| Mahin Spice LTD | East Sussex | A rating |
| Mahindra Advanced Design Europe (MADE) | Banbury | A rating |
| Mahindra Racing UK Ltd | Banbury | A rating |
| Mahir Ali | Huddersfield | A rating |
| Mahir Design UK Ltd T/A Mahir | London | A rating |
| MAHIR FIRE PROTECTION LTD. | LONDON | A rating |
| Mahir's Experience Ltd | Birmingham | A rating |
| MAHISHA TRADING LTD T/A NAZ BALTI | kent | A rating |
| MAHLE Industries UK Ltd | Northampton | A rating |
| Mahmood Upholstery Limited | London | A rating |
| Mahmoods Franchising Ltd | Bradford | A rating |
| Mahnisa News | London | A rating |
| Mahnush Limited T/A Euro Food Mart | London | A rating |
| MAHOGANY HOUSE(NEWTOWN)LTD T/A MAHOGANY CARE HOME | WIGAN | A rating |
| Mahon's Hotel | Enniskillen | A rating |
| Mahou, S.A. | London | A rating |
| MAHR CITY LIMITED | London | A rating |
| MAHRAJ LTD | Newark | A rating |
| Mahrosh Beauty Ltd | Manchester | A rating |
| MAHTAARR CHAM AND NYANKU ISSAC BOJANG | Brighouse | A rating |
| Mahteens Beauty Salon Ltd | Oldham | A rating |
| Mahteens Indian Takeaway Limited | Manchester | A rating |
| Mahvels Limited | Harrow | A rating |
| Mahyoshana Enterprises Limited | London | A rating |
| Mai Magnum Opus Limited | London | A rating |
| Maia Films | London | A rating |
| MAIA Tech Systems Ltd | Huddersfield | A rating |
| MAIA Technology Limited | London | A rating |
| Maiden Erlegh Trust | Earley | A rating |
| Maiden World Tour Ltd | London | A rating |
| MAIDENHEAD EXPRESS LTD | MAIDENHEAD | A rating |
| Maidenhead Kokoro Ltd | Maidenhead | A rating |
| Maidenhead Specsavers Hearcare Ltd | Maidenhead | A rating |
| MAIDENS LLC LIMITED | Eastleigh | A rating |
| Maido Deli Limited | London | A rating |
| Maidsafe.NET Ltd | Glasgow | A rating |
| Maidstone & Tunbridge Wells NHS Trust | Maidstone | A rating |
| Maidstone Borough Council | Maidstone | A rating |
| Maidstone Clinic Ltd | Manchester | A rating |
| MAIDSTONE COFFEE LTD | Ashford | A rating |
| Maidstone Food Investments Ltd TA Subway | Maidstone | A rating |
| Maidstone Specsavers Limited T/A Specsavers Opticians | Maidstone | A rating |
| Maier UK LTD | Burntwood | A rating |
| MAIG SERVICES LIMITED | ESSEX | A rating |
| Maihem Ltd | London | A rating |
| MAIK Telecoms Limited | Southampton | A rating |
| Mail Boxes ETC (UK) Limited | Chipping Norton | A rating |
| MAIL LINK UK LTD | Slough | A rating |
| Mailchain Limited | London | A rating |
| Mailing Technology & Sup[port Ltd | Romford | A rating |
| MAILPALLET LTD | Coventry | A rating |
| MAIN - TAKING AUTISM PERSONALLY | MIDDLESBROUGH | A rating |
| Main Capital Partners UK LTD | London | A rating |
| MAIN COURSE PARTNERS LTD | London | A rating |
| Main Trading Limited | Manchester | A rating |
| Maine Medical Practice | Ballymena | A rating |
| Maine Surface Finishing | Coleraine | A rating |
| Mainfreight UK Limited | Feltham | A rating |
| Mainichi Newspapers of Japan | London | A rating |
| Mainline Menswear Ltd | Scarborough | A rating |
| Mainmark Ground Engineering (UK) | Milton Keynes | A rating |
| Mainprize Holdings Limited | Scarborough | A rating |
| Mainprize Offshore Limited | Scarborough | A rating |
| Mainroom Media Ltd | Manchester | A rating |
| Mainstay DRP | Downpatrick | A rating |
| Mainstay Marine Solutions Ltd | Pembroke Dock | A rating |
| Mainstreamtek UK Ltd | Uxbridge | A rating |
| Mainstreet Capital Partners Limited | London | A rating |
| MAINTAINED LIMITED | Mayfair | A rating |
| MAINTENANCE MEN LONDON LIMITED | London | A rating |
| MAINTENANCE PORTAL LTD | Batley | A rating |
| MAINTENANCE& LTD | Paisley | A rating |
| Mainway Insurance and Miica Services | Rochdale | A rating |
| Maiquez Ltd TA Subway | Carlisle | A rating |
| Mair Property Services | Oxford | A rating |
| MAISHA ONE LIMITED T/A INDIAN QUEEN | St Columb | A rating |
| MAISHA TECHNOLOGY LIMITED | London | A rating |
| Maison Clement Bakery and Patisserie Limited | Cambridge | A rating |
| Maison Estelle Limited | London | A rating |
| Maison Ferrand UK Ltd | London | A rating |
| Maison Francaise d'Oxford | Oxford | A rating |
| Maison Francois | London | A rating |
| Maison Moti Limited | Enfield | A rating |
| Maison puget french bakeries ltd | London | A rating |
| Maison Sport | London | A rating |
| MAISON SUZU CO., LTD. | London | A rating |
| Maisto e Associati | London | A rating |
| Maita Care Services Limited | Haslemere | A rating |
| Maitie Limited | London | A rating |
| MAITLA & CO LTD | Glasgow | A rating |
| MAITLAND RETAIL LTD | EDINBURGH | A rating |
| Maitri Liverpool Limited | Liverpool | A rating |
| MAITY CONSULTING LTD | Leicester | A rating |
| Maiva Corporation Limited | Edinburgh | A rating |
| MAJ BUILDING CONTRACTORS LTD | Leeds | A rating |
| MAJAJAN LTD | Birmingham | A rating |
| MAJD PETRO LTD | Reading | A rating |
| MAJEDI HOLDINGS LIMITED | Ilford | A rating |
| Majeed Properties Limited | Rochdale | A rating |
| Majesco UK Limited | London | A rating |
| MAJESTIC CARE HOME LIMITED | Handsworth | A rating |
| Majestic Care Management Ltd | Romford | A rating |
| Majestic Care North West Ltd. | Burnley | A rating |
| MAJESTIC FLAVOURS LTD | Scotland | A rating |
| MAJESTIC JUNCTION COMPANY LTD | PINNER | A rating |
| MAJESTIC MCR LTD | Manchester | A rating |
| MAJESTIC MEAT LTD | Bradford | A rating |
| Majestic Retail Ltd | London | A rating |
| MAJESTIC RISE CONSTRUCTIONS LTD | Surbiton | A rating |
| MAJESTIC SCENTS LTD | Ilford | A rating |
| Majestic Skin Care Ltd | Walsall | A rating |
| Majestic Taste LTD T/A Al Faisals | Birmingham | A rating |
| Majestic Weddings Limited | Manchester | A rating |
| Majestic Wine Warehouses Limited | Watford | A rating |
| Majestic-12 Ltd | Birmingham | A rating |
| MAJESTIK AESTHETICS LIMITED | Staines-Upon-Thames | A rating |
| MAJHA'S TRANSPORT LIMITED | London | A rating |
| MAJHAIL & SONS LIMITED T/A LONDIS | WEST SUSSEX | A rating |
| MAJHAIL LTD | WEDNESBURY | A rating |
| Majhu & Majhu Ltd | Glasgow | A rating |
| Maji Financial Wellbeing Ltd | Beckenham | A rating |
| MAJLIS-E-ISHAATUL QURAAN | LEICESTER | A rating |
| Major Chahal, Govinder Chahal, Pulvinder Chahal, Shuvneet Chahal T/A Stradbroke Post Office and Convenience Store & Premier | Sheffield | A rating |
| Major Commercial Property Ltd | London | A rating |
| MAJOR CURRY AFFAIR BURNTWOOD LTD | Burntwood | A rating |
| MAJOR CURRY AFFAIR LTD | Tipton | A rating |
| Major Domicile ltd | Grays | A rating |
| MAJOR ESTATES (HARROW) LIMITED | Harrow | A rating |
| Major Foods Ltd | Barking | A rating |
| Major League Baseball Europe Limited | London | A rating |
| Major Players Limited | London | A rating |
| Major Styles Limited | Cardiff | A rating |
| MAJOR TRADING INTERNATIONAL LTD | London | A rating |
| Major Travel Limited | Richmond | A rating |
| Majorlift Hydraulic Equipment Ltd | Wotton Under Edge | A rating |
| Majorstage Limited | Northwich | A rating |
| MAK Building & Electric Maintenance Ltd. | Peterborough | A rating |
| Mak Building Services Pvt Ltd | Leicester | A rating |
| MAK BUSINESS CONSULTANTS LTD | Luto | A rating |
| Mak Education Limited | London | A rating |
| MAK FOODS (HW) LIMITED | High Wycombe | A rating |
| MAK GLOBAL CONSULTANTS LTD | Ashton-Under-Lyne | A rating |
| Mak Halal Bradford Limited | Bradford | A rating |
| Mak Halal Walsall Ltd | Walsall | A rating |
| MAK INTEGRATED SERVICES LIMITED | Manchester | A rating |
| MAK MORE LTD T/A Southchurch News | Nottingham | A rating |
| Mak Stores Limited | Newark | A rating |
| MAK SUB LTD | St Dials | A rating |
| Mak Support Services Ltd | London | A rating |
| MAK UK CA Services Ltd | Birmingham | A rating |
| MAK WINDOW & DOOR FABRICATION LTD | Milton Keynes | A rating |
| MAK-SYSTEM GROUP LIMITED | London | A rating |
| Makamana Ltd | Nottingham | A rating |
| Makan Rights | LONDON | A rating |
| Makani Arab Limited | Edinburgh | A rating |
| Makans Ltd | Luton | A rating |
| MAKBAL CONSULTANT LTD | Brighton | A rating |
| MAKDA POULTRY LTD | LEICESTER | A rating |
| MAKE A TRADE LTD | Glasgow | A rating |
| Make Agency | Leamington Spa | A rating |
| Make and Grow Ltd ta Progression | London | A rating |
| Make Believe Ideas | Berkhamsted | A rating |
| Make Honey Ltd | London | A rating |
| Make it Matter Limited | Winchester | A rating |
| Make Limited | London | A rating |
| Make Me Feel Ltd | LONDON | A rating |
| MAKE MORE SPACE CONSTRUCTION LTD | Luton | A rating |
| Make My Dabba Ltd | Wakefield | A rating |
| MAKE ONE LONDON LIMITED | Benfleet | A rating |
| Make Waves Swim School Ltd | Bideford | A rating |
| Make-up Your Mind Ltd | Reading | A rating |
| Makeney Hall Hotel Ltd T/A Makeney Hall Hotel | Belper | A rating |
| Makers Academy | London | A rating |
| Makes Sense UK Ltd | Birmingham | A rating |
| Makesworth Ltd | Harrow | A rating |
| Makevale Limited | Ware | A rating |
| Maki & Ramen SJQ Ltd | Edinburgh | A rating |
| Maki Manchester Ltd T/A Maki & Ramen | Manchester | A rating |
| Makin Metal Powders (UK) Ltd | Rochdale | A rating |
| Makindough Limited | London | A rating |
| Making Energy Greener Ltd | Formby | A rating |
| Making Moves London Ltd | London | A rating |
| Making Pictures Limited | London | A rating |
| Making Pictures Productions Ltd | London | A rating |
| Makintha Kantharupan T/A Oval Stores -Premier | Hereford | A rating |
| Makita (UK) Limited | Milton Keynes | A rating |
| Makita Manufacturing Europe Ltd | Telford | A rating |
| MAKIYAKI | Epsom | A rating |
| Makka Solicitors Ltd | London | A rating |
| Makkah (Nottingham) Ltd | Nottingham | A rating |
| Makkah International Foods Ltd | 27-29 hull road york | A rating |
| Makkah Oriental Food Stores Limited | Bournemouth | A rating |
| MAKKAH PROPERTIES LTD | BOLTON | A rating |
| MAKKAH TRAVEL BFD LTD | BRADFORD | A rating |
| MAKKAWAY TRAVEL LTD | BIRMINGHAM | A rating |
| Makki Management Limited | Staines-Upon-Thames | A rating |
| MAKKI MUSLIM SOCIETY | BOLTON | A rating |
| Makkina Limited | London | A rating |
| Makla Limited | Bournemouth | A rating |
| Mako Global Derivatives Partnership LLP | London | A rating |