| Saif Qatar Duct - Fab | Industrial Manufacturing |
| SAK Holding | Real Estate |
| SAK Trading & Contracting Company | Construction |
| SAL Contracting and Trading Company | Industrial Manufacturing |
| Salam Bounian Development Company P.S.C. | Real Estate |
| Salam International Investment Limited Q.S.C. | Construction |
| Salam Petroleum Services | Industrial Manufacturing |
| Salam Studio & Stores | Retail |
| Salam Technology | Information Technology |
| Salco Trading & Contracting Establishment | Industrial Manufacturing |
| Saleh Al Hamad Al Mana Company | Transport |
| Salem Trading Centre | Consumer Goods |
| Saltos Trading & Contracting | Conglomerates |
| Sama Properties | Conglomerates |
| Samba Financial Group - Qatar | Financial Services |
| Samko International Co. WLL | Conglomerates |
| Sarplast Qatar W.L.L. | Industrial Manufacturing |
| Sarvika and Company Qatar | Construction |
| Satal Qatar Contracting W.L.L. | Construction |
| Scientific & Technical Services Company W.L.L | Health Care |
| Sea Gulf Trading & Contracting WLL | Construction |
| Sealand Marine Services Qatar | Conglomerates |
| Sealine Beach Resort | Leisure and Tourism |
| Sealine Manpower Recruitment | Services |
| Season Engineering Group | Services |
