| CUT TECH Trading & Contracting | Construction |
| CUT TECH Trading & Contracting | Construction |
| Crystal Food Oil Qatar | Oil and Gas |
| Crystal Food Oil Qatar | Oil and Gas |
| Crown Trading & Contracting Company | Industrial Manufacturing |
| Crown Trading & Contracting Company | Industrial Manufacturing |
| Crown Group | Industrial Manufacturing |
| Crown Group | Industrial Manufacturing |
| Crompton International Trading & Contracting Company W.L.L. | Construction |
| Crompton International Trading & Contracting Company W.L.L. | Construction |
| Creo Co | Power and Utilities |
| Creo Co | Power and Utilities |
| Creative Rent A Car & Transport, Trading Co WLL | Conglomerates |
| Creative Rent A Car & Transport, Trading Co WLL | Conglomerates |
| Creative Action Design LLC | Services |
| Creative Action Design LLC | Services |
| Cozmo Travel Qatar | Leisure and Tourism |
| Cozmo Travel Qatar | Leisure and Tourism |
| Country Rent A Car | Transport |
| Country Rent A Car | Transport |
| COREO | Real Estate |
| COREO | Real Estate |
| Conxion Logistics & Heavy Equipments | Transport |
| Conxion Logistics & Heavy Equipments | Transport |
| Convert Engineering & Trading | Construction |
