| MSG NETWORK LTD | ELGIN | A rating |
| MSG Sandhurst Ltd | Camberley | A rating |
| MSG Scotland Limited | Camberley | A rating |
| MSH CLOTHING UK LTD | Barking | A rating |
| MSI Computer (UK) Ltd | London | A rating |
| MSI Enterprises Ltd | Croydon | A rating |
| MSI Reproductive Choices | London | A rating |
| MSI Stores | Luton | A rating |
| MSIG Corporate Services (Europe) Limited | London | A rating |
| MSJ SONS LTD | Birmingham | A rating |
| MSK & SON LTD | Shrewsbury, | A rating |
| MSK Doctors & Associates Limited | Sleaford | A rating |
| MSK E-COM LTD | Glasgow | A rating |
| MSK FOOD & WINE LTD | Harrow | A rating |
| MSK Healthcare Ltd | Nottingham | A rating |
| MSL (UK) Ltd | Manchester | A rating |
| MSL Cabling Limited | Feltham, Hounslow | A rating |
| MSL Group London Limited | London | A rating |
| MSL Oilfield Services Ltd | Chandlers Ford | A rating |
| MSL Parts LTD | Birmingham | A rating |
| MSM 90 LIMITED | HIGH WYCOMBE | A rating |
| MSM Commercials Ltd | Carrickmore, Omagh | A rating |
| MSM Global Investments LLP | London | A rating |
| MSM HEALTHCARE LIMITED | Clacton On Sea | A rating |
| MSM Medicare Limited T/A St. James Pharmacy | London | A rating |
| MSM ML8 LIMITED | Carluke | A rating |
| MSM SITE SOLLUTIONS LIMITED | London | A rating |
| MSM SITE SOLUTIONS LIMITED | Slough | A rating |
| MSM Subs Limited | Sutton Coldfield | A rating |
| MSM Supermarket Ltd | Birmingham | A rating |
| MSM Universal Ltd | Manchester | A rating |
| MSMR Architects Limited | London | A rating |
| MSMS Supermarket Limited | Brentwood | A rating |
| MSMS SUPERSTORE LIMITED | Brentwood | A rating |
| MSN BEXLEY LIMITED | Bexleyheath | A rating |
| MSN Development Ltd | Manchester | A rating |
| MSN Laboratories Europe Limited | Letchworth | A rating |
| MSN Pharm Ltd | Tipton | A rating |
| MSN RETAIL (BENWICK) LTD | Benwick | A rating |
| MSN Retail Limited T/A Spar and The Ladz Ely | Cambridgeshire | A rating |
| MSNA Traders Ltd | London | A rating |
| MSNP Limited T/A Mirch Masala | Leicester | A rating |
| MSP Associates Ltd | Ilford | A rating |
| MSP Systems Ltd. | Bedfordshire | A rating |
| MSP Technologies Ltd | Carnforth | A rating |
| MSP UK Limited | Hatch end | A rating |
| MSP Wolves LTD t/a Mr Singh's Pizza | Wolverhampton | A rating |
| MSPC Limited T/A Giant Health Care Services | Corby | A rating |
| Msphere Ltd | Buckingham | A rating |
| MSPS CONSULTANCY LIMITED | Glasgow | A rating |
| MSPUTTU LTD | Llandudno | A rating |
| MSQUIRE IT SERVICES LTD | Reading | A rating |
| MSR Food Services Ltd | Colchester | A rating |
| MSRT CONSULTANTS UK LIMITED | London | A rating |
| MSS BUILDING SERVICES LIMITED | WILLENHALL | A rating |
| MSS Care Ltd | Weston Super Mare | A rating |
| MSS Infrastructure Limited | Watford | A rating |
| MSS PRODUCTS HOLDINGS LIMITED | Manchester | A rating |
| MSSA Investments Ltd | Harrow | A rating |
| MSSL (GB) Limited | Gateshead | A rating |
| MSSL (GB) Limited | Derby | A rating |
| MSSV GROUP LTD | Southend-On-Sea | A rating |
| MSSW FOODS LTD | DUNFERMLINE | A rating |
| MST & JAMES LTD | WOLVERHAMPTON | A rating |
| MST Europe Limited | London | A rating |
| MST Ltd - Marine Specialised Technology Ltd | Bromborough | A rating |
| MST MOTORS LTD | Birmingham | A rating |
| MST SWEET LTD | LEICESTER | A rating |
| MST Systems Limited | Malvern | A rating |
| MSTP Consulting Limited | Kent | A rating |
| MSTYELS STUDIO LTD | LONDON | A rating |
| MSubs Ltd | Plymouth | A rating |
| MSUK TRANSPORT LIMITED | WOLVERHAMPTON | A rating |
| mSupply Services UK Limited | London | A rating |
| MSV Restaurants Ltd T/A Tattva Indian Kitchen | Farnborough | A rating |
| MSV Retail Limited T/A MFG Belmont | Sowerby Bridge | A rating |
| MSV Trading Ltd TA Brookside Convenience Store | Rugby | A rating |
| MSWIPE TECHNOLOGIES (UK) PRIVATE LIMITED | Edgware | A rating |
| MSX International Ltd | Colchester | A rating |
| MT ATTRACTIONS LTD | BELLSHILL | A rating |
| MT COFFEE LTD | Colchester | A rating |
| MT COMPONENTS LIMITED | BIRMINGHAM | A rating |
| MT DENTAL CARE LIMITED | London | A rating |
| MT Energy Limited | Leicester | A rating |
| MT Energy Limited | Bolton | A rating |
| MT EXPRESS LIMITED | Swindon | A rating |
| MT GLOBEX LTD | Walsall | A rating |
| MT HIGH TECH LTD | Warrington | A rating |
| MT LOGISTICS GROUP LTD | Birmingham | A rating |
| MT TELECOMS LTD | London | A rating |
| MT UK Solicitors Limited | Twickenham | A rating |
| MT2M Media Limited | London | A rating |
| MTA WORLDWIDE LIMITED | Grays | A rating |
| MTALX Limited | London | A rating |
| MTC Engineering (Cambridge) Limited | Cambridge | A rating |
| MTC KITCHENS SPECIALISTS LTD | BIRMINGHAM | A rating |
| MTC Media Ltd | Dundee | A rating |
| MTC Northwest Ltd | Kirkby | A rating |
| MTC Solicitors Ltd | London | A rating |
| MTD SHEETS LTD | Croydon | A rating |
| MTD UK & Ireland Ltd | Swindon | A rating |
| MTech Engineering & Design Solutions Ltd. | AUGHNACLOY | A rating |
| MTEST LABS LIMITED | London | A rating |
| Mtg Catering Ltd | Birmingham | A rating |
| MTHD Project Limited | London | A rating |
| Mthree Corporation Consulting Ltd | London | A rating |
| MTI Contractor Limited | Slough | A rating |
| MTI Welding Technologies Limited | Dudley | A rating |
| Mtivity Limited | London | A rating |
| MTIX LTD | BRIGHOUSE | A rating |
| MTJ International Limited | London | A rating |
| MTJ6 Limited | Bradford | A rating |
| MTK DESIGN & FURNISHINGS LIMITED | Bradford | A rating |
| MTK GROUP LTD | ILFORD | A rating |
| MTK Wireless Limited " MediaTek" | Cambridge | A rating |
| MTKUK Ltd | Bicester | A rating |
| MTL Financial LTD | London | A rating |
| MTL VENTURE LIMITED | Northampton | A rating |
| MTM CARE SERVICES LIMITED | LEICESTER | A rating |
| MTM Engineering | Armagh | A rating |
| MTM FLEET MAINTENANCE LIMITED | northampton | A rating |
| MTM London Limited | London | A rating |
| MTN DISTRIBUTION AND SERVICES LTD | London | A rating |
| MTN Home & Gifts Ltd | Dunfermline | A rating |
| MTorres UK Limited | Saltney | A rating |
| MTP COOLING LTD | Slough | A rating |
| MTQ TRADING LTD | London | A rating |
| MTR Corporation (Crossrail) Limited | London | A rating |
| MTR Corporation Limited | London | A rating |
| MTR RETAIL LTD | Cardiff | A rating |
| MTS Healthcare | Basildon | A rating |
| MTS Investment LTD | Gwent | A rating |
| MTS Logistics | Coalville | A rating |
| MTS PROPERTY SERVICES LTD | LONDON | A rating |
| MTS Systems Ltd | Leeds | A rating |
| MTSD SERVICES LTD T/A SUNNY SPICE | CORNWALL | A rating |
| MTV Networks Europe | London | A rating |
| MTX Consulting UK Limited | Pinner | A rating |
| MTX Contracts Ltd | Handforth | A rating |
| MU CIVIL LTD | London | A rating |
| MU DISTRIBUTORS LTD TA CHOTPOTI LOUNGE | London | A rating |
| Mu Education & Career Limited | Silchester | A rating |
| Mu Mu Experience Limited | Maidstone | A rating |
| MU PROPERTIES | ROTHERHAM | A rating |
| Mu Sigma Limited | North Harrow | A rating |
| Muacha limited | Durham | A rating |
| MUB3 UK LTD | Ilford | A rating |
| MUBARAK DENTAL LIMITED | Edinburgh | A rating |
| Mubarak Foods Ltd | Birmingham | A rating |
| MUBARIK HALAL MEAT LTD | Morden | A rating |
| Mubashir Nawaz | London | A rating |
| MUBBASHER NABI t/a Peppers Takeaway | Alfreton | A rating |
| MUBI UK Limited | London | A rating |
| MUBRBIRKEN COFFEE LIMITED | BIRKENHEAD | A rating |
| Mubrchester Coffee Ltd T/A Muffin Break | Chester | A rating |
| Muc-Off Ltd | Poole | A rating |
| MuchLoved Limited | Amersham | A rating |
| Muckamore Cricket & Lawn Tennis Club | Antrim | A rating |
| Muckle Brig Limited | Edinburgh | A rating |
| Muckle LLP | Newcastle upon Tyne | A rating |
| Muckle Media Limited | Edinburgh | A rating |
| Mud Brand Limited | Newcastle upon Tyne | A rating |
| Mudappa Managooli T/A College Road Dental Care | Rotherham | A rating |
| Muddy Machines Ltd | London | A rating |
| MuddyBoots Nursery Ltd | York | A rating |
| Mudeford Bay Ltd Trading as Alexander's Fish and Chips | Lymington | A rating |
| MUDUK INVESTMENT LIMITED | LONDON | A rating |
| MUDUK RESTAURANT LTD | Mitcham | A rating |
| Muehlhan Wind Service A/S | Hull | A rating |
| Mueller Europe Limited | West Midlands | A rating |
| Mueller International Holdings Limited | Southampton | A rating |
| Muf Architecture/Art LLP | London | A rating |
| Muffin Affairs Limited | Wokingham | A rating |
| Muffin break harrow ltd | Harrow | A rating |
| Muffin Consultancy Group Limited | Middleton | A rating |
| MUFG Bank, Ltd. | London | A rating |
| MUFG CORPORATE MARKETS (UK) LIMITED | Leeds | A rating |
| MUFG FUND SERVICES (UK) LIMITED | London | A rating |
| MUFTI SUPERSTORE LTD | Birmingham | A rating |
| Mugan Services Ltd | London | A rating |
| Mugen Euro Co Ltd | Milton Keynes | A rating |
| Mughal & Construction Ltd | Croydon | A rating |
| Mughal Driving School Ltd | Derby | A rating |
| Mughal Grocers Ltd T/A Mughal Grocers | Manchester | A rating |
| Mughal In West Limited | Hendon | A rating |
| MUGHAL SIGN & PRINT LTD | ROMFORD | A rating |
| MUGHALS RESTAURANT & SWEET CENTRE | BRADFORD | A rating |
| MUGRUM Ltd | Hamilton | A rating |
| MUHAFAH AVIATION SERVICES (UK) LTD | Slough, Berkshire | A rating |
| MUHAMMAD ASIF AUTO SPARE PARTS UK LTD (14476760) | ENGLAND | UK Expansion Worker: Provisional |
| Muhammad Asif T/A Bismillah Roti House | Halifax | A rating |
| Muhammad Ayub Ltd | Southall | A rating |
| Muhammad Faraz T/A Phoenix Petroleum | Warrington | A rating |
| Muhammad Ghufran | Rochdale | A rating |
| Muhammad Husham Saleem T/a Caprinos Pizza | Stoke on Trent | A rating |
| Muhammad Ilyas: Trading as Everfresh Butchers | Milton Keynes | A rating |
| Muhammad Nadeem T/A N-D Builders | Dewsbury | A rating |
| MUHAMMAD RAFIQ SHEHZAD PVT LTD | London | A rating |
| MUHAMMAD RAYYAN LTD | London | A rating |
| Muhammad Roheel T/a The Hair Salon | Dewsbury | A rating |