rating |
| MHill Ltd | London | A rating |
| MHK ACCOUNTANTS (BRADFORD) LIMITED | BRADFORD | A rating |
| MHKTRAD LTD | Coventry | A rating |
| MHL Holdco Limited | Colchester | A rating |
| MHM SERVICES (GB) LIMITED | Halifax | A rating |
| Mhouse Business solutions ltd | London | A rating |
| MHP Concept Kitchens LTD | Nottingham | A rating |
| MHP Consulting UK Limited | Reading | A rating |
| MHP Food UK Limited | Welwyn Garden City, | A rating |
| MHR International UK Limited | Northampton | A rating |
| MHRJ LIMITED | CARLISLE | A rating |
| MHS SERVICES LTD | BARKING | A rating |
| MHS TRANSPORTATION SERVICES LTD | Brentwood | A rating |
| MHT Corporate Limited | Salisbury | A rating |
| MHT Europe a trading division of The Marmon Group Limited | Wellingborough | A rating |
| MHT Forwarding | Abingdon | A rating |
| MHT Technology Limited | Richmond | A rating |
| MHTEK Limited | Amersham | A rating |
| MHWirth UK Limited | Aberdeen | A rating |
| MHZ TECHNOLOGIES LTD | Wilton, Salisbury | A rating |
| MI & SON TRADERS LTD | Hayes | A rating |
| MI 1 LTD | Lancashire | A rating |
| Mi Amor Walsall Ltd | Walsall | A rating |
| Mi Boon Thai Massage | Kents | A rating |
| MI CASA DEVELOPMENTS LTD | Oxfordshire | A rating |
| MI COMPUTSOLUTIONS INCORPORATED | London | A rating |
| MI DOUDOU LIMITED | London | A rating |
| MI ELECTRICAL & HEATING SERVICES LTD | Birmingham | A rating |
| Mi Flues Ltd | Blackpool | A rating |
| MI HEALTH LTD | London | A rating |
| MI JEWELLERS LTD | Birmingham | A rating |
| Mi Life Care Services Limited | Leicester | A rating |
| MI NEST LIMITED | London | A rating |
| Mi PA | Manchester | A rating |
| Mi-3 Limited | Blackburn | A rating |
| MI-TEC IT SOLUTIONS LTD | Bourne | A rating |
| MI:RNA LTD | Dundee | A rating |
| Mi:Skin Laser Clinic Limited | Aylesbury | A rating |
| MIA & CO (Scotland) Ltd | Stirling | A rating |
| Mia Care Services Ltd | London | A rating |
| MIA CATERING LTD | Lanark | A rating |
| MIA DESIGN LIMITED | RICHMOND | A rating |
| Mia Diamonds Limited | London | A rating |
| MIA Ecgoing Travel Limited | Reading | A rating |
| Mia Karlsson Interior Design Ltd | London | A rating |
| MIA SIGN LTD | London | A rating |
| Mia-Platform UK | London | A rating |
| MIAC Analytics Limited | London | A rating |
| Miah B Limited | Luton, | A rating |
| MIAH BUILD LTD T/A MK BUILDS | Oldham | A rating |
| MIAH CATERING LTD T/A TAJ MAHAL RESTAURANT | Chippenham | A rating |
| Miah R Ltd | Cardiff | A rating |
| MIAH TANDOORI LTD | SUNDERLAND | A rating |
| MIAH'S CUISINE LTD | Kent | A rating |
| Miah's Filipino Foods Ltd TA Miah's Oriental Foods | London | A rating |
| MIAH'S LIMITED | Reading | A rating |
| Miah's Mini Market Limited | Dukinfield | A rating |
| Miah's Philippine Food Ltd T/A Miah's Oriental Foods | London | A rating |
| Miah's Pinoy Foods Ltd TA Miah's Oriental Foods | London | A rating |
| Miah's Woodcock Ltd t/a Miah's castle | Castle Cary | A rating |
| Miahâ??s Fastfood Limited | Filey | A rating |
| MIAHBE LTD | CARDIFF | A rating |
| Miahs Oriental Food Ltd | London | A rating |
| MIALDN.COM LIMITED | London | A rating |
| MiAlgae Ltd | Edinburgh | A rating |
| Miall Smith Limited T/A Peartree Pharmacy | Welwyn Garden City | A rating |
| Miami International Limited | Birmingham | A rating |
| Mian Builders Limited | London | A rating |
| MIAN LONDON LTD | London | A rating |
| MIAN TRADING LTD | DUMBARTON | A rating |
| Miart Gallery London | London | A rating |
| MIASXTRA LTD | London | A rating |
| MIB Traders Ltd | Bolton | A rating |
| Miberry Ltd | Dundee | A rating |
| Mibo Global Ltd | Sutton | A rating |
| Mibsons (Accountants & Tax Consultants) | Birmingham | A rating |
| MIBSONS (WEST BROMWICH) LIMITED | West Bromwich | A rating |
| MIC CONNECT LTD | bRISTOL | A rating |
| MIC General Services UK limited | London | A rating |
| MIC HEALTHCARE SOLUTIONS LTD | Luton | A rating |
| MICA Architects Ltd | London | A rating |
| Micad Systems (U.K.) Limited | Altrincham | A rating |
| MICAEL LTD T/A Zorba the Greek Derby | Derby | A rating |
| Micasa Property Services Limited, T/A Micasa | Northwood | A rating |
| Michael A Fox Associates Ltd | Lutterworth | A rating |
| Michael Anastassiades Ltd. | London | A rating |
| MICHAEL ANTHONY PROJECT MANAGEMENT LIMITED | Northampton | A rating |
| Michael Bailey Associates UK Ltd | London | A rating |
| Michael Bailey Estate Agent | Preston | A rating |
| Michael Barclay Partnership LLP | London | A rating |
| Michael Bell Media | Belfast | A rating |
| Michael Bell Racing Limited | Newmarket | A rating |
| Michael Boles t/a Largs Chiropractic Clinic | Largs | A rating |
| Michael Bradbrook Consultants Ltd T/a Bradbrook Consulting | London | A rating |
| MICHAEL ELLIOTT LLP | London | A rating |
| Michael Evans & Associates Limited | Alfreton | A rating |
| Michael Fahami Ltd | 14 Lyon Road | A rating |
| Michael Franklin (Chemists) limited | Amersham | A rating |
| Michael Gallie & Partners Limited | London | A rating |
| Michael Goedhuis Limited T/A Michael Goedhuis | London | A rating |
| Michael Grandage Company Ltd | London | A rating |
| Michael Hall Waldorf School | Forest Row | A rating |
| Michael Harrison Entertainment | London | A rating |
| Michael Henry Transport Ltd | Oldbury | A rating |
| MICHAEL HERRINGTON RACING LTD | Gainsborough, | A rating |
| Michael Isaac Ltd | London | A rating |
| Michael J Lonsdale Ltd | London | A rating |
| Michael Jeha | London | A rating |
| Michael Kelly Dentistry Ltd | Glasgow | A rating |
| Michael Kors UK Limited | London | A rating |
| Michael Laird Architects Limited | Edinburgh | A rating |
| Michael Leong and Company | London | A rating |
| Michael Nugent (ES) Limited | Pomeroy | A rating |
| Michael Nugent IS Ltd | POMEROY | A rating |
| Michael Page International Recruitment Ltd | London | A rating |
| Michael Platt Limited | London | A rating |
| Michael Revels & Company | Galashiels | A rating |
| MICHAEL RGIS' CARE LTD | COLCHESTER | A rating |
| Michael Spiers (Jewellers) Limited | Plymouth | A rating |
| Michael Super Store Ltd T/A Michaels Superstore | Newcastle Upon Tyne | A rating |
| Michael Weinig (UK) Ltd | ABINGDON | A rating |
| Michael Wigham Racing Limited | Newmarket | A rating |
| Michael's News | Barnes | A rating |
| Michaela Community School | Wembley | A rating |
| Michaelis Boyd Associates Ltd | London | A rating |
| MICHAELS TRADING LIMITED | Kent, England, | A rating |
| MICHEAL FISH BAR LIMITED | Twickenham | A rating |
| Micheal Jennar TA Snappy snaps store 177 | Clapham Junction | A rating |
| Michel Del Carril trading as Petunia | Milland | A rating |
| Micheldever Group Limited | Winchester | A rating |
| Michelin Tyre plc | Stoke-on-Trent | A rating |
| MICHELL INSTRUMENTS LIMITED | ELY | A rating |
| MichelleBelle Limited | Grays | A rating |
| Michelmersh Brick UK Limited | Haywards Heath | A rating |
| Michelmores LLP | Exeter | A rating |
| Michels and Taylor (London) Limited | Elstree | A rating |
| Michuzi Ltd T/A Meera's Xpress | Northwood | A rating |
| Mici Brothers Limited | London | A rating |
| MiCiM Ltd | Reading | A rating |
| Mick Appleby Racing & Breeding Ltd | Oakham | A rating |
| Mick Perrin Worldwide Holdings Ltd | Brighton | A rating |
| MICKI'S NEWS | RAYNERSPARK | A rating |
| MICKS EEL SUPPLY LTD | London | A rating |
| Micon International Co Limited | Norwich | A rating |
| Micorport CRM UK Limited | Chester | A rating |
| MICRAH HEALTHCARE LTD | Hemel Hempstead | A rating |
| Micregen Ltd | Bolton | A rating |
| Micrel Medical Devices UK Ltd | Croydon, | A rating |
| Micrima Limited | Bristol | A rating |
| Micro AGI Limited | London | A rating |
| Micro Creations Ltd | Leicester | A rating |
| Micro Nav Limited | Bournemouth | A rating |
| Micro Nav Ltd | Bournemouth | A rating |
| Micro Precision Gear Technology Limited | Hemel Hempstead | A rating |
| Micro Precsision Ltd | Peasmarsh | A rating |
| Micro Spring & Presswork Company Limited | Redditch | A rating |
| Micro Systems (UK) Limited | Warrington | A rating |
| Micro Technology Services Ltd | Wigston | A rating |
| Micro Trends Limited | Nelson | A rating |
| Micro2 Ltd | Leeds | A rating |
| Micro365 Technologies Ltd | Manchester | A rating |
| MICROBIO LIMITED | London | A rating |
| Microbiological Solutions Limited | Bury | A rating |
| Microbiotica Limited | Little Chesterford | A rating |
| Microbuild Limited | Manchester | A rating |
| MICROCHIP LIMITED | Wokingham | A rating |
| MicroFast Technologies Limited | Harrow | A rating |
| Microferm Ltd | Malvern | A rating |
| MicrofluidX Ltd | Stevenage | A rating |
| MICROGRAPHIA BIO LIMITED | LONDON | A rating |
| Microland Limited | London | A rating |
| MicrolinkPC (UK) Ltd | Chandlers Ford | A rating |
| Microlise Limited | Nottingham | A rating |
| Micrologix Limited | Walsall | A rating |
| Micromass UK Limited | Wilmslow | A rating |
| Micron Europe Limited | Bracknell | A rating |
| MICRON RESEARCH LIMITED | ELY | A rating |
| Micron Semiconductor Ltd | LANCING | A rating |
| Micron Sprayers Limited | Bromyard | A rating |
| Micronclean Limited | Skegness | A rating |
| Microneedle Solutions Ltd | Leeds | A rating |
| Micronics Filtration Ltd | Stoke on Trent | A rating |
| Micropack (Engineering) Ltd | Aberdeen | A rating |
| Micropply Limited T/A GroundWOW | Stockport | A rating |
| Microquery Limited | Croydon | A rating |
| Microsan Consultancy Services Limited | Manchester | A rating |
| Microshare Europe Ltd | Maidenhead | A rating |
| Microsoft Limited | Reading | A rating |
| Microsoft Research Limited | Cambridge | A rating |
| Microsolv Systems Ltd | London | A rating |
| MicroStrategy Ltd | Chiswick | A rating |
| MICROSYS (UK) LTD | LONDON | A rating |
| MICROSYSTEMS INTERNATIONAL (UK) LTD | LONDON | A rating |
| Microteam Limited | Redditch | A rating |
| Microtech MCR Limited | Manchester | A rating |
| Microtech Support Limited | Kilmarnock | A rating |
| Microtill Limited | Chelmsford | A rating |