| QDVC (Q.S.C) | Construction |
| QEC Group | Industrial Manufacturing |
| QHOLD Trading and Contracting W.L.L. | Services |
| QHOLD Trading and Contracting WLL | Conglomerates |
| Qingdao EMEI Ind & Tech Company | Industrial Manufacturing |
| QInvest LLC | Financial Services |
| QNB Financial Services SPC | Financial Services |
| Qnet Company | Industrial Manufacturing |
| Qore Alu Clad | Industrial Manufacturing |
| QSAT | Telecommunications |
| Qserve Qatar WLL | Services |
| QTec Group Limited W.L.L | Construction |
| QUALITY FOODS & SERVICES WLL | Food and Beverages |
| Quality Lab Tech | Health Care |
| Quality Trading Company WLL | Conglomerates |
| QUANTEX QATAR | Conglomerates |
| Qurtuba Computer & Electronics | Conglomerates |
| QVICORP WLL | Financial Services |
| Rabban Ready Mix Company WLL | Industrial Manufacturing |
| Rabban Stefanutti Stocks LLC | Construction |
| Radiant Technical Trading WLL | Oil and Gas |
| Radisson Blu Hotel Doha | Leisure and Tourism |
| Rafale Trading WLL | Consumer Goods |
| Raghadan Paints Company Limited - Qatar | Industrial Manufacturing |
| Raha for Trading & Contracting Establishment | Construction |
