| 3420 | Guide printing | |
| 3420 | Guide publishing | |
| 3420 | Guide, programme, printing | |
| 3829 | Guided missiles manufacturing | |
| 3902 | Guitar, including electric, manufacturing | |
| 1210 | Gum gathering | |
| 3529 | Gum size manufacturing | |
| 3419 | Gummed label, not printed or embossed, manufacturing | |
| 3420 | Gummed label, paper, printing | |
| 3419 | Gummed paper manufacturing | |
| 3420 | Gummed seal, paper, printing | |
| 3825 | Gummed tape moistener manufacturing | |
| 3419 | Gummed tape, cloth and paper, manufacturing | |
| 3903 | Gun and rod case manufacturing | |
| 3829 | Gun carriage manufacturing | |
| 3825 | Gun data computer, fire control equipment, manufacturing | |
| 3829 | Gun manufacturing | |
| 3829 | Gun mount and part manufacturing | |
| 3852 | Gun sight manufacturing | |
| 3829 | Gun turret and part manufacturing | |
| 5000 | Gunite work on construction project | |
| 3529 | Gunpowder manufacturing | |
| 3829 | Gunsmith shop | |
| 3902 | Gut or metal musical string manufacturing | |
| 3111 | Gut, animal except fish, fresh, silted or dried, manufacturing | |
| 3559 | Gutta percha product manufacturing | |
| 3559 | Gutta siak product manufacturing | |
| 3813 | Gutter, sheet metal, manufacturing | |
| 3691 | Guttering, ceramic, manufacturing | |
| 3220 | Gym clothing cutting and sewing | |
| 6200 | Gym equipment retailing | |
| 6100 | Gym equipment wholesaling | |
| 9490 | Gymnasium | |
| 9490 | Gymnastic school | |
| 3851 | Gynaecological supply manufacturing | |
| 9331 | Gynaecologist, private practice | |
| 3699 | Gypsum board manufacturing | |
| 3699 | Gypsum insulation board manufacturing | |
| 3699 | Gypsum lath manufacturing | |
| 2909 | Gypsum mining or quarrying | |