| Abbreviation | Definition |
|---|---|
| GRMMA | Guyana Rice Milling Marketing Authority |
| GSB | Group Services and Benefits |
| GSMC | Global Service Management Center |
| GUEST | Greet, Understands, Educate, Suggest, Thank |
| GUTD | Get Up This Day |
| GWCM | Gavin Willis Creative Marketing |
| HABO | Help A Business Out |
| HAMA | Huntsville Aerospace Marketing Association |
| HAMC | Harvard Advertising and Marketing Club |
| HAMC | Healthcare Analytics and Marketing Communications |
| HDO | Highly Distributed Organisation |
| HFMS | Henk Fennebeumer Media Solutions |
| HHT | House Hunting Trip |
| HIMA | Houston Interactive Marketing Association |
| HLM | High Level Marketing |
| HM | High Maintenance |
| HMA | hidden marketing assets |
| HMA | Horticultural Marketing Associates |
| HMA | Hospitality Marketing Associates |
| HMA | Huntsman Marketing Association |