| Qatar Wooden Products Co WLL (QWPC) | Construction |
| QatarDebate | Education |
| Qatargas Operating Company Limited | Oil and Gas |
| Qatari Energy & Industrial Services | Oil and Gas |
| Qatari Diar Real Estate Investment Company | Real Estate |
| Qatari German Company for Medical Devices Q.S.C. | Health Care |
| Qatari German Switchgear Company W.L.L. | Industrial Manufacturing |
| Qatari Home Design & Consulting Engineering | Construction |
| Qatari Home Design And Engineering Consultants | Construction |
| Qatari Home for Design & Engineering Consultants | Construction |
| Qatari Industrial Equipment W.L.L | Industrial Manufacturing |
| Qatari Investors Group Q.S.C. | Industrial Manufacturing |
| Qatarian Western Equipment Trading & Contract W.L.L (QWETCO) | Oil and Gas |
| Qatofin Company Limited (Q.S.C.) | Oil and Gas |
| QBS International WLL | Construction |
| QD-SBG Construction WLL | Construction |
| 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 |
