| Abbreviation | Definition |
|---|---|
| GEM | Galanti Electro Musical |
| GEM | Global Electric Motorcars |
| GEMC | Georgia Electric Membership Corporation |
| GEMF | Genesis Emerging Markets Fund |
| GEMS | Global Election Management Systems |
| GEN | Global Enterprise Networks, the corporation since 1992 |
| GENCO | General Commodities Warehouse and Distribution Company |
| GENI | Global Employees Network Incorporated |
| GENVAC | General Vacuum, Inc. |
| GEOS | Global Eco Systems |
| GEP | Geodetic Engineers of the Philippines |
| GEPCO | Gujranwala Electric Power Company |
| GEPCO | Gujranwala Electric Power Company (Pakistan) |
| GEPD | Great Estates Preservation Developments |
| GEPL | Ghodawat Energy Pvt Ltd |
| GER | Gerity Cablevision |
| GER | Gerity Radio Stations |
| GERA | Global Entertainment Retail Association |
| GERB | Gerber Foods |
| GERC | Ghost Education & Research Center |