Trade unions
G
| Full Name | Short Name | Notes |
|---|---|---|
| Gasworkers Federation Trade Union | GFTU | |
| General Municipal and Boilermakers Amalgamated Trade Union | GMBATU | |
| General Municipal & Boilermakers Union | GMB | |
| General & Municipal Workers' Union | GMWU | formerly NUGMW |
| General Union of Loom Overlookers | GULO | |
| GMB Union | GMB | General, Municipal, Boilermakers' and Allied Trade Union (GMBATU) before 1987. |
| GMB Young Workers | GMBYW | Network for all GMB members aged up to and including 30. |
| Gold and Silver Allied Trade Union | Gold/Silver | |
| Graphical, Paper and Media Union | GPMU | formed 1991 from SOGAT and NGA |
| Greater London Council Staff Association | GLCSA |