| Muhammad Sajjad Naseem t/a Best One | Dundee | A rating |
| Muhammad Tahir Khokhar Trading as Polegate Dental Practice | Polegate | A rating |
| Muhammad Tayyab | Huddersfield | A rating |
| Muhammad Usman T/A Sapna Collection | Birmingham | A rating |
| Muhammad Yasir Aziz t/a Big Man's Food | Oldbury | A rating |
| Muhammad Zahid t/a Fresh Fadez Barber | Dundee | A rating |
| Muhammad Zubair Trading As Deals on Wheels | MILTON KEYNES | A rating |
| Muhammadi Masjid | Bradford | A rating |
| MUHAMMADI TRUST OF GREAT BRITAIN AND NORTHERN IRELAND | LONDON | A rating |
| Muhammadia Saifia Education Trust | Oldham | A rating |
| MUHAMMED JALAL T/A OLD & NEW FURNITURE | LONDON | A rating |
| Muhdin Enterprise Ltd | Glasgow | A rating |
| Muir Gifts | Kirriemuir | A rating |
| MUIRDEN ENERGY LLP | Turriff | A rating |
| MUIRHEAD AUTO PARTS LTD | GLASGOW | A rating |
| MUIRKIRK STORES LIMITED | Cumnock | A rating |
| MUIRKIRK SUPERSTORE LTD | Cumnock | A rating |
| Mujahid & Co Accountants Ltd | Manchester | A rating |
| MUJI Europe Limited | London | A rating |
| Mujibur Rahman | LYME REGIS | A rating |
| MUJTABA & SALMAN LTD | OXFORD | A rating |
| MUK Global Trading (UK) Limited | Guildford | A rating |
| Mukesh Dave | Cogenhoe | A rating |
| MUKESH KUMAR LTD | Manchester | A rating |
| Mukesh Patel and Bhavna Patel T/A Eaton Lodge Nursing Home | Westgate - on - Sea | A rating |
| MUKT MUNI LIMITED | PINNER | A rating |
| Muktar Limited (Trading as Zeera) | Stowemarket | A rating |
| Mukthasolutions Limited | Peterborough | A rating |
| Mukti Properties SPV Ltd | Harrow | A rating |
| Muku Limited t/a Muku Hair Salon | London | A rating |
| MUKUNDI LIMITED | Warrington | A rating |
| Mulato 8 Limited | London | A rating |
| Mulaverse Ltd | Essex | A rating |
| Mulberries And Willows Nursery and Preschool Ltd | CROYDON | A rating |
| Mulberry Assets Limited | Preston | A rating |
| Mulberry Bush Montessori Limited | Glasgow | A rating |
| Mulberry Care Homes Ltd | Huddersfield | A rating |
| Mulberry Care Limited | Reading | A rating |
| MULBERRY CO (DESIGN) LTD | CHILCOMPTON | A rating |
| Mulberry Court Supported Living Limited | Derby | A rating |
| Mulberry Dental Practice | Penrith | A rating |
| Mulberry GBC | Gravesend | A rating |
| Mulberry Home Care Services Ltd | Weybridge | A rating |
| Mulberry Risk Ltd | London | A rating |
| Mulberry Schools Trust | London | A rating |
| Mulberry West Ltd | MANCHESTER | A rating |
| Mulchand (UK) Limited | 8-9 Ivor Place, London, Greater Lon | A rating |
| Mulder Tech | London | A rating |
| Muldoon & Co Ltd | Belfast | A rating |
| Muldoon Transport Systems Limited | Dungannon | A rating |
| Mule App Ltd T/A Protect My Order | London | A rating |
| MULE STUDIO LTD | London | A rating |
| Mulgrew Haulage Limited | Dromore | A rating |
| Mulholland Plant Services Limited | West Calder | A rating |
| Mulholland Scrap Metals Limited | Ballymena | A rating |
| Mulholland Ventures (Drinks) Limited | London | A rating |
| Mullaco (Dewsbury) Ltd | Dewsbury | A rating |
| Mullaghboy Limited T/A Mullaghboy Nursing Home | Donaghadee | A rating |
| Mullaghmore Bakery Ltd | Omagh | A rating |
| Mullai Group Ltd | Port Talbot | A rating |
| Mullally Dental Practice Limited | London | A rating |
| MULLAN ENGINEERING WORKS LTD | Omagh | A rating |
| Mullen Coughlin UK, Limited | London | A rating |
| MullenLowe Group Limited | London | A rating |
| Muller Martini Limited | Langley | A rating |
| Muller UK & Ireland Group LLP T/A Muller Milk & Ingredients | Market Drayton | A rating |
| Mullinsallagh Ltd | Knockloughrim | A rating |
| Mulmar Foodservices Solutions | Hatfield | A rating |
| Mulroy Architects Ltd | Guildford | A rating |
| MULTAN BUSINESS LTD | Paisley | A rating |
| MULTANI BUILDERS LTD | MANCHESTER | A rating |
| Multani Limited | Manchester | A rating |
| MULTEA HQ LTD | Surbiton | A rating |
| Multex Chemicals Ltd | HULL | A rating |
| Multi - Tech Integrated Solutions UK Limited | Peterborough | A rating |
| Multi Asset Solutions Limited | London | A rating |
| MULTI COOL REFRIGERATION COMPANY LTD | Greenford | A rating |
| Multi Home Improvement Limited | Uxbridge | A rating |
| Multi Installations Limited | Burgess Hill | A rating |
| Multi Logistic Solutions UK Limited | London | A rating |
| Multi Logistics Limited | London | A rating |
| Multi Packaging Solutions UK Limited | Nottingham | A rating |
| Multi Technologies Limited | Manchester | A rating |
| Multi Trade links UK ltd | harrow | A rating |
| Multi Trades Recruitment Ltd | Bolton | A rating |
| Multi-Care Community Services Burton On Trent Ltd | Burton-On-Trent | A rating |
| Multi-Care Community Services Ltd | Huntingdon | A rating |
| Multi-Care Community Services Ltd | Cambridgeshire | A rating |
| MULTI-CARE COMMUNITY SERVICES SUFFOLK LTD | Bury St Edmunds | A rating |
| Multi-Color Clydebank Scotland Limited | Glasgow | A rating |
| Multi-Color Cwmbran UK Limited | Cwmbran | A rating |
| Multi-FIx Construction Limited | Liverpool | A rating |
| Multi-Health Systems UK Ltd | Belfast | A rating |
| MULTI-PLY COMPONENTS LIMITED | Blackpool | A rating |
| MULTI-TURN LIMITED | Winchester | A rating |
| MultiAdaptor Limited | London | A rating |
| MultiCare Services (UK) Limited | Hemel Hempstead | A rating |
| Multichoice Global UK Ltd | Reading | A rating |
| Multiconsult UK Ltd | Ashford | A rating |
| Multicultural Marketing Consultancy Limited | London | A rating |
| Multicultural Resource Centre | Rochdale | A rating |
| Multicultural Richmond | Whitton Twickenham | A rating |
| Multidot Limited | Manchester | A rating |
| MULTILINES INTERIORS LTD | Wembley | A rating |
| Multilink Management Care Ltd | Gloucester | A rating |
| Multilocal Media Ltd | London | A rating |
| Multimart Limited | Southall | A rating |
| Multimed Ltd | Oldham | A rating |
| MULTIMESH (UK) LTD | Haydock | A rating |
| Multimodal Logistics Ltd | Felixstowe | A rating |
| Multiomic Health Limited | London | A rating |
| MultiOptics Limited | Norwich | A rating |
| Multipanel UK Limited | London | A rating |
| Multipass Platforms Limited | London | A rating |
| MULTIPLAI HEALTH LTD | Cambridge | A rating |
| Multiplai Limited | Cramlington | A rating |
| Multiple Care Solutions Ltd | Dagenham | A rating |
| Multiple Sclerosis International Federation | London | A rating |
| Multiple Sourcing UK Ltd | London | A rating |
| MULTIPLEINNOVATIONS LIMITED | Manchester | A rating |
| Multiplex Construction Europe Limited | London | A rating |
| Multiplex Engineering Limited | Chesterfield | A rating |
| MULTIPLIER TECHNOLOGIES UK LTD | London | A rating |
| Multiply London Limited | London | A rating |
| MULTIQO SOLUTION LTD | London | A rating |
| MultiRoofing Systems Uk Ltd | London | A rating |
| Multistori Limited | London, London | A rating |
| Multitone | Basingstoke | A rating |
| Multitop Accountants Ltd | Welling | A rating |
| MULTITRENDS LIMITED | Manchester | A rating |
| Multiverse Group Limited | London | A rating |
| Multivision constructions Ltd | Grangemouth | A rating |
| Multrees Consulting Limited | London | A rating |
| Multrees Investor Services Limited | Edinburgh | A rating |
| MULTUS Biotechnology Limited | London | A rating |
| MUM & DAD'S SUPERMARKET | Coventry | A rating |
| Mumbai 27 Ltd | Belfast | A rating |
| MUMBAI ASHBROOKE LTD t/a Mumbai Silk | Tyne & Wear | A rating |
| Mumbai Bites | Bradford | A rating |
| MUMBAI CUISINES LIMITED T/a Mumbai | Kendal | A rating |
| Mumbai Delight Limited T/A Mumbai Delight | London | A rating |
| MUMBAI EXPRESS BRIGHTON LTD | Brighton | A rating |
| MUMBAI FUSION CATERING LTD | HARROW | A rating |
| Mumbai In Minutes | London | A rating |
| Mumbai Masala Ltd T/A Street Food Junction | South Harrow | A rating |
| Mumbai Rock Cafe Ltd | Penicuik | A rating |
| Mumbai Sandwich Station | Leicester | A rating |
| MUMBAI SPICE INDIAN RESTAURANT LTD | New Moston | A rating |
| MUMBAI SQUARE RESTAURANT LIMITED | SHEPPERTON | A rating |
| Mumbai Street Food Ltd | Liverpool | A rating |
| Mumbai Wok Ltd | Kent | A rating |
| MUMBAI WOKINGHAM LTD | Wokingham | A rating |
| Mumbaikar Vadapav Limited | Harrow | A rating |
| Mumby's Live-in Care Ltd | Abingdon | A rating |
| Mums & Spice Company Ltd | London | A rating |
| Mumtaz Chai Ltd | Oldham | A rating |
| MUMTAZ ENTERPRISES LTD | GILLINGHAM | A rating |
| MUMTAZ RESTAURANT LTD | Northampton | A rating |
| MUMU'S TINEY HOME NURSERY LIMITED | Ilford | A rating |
| MUMZIES MUNCHIES LTD | Ilford | A rating |
| MUN (UK) LTD | Old Harlow | A rating |
| MUNAFFA LTD | London | A rating |
| Munal Tandoori LTD | antrim | A rating |
| Munawar & Co Ltd | Bradford | A rating |
| Muncaster Visitor Management Limited | Ravenglass | A rating |
| MUNCHEEZ LIMITED | Luton | A rating |
| Munches Ltd | Manchester | A rating |
| Munchez Tasty Point Ltd | Doncaster | A rating |
| MUNCHIES BEVERAGE LIMITED | Brighton and Hove | A rating |
| Munchies Corporation Limited | Sheffield | A rating |
| MUNCHIES PIZZA BAR LTD | Huddersfield | A rating |
| Munchies4 Limited | Rotherham | A rating |
| Munchkin UK Trading Company, Ltd | Harrogate | A rating |
| MUNCHKINS RESTAURANTS LONDON LIMITED | London | A rating |
| Munchkinsports LTD | Chislehurst | A rating |
| Munchmead Ltd | Chelmsford | A rating |
| Munde Construction Ltd | Middlesex | A rating |
| Mundesley Convenience Store | Mundesley | A rating |
| Mundhi Limited | London | A rating |
| Mundipharma International Limited | Cambridge | A rating |
| Mundipharma Medical Company Ltd | Cambridge | A rating |
| Mundipharma Research Limited | Cambridge | A rating |
| Mundo Livre Digital Ltd | Warwick | A rating |
| Muneeb Store | Glasgow | A rating |
| MUNEEM DELIGHTS LIMITED | Bradford | A rating |
| Muneethai Ltd | Chatham | A rating |
| Munich Re UK Services Limited | London | A rating |
| Munir Bros Halal poultry Ltd | Birmingham | A rating |
| Munir Food Stores Limited | London | A rating |
| MUNIR TATAR LIMITED T/A Munir Tatar Associates | London | A rating |
| Munira Designer Limited | BIRMINGHAM | A rating |
| Munnelly Support Services Limited | Kings Langley | A rating |
| Munnypot Limited | Crawley | A rating |
| Munro Medical Centre | Spalding | A rating |
| Munro Studio Limited | Guildford | A rating |
| MUNSHI CORPORATE LTD | Salisbury | A rating |
| Munshi's Halal (Dewsbury) Limited | Dewsbury | A rating |
| Munster Holdings Limited | London | A rating |
| Munster Joinery (U.K) Limited | Wellesbourne | A rating |
| Munters Limited | Wyboston | A rating |