| G4S Qatar WLL | Industrial Manufacturing |
| Gallop Shipping Company | Transport |
| Garage Zain Scrap | Conglomerates |
| Gardenia Flowers | Retail |
| Gas Exporting Countries Forum | Governmental Institutions |
| Gasal Company (Q.S.C.) | Industrial Manufacturing |
| Gate to Wellness | Health Care |
| General Authority for Minors Affairs | Governmental Institutions |
| General Authority of Customs | Governmental Institutions |
| General Retirement and Social Insurance Authority - Qatar | Governmental Institutions |
| General Switchgear and Electrical Material Factory | Industrial Manufacturing |
| General Syndicate | Construction |
| General Takaful W.L.L. | Financial Services |
| Genesis Engineering Services | Construction |
| Georgetown University - School of Foreign Service in Qatar | Education |
| Germin MED | Health Care |
| Ghadeer Interior Decorations | Services |
| Ghanem Al-Thani Holdings W.L.L. | Retail |
| Gharnata Consultant Engineers | Construction |
| Ginger Camel LLC | Media |
| Global Auto Parts W.L.L | Transport |
| Global Business Centre | Real Estate |
| Global Development Company WLL | Conglomerates |
| Global Enterprises Co | Industrial Manufacturing |
| Global Logistics & Services WLL | Transport |