| 3R Building Construction Trading & Contracting | Conglomerates |
| 7 SERVICES | Conglomerates |
| A and S High Tech Solutions | Information Technology |
| A to Z Services | Services |
| A&C Construction & Installation Co. | Construction |
| A. Aziz Khalid Al-Ghanem Group | Real Estate |
| A.G MIDDLE EAST LANDSCAPE & IRRIGATION | Services |
| Aal Imran Housing WLL | Construction |
| Aamal Company Q.P.S.C. | Real Estate |
| Aamal Readymix | Industrial Manufacturing |
| Aamal Services Qatar W.L.L. | Services |
| Aamal Travel Lufthansa City Center | Leisure and Tourism |
| Aayan Leasing Co | Financial Services |
| ABC Project WLL | Construction |
| Abdul Hussain Mohammed Khoory Store | Retail |
| Abdulla Al Muftah Enterprises | Construction |
| Abdullah Abdulghani & Bros. Co. W.L.L. | Transport |
| Abdullah Al Khoory Trading and Contracting Company | Industrial Manufacturing |
| Abdullah Al Muftah Trading & Contracting Company W.L.L. | Construction |
| Abdullah Bin Eid Trading & Contracting Company WLL | Construction |
| Abdullah Trading Aluminum & Decoration Showroom Company W.L.L. | Industrial Manufacturing |
| Abdullah Trading, Aluminium & Decoration Showroom WLL | Construction |
| Abhinaya School of Fine Arts | Education |
| Able Partzland auto spares WLL | Transport |
| abmark | Conglomerates |
