| Dolphin Construction Co WLL | Conglomerates |
| Dolphin Est | Conglomerates |
| Dolphin Group WLL | Services |
| Dolphin Trading & Logistics W.L.L. | Transport |
| Domopan Qatar WLL | Construction |
| Draieh Contracting W.L.L. | Construction |
| Draieh Logistics Services Company W.L.L. | Transport |
| Dreamstan Tours Wholesaler W.L.L. | Leisure and Tourism |
| Drywall Qatar Ltd | Construction |
| DTDC Qatar W.L.L | Services |
| DTM | Media |
| Dubai Studio & Stores | Consumer Goods |
| Ducto Tennant Qatar WLL Qatar | Conglomerates |
| Dunes Catering W.L.L. | Food and Beverages |
| Dutest Qatar W.L.L. | Industrial Manufacturing |
| DYARCO International Group WLL Qatar | Conglomerates |
