| Qatar Investment & Projects Development Holding Company | Construction |
| Qatar Investment Authority | Financial Services |
| Qatar Islamic Bank (Q.P.S.C) | Financial Services |
| Qatar Islamic Insurance Company (Q.S.C.) | Financial Services |
| Qatar Logistics W.L.L. | Transport |
| Qatar Lubricants Company Ltd. | Oil and Gas |
| Qatar Meta Coats W.L.L | Industrial Manufacturing |
| Qatar Metals Coating Company W.L.L. | Construction |
| Qatar Mining Company | Mining and Metals |
| Qatar Mobile Telephone and Communication Systems | Retail |
| Qatar Music Academy | Education |
| Qatar National Aluminium Panel Company | Industrial Manufacturing |
| Qatar National Bank (Q.P.S.C) | Financial Services |
| Qatar National Broadband Network | Telecommunications |
| Qatar National Cement Company (Q.S.C.) | Industrial Manufacturing |
| Qatar National Convention Centre | Services |
| Qatar National Import and Export Company | Food and Beverages |
| Qatar National Plastic Factory | Industrial Manufacturing |
| Qatar Navigation Q.P.S.C. | Transport |
| Qatar Oilfield Supply Centre WLL | Oil and Gas |
| Qatar Oman Investment Company Q.S.C. | Financial Services |
| Qatar Paving Stones | Industrial Manufacturing |
| Qatar Pest Control Company WLL | Services |
| Qatar Petrochemical Company Q.S.C. | Oil and Gas |
| Qatar Petroleum | Oil and Gas |
