| M Gailbraith Ltd |
| Gailbraith Barges |
| Galbraith Berges |
| Gaustad, McDonnell & Co |
| Gear Meat Preserving & Freezing Co of NZ Ltd |
| GH George & Co Ltd |
| George & McKenzie Ltd Auckland |
| Gippsland Steam Navigation Company Limited |
| Gisborne Harbour Board |
| Gisborne Sheep Farmers Frozen Meat Co Ltd |
| Gisborne Sheep Farmers Frozen Meat & Mercantile Company |
| Gisborne Sheep-Farmers Co. Ltd. |
| Gisbourne Lightering - Stevedoring Co Ltd |
| Glenside Steam Ship Company |
| Great Barrier Shipping Limited |
| Great Circle Shipping Company Limited |
| Grey River Steam tugs Co Ltd |
| Grey Valley Coal Co Ltd |
| Golden Fisheries Ltd |
| Golden Bay Shipping Nelson |
| Golden Bay Shipping Tataka |
| D Goldie & Sons |
| Goodrich Silvertown Tyres Cyristchurch |
| Greymouth Harbour Board |
| Grey River Steam Tug Co Ltd |
| Grey Valley Coal |
| Guardian Trust & Execetors Co NZ Ltd |
| Gubbs Kawau Services Ltd |
| Gulf Ferries |
| Gulf Harbour Ferries |
| Guthrie & Larnach NZ Timber &Woodware Factories |
| H C Grube I/S |