| Hammer and Hand Trading & Contracting W.L.L | Construction |
| Hamton International | Construction |
| Hanson Doha Trading | Construction |
| Happy Journey Travels | Leisure and Tourism |
| Haribo Trading and Contracting Co W.L.L | Conglomerates |
| Hassad Barwa LLC | Agriculture |
| Hassad Food Company | Agriculture |
| Hassan Al Khater Law Office | Services |
| Hassanesco Trading and Contracting | Construction |
| Hassanesco Travel | Leisure and Tourism |
| Hawar Group WLL | Construction |
| Hawar Marine WLL | Conglomerates |
| Hazel Trading And Contracting WLL | Construction |
| HBK Engineering Services W.L.L. | Construction |
| Hegy International W.L.L | Services |
| Helpline Services Printing Press | Media |
| HEPWORTH PME QATAR WLL | Conglomerates |
| High Solutions | Conglomerates |
| Honest Manpower | Services |
| Horizons Media and Information Services W.L.L | Information Technology |
| Hospitality Development Company W.L.L. | Leisure and Tourism |
| How United Services | Construction |
| HQA Consulting | Construction |
| Hydro Master Pools | Construction |
| i4 Solutions W.L.L. | Information Technology |
