| 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 |
| Msheireb Properties | Real Estate |
| Multicon Trading | Conglomerates |
| Musandum International General Trading and Contracting (L.L.C) | Construction |
| Mutli Services Company Qatar | Information Technology |
| MZ & Partners | Construction |
| M A Consultants | Industrial Manufacturing |
| M.PALLONJI-QATAR | Construction |
| MACE Qatar WLL | Construction |
| Madina Group W.L.L. | Industrial Manufacturing |
| Magnum Trading & Technical Services WLL | Industrial Manufacturing |
| Maha Al Khaleej For Contracting Co. W.L.L. | Construction |
| Majestic International WLL Qatar | Conglomerates |
| MAKNOON TRADING & CONTRACTING CO. | Construction |
| MaktApp | Information Technology |
| malomatia | Information Technology |
