| Middle East Business Development Co. LLC | Industrial Manufacturing |
| Middle East Cleaning Co | Services |
| Middle East Dredging Company Q.S.C. | Construction |
| Middle East Energy WLL | Conglomerates |
| Milano Travel | Leisure and Tourism |
| Millenium Chauffering WLL | Conglomerates |
| Millennium Travels | Leisure and Tourism |
| Mimar Design Qatar | Construction |
| Ministry of Economy and Commerce - Qatar | Governmental Institutions |
| Ministry Of Environment | Governmental Institutions |
| Ministry of Interior - Qatar | Governmental Institutions |
| Ministry of Municipality and Environment | Governmental Institutions |
| Ministry of Transport and Communications - Qatar | Governmental Institutions |
| Mirage International Property Consultants | Real Estate |
| Mirrikh Contracting WLL | Construction |
| Misnas Saad Almisnas Trad. & Transport | Services |
| Modern Trends Training & Consultancy | Education |
| Mohamed Yousuf Kafood & Sons Trading & Contracting Company | Industrial Manufacturing |
| Moka & Company | Food and Beverages |
| Mona Trading & Machinery | Industrial Manufacturing |
| Monsoon Trading and Contracting WLL | Conglomerates |
| Morgen Middle East Trading & Contracting | Conglomerates |
| Morison Menon Chartered Accountants and Partners LLC | Financial Services |
| Mosaic Contracting Company | Construction |
| Mowasalat Co. | Transport |
