| Medical Skin Clinics Ltd | Goring on Thames | A rating |
| Medically Ltd | Sileby | A rating |
| MEDICANA WINCHESTER LIMITED | Altrincham | A rating |
| MEDICAP SERVICES LTD | Norwich | A rating |
| Medicare Home Support Limited T/A Caremark (Norwich) | Norwich | A rating |
| MEDICARE LINK LTD | London | A rating |
| MediCare Pharmacy Group | Belfast | A rating |
| Medicare Services (MCR) Ltd | Manchester | A rating |
| Medicareplus International | Wembley | A rating |
| MEDICASIMPLE HEALTHCARE TECHNOLOGIES LIMITED | London | A rating |
| MEDICENTRE | WIGAN | A rating |
| Medichecks.com Ltd | Nottingham | A rating |
| Medichem (Wibsey) Limited T/A Medichem Pharmacy | Bradford | A rating |
| MEDICHEM PHARMACY LTD | MANCHESTER | A rating |
| Medichem(Leeds) Limited | Leeds | A rating |
| Medichut Ltd | Smethwick | A rating |
| Medici Healthcare Ltd | UCKFIELD | A rating |
| Medici Medical Practice | Luton | A rating |
| MEDICIN | Grays | A rating |
| Medicine 8 Ltd. Trading as Medicine Bakery | Wolverhampton | A rating |
| Medicine Box (Holborn) LTD | London | A rating |
| MEDICINE BOX (LEICESTER) LTD | Leicester | A rating |
| Medicine Box (London) Ltd | Wembley | A rating |
| Medicine Box (Nottingham) Limited | Nottingham | A rating |
| Medicine Buddha Foundation | Dartford | A rating |
| MEDICINE CLINIC LTD | SOUTHAMPTON | A rating |
| MEDICINE MARKET PLACE LTD | Preston | A rating |
| MEDICINES 4 U LTD | Pinner | A rating |
| Medicines and Healthcare products Regulatory Agency | London | A rating |
| Medicines Discovery Catapult Ltd | Macclesfield | A rating |
| Medicines Extra Healthcare Ltd | London | A rating |
| Medicines Plus LTD T/A Loves Farm Pharmacy | St. Neots | A rating |
| Mediclinic Pharmacy Limited | Gillingham | A rating |
| Medico Partners Ltd | Birmingham | A rating |
| MEDICOM DISTRIBUTION LIMITED (15544816) | LEICESTERSHIRE | A rating |
| Medicom Healthcare Limited | London | A rating |
| MEDICOMP UK LIMITED | Leicester | A rating |
| Medicos Prime Health Ltd | London | A rating |
| MEDICRAMA LTD | LONDON | A rating |
| MEDICREST LIMITED | SURREY | A rating |
| MEDICS-UK LIMITED, t/a Premier Private GP | Bagshot | A rating |
| Medicsensors Limited | York | A rating |
| MEDICSTAR (UK) LIMITED | ALTRINCHAM | A rating |
| Medicstar (UK) Ltd t/a Pelican Pharmacy | Altrincham | A rating |
| MEDICUS HEALTH LIMITED | London | A rating |
| Medicus Health Partners | London | A rating |
| Medicxi Ventures (UK) LLP | London | A rating |
| Medidata Exchange Ltd | Cardiff | A rating |
| Medidenta LTD | Welling | A rating |
| MEDIENT UNSTOPPABLE LIMITED | HARROW | A rating |
| Medify Ltd | London | A rating |
| Medigold Health Consultancy Limited | Northampton | A rating |
| Medigold Health Consultancy Limited | Northants | A rating |
| Medigreen Limited T/A Medigreen Pharmacy | Luton | A rating |
| MEDIHANDS CLIFTON | New Malden | A rating |
| MEDIHANDS HEALTHCARE | New Malden | A rating |
| MEDii Ltd | London | A rating |
| Medik8 Limited | Elstree | A rating |
| Mediline Supported Living Ltd | Liverpool | A rating |
| Medilink Communications Ltd. | Cheltenham | A rating |
| Medimab Biotherapeutics Ltd | Oxford | A rating |
| MediMatch Dental Laboratory | London | A rating |
| MedImmune Limited | Cambridge | A rating |
| Medimove Ltd | Greenwich | A rating |
| MEDIMPO LTD | CROYDON | A rating |
| MEDINA ACCOUNTANTS LIMITED | NOTTINGHAM | A rating |
| Medina Chemist Ltd | Nottingham | A rating |
| Medina Dairy Bolton Ltd | Bolton | A rating |
| Medina Food Group Limited | Bradford | A rating |
| MEDINA FOOD STORE & HALAL MEAT LTD | Watford | A rating |
| Medina Foods | Southampton | A rating |
| MEDINA HAIR & BEAUTY LTD | SLOUGH | A rating |
| Medina Islamic Educational & Cultural Centre | Windsor | A rating |
| MEDINA MOSQUE TRUST OF EDINBURGH | Edinburgh | A rating |
| Medina Stores | Southampton | A rating |
| MEDINAPHARM LIMITED | PLAISTOW | A rating |
| Medineeds UK Ltd | Taunton | A rating |
| Medinform Ltd | Wymondham | A rating |
| Medinova healthcare Ltd | HOUNSLOW | A rating |
| Medinox (London) Ltd | Tonbridge | A rating |
| MedIntellect Ltd | West Malling | A rating |
| Mediobanca S.p.A London Branch | London | A rating |
| MEDION ELECTRONICS LIMITED | Swindon, Wiltshire | A rating |
| MediPaCe Ltd | London | A rating |
| Medipills Ltd | Burnham-on-sea | A rating |
| Mediq Healthcare UK Limited | Derby | A rating |
| Medirex Limited | London | A rating |
| Medirite24 Ltd | Wolverhampton | A rating |
| Mediscan Diagnostic Services Limited | Denton | A rating |
| Mediserve | London | A rating |
| Mediservices Healthcare Limited | Redditch | A rating |
| MediSieve Limited | London | A rating |
| Mediso Medical Imaging Systems UK Limited | Farnborough | A rating |
| Medisonal Limited | London | A rating |
| Medistaff24 | Evesham | A rating |
| Mediterranean Shipping Company (UK) Ltd | Ipswich | A rating |
| Meditrade UK Ltd | London | A rating |
| Medius Software Limited | Manchester | A rating |
| MEDIVA LTD | London | A rating |
| Medivance Instruments Limited | London | A rating |
| Medivet Group Limited | Watford | A rating |
| MEDIVOYAGE SOLUTIONS LTD | COVENTRY | A rating |
| Mediwell Healthcare UK Limited | London | A rating |
| Mediwell Healthcare UK Ltd | London | A rating |
| Medix Health Limited | Heanor | A rating |
| MEDIX PHARMACY | STEVENAGE | A rating |
| MEDIX-AG LIMITED | HULL | A rating |
| Medlar Fruit Farms Ltd | Preston | A rating |
| MEDLEARN LTD | oxford | A rating |
| Medley Pharma Limited | Bootle | A rating |
| MEDLINE INDUSTRIES LIMITED | WARRINGTON | A rating |
| Medline Recruitment Ltd | Essex | A rating |
| Medlock Dry Construction Limited | HAILSHAM | A rating |
| Medlock Medical Practice | Manchester | A rating |
| Medlock Solicitors Limited | Manchester | A rating |
| Medly AI Limited | London | A rating |
| MedMatch Denta Ltd | Watford | A rating |
| medmix UK Ltd | Hungerford | A rating |
| Medneo Diagnostics UK Limited | London | A rating |
| Mednet Ltd | Leeds | A rating |
| MEDNJOY LTD | London | A rating |
| Medoc Healthcare Ltd | London | A rating |
| Medow Care Services Ltd | Hatfield | A rating |
| Medox Tutors Limited | Kings Langley | A rating |
| Medpace UK Limited | London | A rating |
| Medpack LTD | London | A rating |
| MEDPAL AI PLC | London | A rating |
| Medplus Healthcare Ltd | Upminister | A rating |
| MEDPRO AESTHETICS LTD | London | A rating |
| MEDRAF LIMITED | Norwich | A rating |
| Medreich PLC | Feltham | A rating |
| MEDS RESOURCES LTD | WIMBLEDON | A rating |
| Meds UK Ltd | Bridlington, | A rating |
| MEDS2YOU LTD | Stourbridge | A rating |
| Medsan Consultancy Limited | West Drayton | A rating |
| Medscheck Ltd | Gosport | A rating |
| MEDSCLINIC PHARMACY | WAREHAM | A rating |
| Medsmanagementuk Limited | Boston | A rating |
| Medstar Care & Support Limited | Palmers Green | A rating |
| Medstar Clinic Ltd | London | A rating |
| Medstrom Ltd | Castle Donington | A rating |
| MEDTECH CORP UK LTD | Nottingham, England | A rating |
| Medtechtomarket Consulting Ltd | Bromborough | A rating |
| Medtronic Limited | Watford | A rating |
| MEDUKCARE RECRUITMENT LIMITED | Great Bookham | A rating |
| Medusa 622 Limited | London | A rating |
| MEDVALLEY LIMITED | London | A rating |
| MEDWAY AND LAW LIMITED | LONDON | A rating |
| MEDWAY BUILDERS MERCHANTS LIMITED | Rochester | A rating |
| MEDWAY CARE SERVICES LIMITED | Edinburgh | A rating |
| Medway Community Healthcare CIC | Gillingham | A rating |
| Medway Council | Chatham | A rating |
| MEDWAY DRIVE-THRU PHARMACY LTD | Gillingham | A rating |
| MEDWAY HOMECARE LIMITED | Kent | A rating |
| Medway NHS Foundation Trust | Gillingham | A rating |
| MEDWAY SPORTS CLUB LIMITED | HIGHAM | A rating |
| Medwise AI Limited | Leeds | A rating |
| MEDXPERIENCE GLOBAL LIMITED | COVENTRY | A rating |
| Meech Static Eliminators Ltd | Witney | A rating |
| Meehu Limited | Redcar | A rating |
| Meehu Retail Limited | Hartlepool | A rating |
| MEELAN LIMITED | MANCHESTER | A rating |
| MEEM 76 Ltd T/A MEEM Associates | London | A rating |
| MEEM INTERNATIONAL TRADERS LTD | Bradford | A rating |
| Meemanda Rose Homecare Limited | Brighton & Hove | A rating |
| Meen Technologies Ltd | Hatfield | A rating |
| MEENA BAKERY LTD | Blackburn | A rating |
| Meenaco Limited | Birmingham | A rating |
| Meenmore Contracts Limited | Glasgow | A rating |
| MEENU G LONDON LIMITED | Bradford | A rating |
| MEENU LIMITED | LONDON | A rating |
| Meer & Co Chartered Accountants | London | A rating |
| Meer & Meer Ltd | Northolt | A rating |
| MEER JULHAS & CO LIMITED | LONDON | A rating |
| MEER KEBAB AND PIZZA LTD | Kingston Upon Thames | A rating |
| Meer United Limited | London | A rating |
| Meera Caterers London Ltd | Stanmore | A rating |
| MEERA DEVI LIMITED T/A ITJL | LONDON | A rating |
| Meera Girdhar Ltd | Bury | A rating |
| MEERA SWEETS LIMITED | Ilford | A rating |
| MEERALI TRADING LTD | London | A rating |
| MEERAN LTD | BASILDON | A rating |
| Meero Ltd | Purfleet | A rating |
| Meersaab Intl Ltd t/a Bandbox Laundry | Manchester | A rating |
| MEESHA GRAPHICS (LEICESTER) LIMITED | LEICESTER | A rating |
| MEET DEVELOPERS LIMITED | UXBRIDGE | A rating |
| Meet Life Sciences Limited | London | A rating |
| Meet Resources Limited | Bridgwater | A rating |
| Meet The Baby Ltd | Warrington | A rating |
| Meetang Limited trading as Lumpini Thai Restaurant | Dunstable | A rating |
| MEETASH CORP LTD | London | A rating |
| MEETAX LTD | Preston | A rating |
| Meeting The Needs Limited | Dagenham | A rating |
| MeetMore Ltd | London | A rating |
| MEETORIA PARTNERS LTD | London | A rating |
| Meezan Al-Way Ltd t/a Subway | Luton | A rating |
| Mefco Interiors Limited | London | UK Expansion Worker: Provisional |
| MEG Analytics Ltd | London | A rating |
| MEG Derby Limited | Foston | A rating |
| MEGA BEAUTY LIMITED | London | A rating |