| Navn | Postnummer | By |
|---|---|---|
| Gemina Termix A/S | 7451 | Sunds |
| GeoDrilling ApS | 7200 | Grindsted |
| Geopal System A/S | 2950 | Vedbæk |
| Georg Fischer A/S | 2630 | Taastrup |
| Gibo Plast A/S | 6900 | Skjern |
| Global AGV® | 7900 | Nykøbing Mors |
| Gottfred Petersen A/S | 5000 | Middelfart |
| GPV Group A/S | 7100 | Vejle |
| Granly Diesel A/S | 4320 | Lejre |
| Granzow A/S | 2600 | Glostrup |
| Gravlund Industrigummi A/S | 2750 | Ballerup |
| Green Energy | 7100 | Vejle |
| Grid Solutions Denmark | 6000 | Kolding |
| Grundfos Holding A/S | 8850 | Bjerringbro |
| Grønbech & Sønner A/S | 2450 | København SV |
| GTS-foreningen | 2630 | Taastrup |