| MG Motorcycles Limited | Ipswich | IP3 8EE | 1, 2 | View → |
| Mga Autos | London | W10 6RQ | 4 | View → |
| Mga Autos Ltd | Staffordshire | B78 1JA | 4, 5, 7 | View → |
| Mga Garage Services Limited | Southampton | SO14 0QL | 4 | View → |
| MGB Motors Ltd | Aberdeenshire | AB42 5DN | 4 | View → |
| MGD Commercial & Motor Services | Kendal | LA9 6ND | 1, 2, 4, 5, 7 | View → |
| MGF Motors | Ulverston | LA12 0RR | 4 | View → |
| MGH Autocare | Halstead | CO9 2SZ | 4 | View → |
| MGK Motors | Crieff | PH6 2JP | 4 | View → |
| MGL Autocare | Carlisle | CA4 8PL | 4 | View → |
| MGM Garage | Liverpool | L6 9EY | 4 | View → |
| MGM Tyres & MOTs | Mitcham | CR4 4BE | 4 | View → |
| MGR Auto Services (UK( Limited | Crowborough | TN6 1PU | 4 | View → |
| MGs MOTORCYCLES | Newport | NP19 0DW | 1, 2 | View → |
| MGS Quality Car Repairs Ltd | Tanlan | CH8 9UU | 1, 2, 4, 5, 7 | View → |
| MH Autos | Dewsbury | WF13 3JW | 4 | View → |
| MH Autos Edinburgh Ltd | Edinburgh | EH12 8AJ | 4 | View → |
| MH Autos Peterborough Ltd | Peterborough | PE1 5YW | 4, 7 | View → |
| MH Garage and MOT Centre Ltd | Leicester | LE2 6BR | 4, 5, 7 | View → |
| MH Motor Experts Ltd | Wokingham | RG40 5RE | 4 | View → |
| MH Tyres Bath | Bath | BA2 7HY | 4 | View → |
| MHB Motorcycles | Kirkby Stephen | CA17 4HT | 1, 2 | View → |
| Mi Garage | Glasgow | G5 8HE | 4, 7 | View → |
| Miata Auto Services | Sheffield | S20 5BB | 4 | View → |
| Mic Auto Services Ltd | Barking | IG11 0JS | 4, 7 | View → |
| Michael A Key Automobile Engineering | Nottingham | NG10 2FE | 4, 5, 7 | View → |
| Michael Alexander | Chester | CH4 8RU | 4 | View → |
| Michael Foulkes Saab Specialist | Kinmel Bay | LL18 5JA | 4 | View → |
| Michael George Commercials Limited | Rotherham | S60 1BD | 4, 5, 7 | View → |
| Michael Lewis | Shrewsbury | SY4 1LH | 4 | View → |
| Michael Motors | Wisbech | PE13 2RU | 4 | View → |
| Michael O'Connor Testing Limited | Morecambe | LA3 3BT | 4, 5, 7 | View → |
| Michael Roe Motor Engineer | Market Weighton | YO43 3GA | 4, 5, 7 | View → |
| Michael Smith Motors Ltd | Cheltenham | GL52 6EJ | 4 | View → |
| Michael Taylor Cars | Liverpool | L25 5JZ | 4 | View → |
| Michael Theobald Garage Limited | Preston | PR25 5DA | 4 | View → |
| Michael Watkins Service and MOT Centre | Hereford | HR4 0EE | 4 | View → |
| Michael Wicks Garage Limited | Wisbech | PE13 2SJ | 1, 2, 4, 5, 7 | View → |
| Michaelmuir Garage | Ellon | AB41 7TE | 4 | View → |
| Micheldever Tyre & Auto Services | Winchester | SO21 3AP | 4 | View → |
| Mick Avery and Co | Swadlincote | DE11 8DD | 1, 2, 4, 5, 7 | View → |
| Mick Cawley Motor Engineers Ltd | Spalding | PE12 6EH | 4, 5, 7 | View → |
| Mick Coop Motors Limited | Cradley Heath | B64 6PS | 4 | View → |
| Mick Gould Commercials Limited | East Sussex | TN5 7PJ | 1, 2, 4, 5, 7 | View → |
| Mick Surman Motorcycles Ltd | Aylesbury | HP22 5AS | 1, 2 | View → |
| Mick's Garage | Kirkby Lonsdale | LA6 2HP | 4, 5, 7 | View → |
| Mick's Garage (Bombay Street) Limited | London | SE16 3UX | 4 | View → |
| Mick's Motor Services | Ayr | KA6 7SG | 4 | View → |
| Micklefield MOT & Service Centre | High Wycombe | HP13 7HB | 4 | View → |
| Mickleton Service Station | Barnard Castle | DL12 0JR | 4 | View → |
