| Hamad Bin Khalid Holding Co. | Construction |
| Hamad Bin Khalid Oil and Gas Services W.L.L | Construction |
| Hamad Bin Khalifa University | Education |
| Hamad Bin Khalifa University Press | Media |
| Hamad General Hospital | Health Care |
| Hamad Medical Corporation | Health Care |
| Haman Bin Khalid Bin Haman Engineering & Contracting Company WLL | Construction |
| 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 |
