 | GEOKONSEPT AS | 930011940 | OSLO |
| GEOLOFOTEN AS | 985606633 | VESTVÅGØY |
| GEO MØRE AS | 921116977 | TINGVOLL |
| GEO NORWAY AS | 930792829 | BÆRUM |
| GEOPLAN 3D AS | 979479204 | ØSTRE TOTEN |
| GEO PRO VEST AS | 921587317 | SUNNFJORD |
| GEORG ØYE ARKITEKTKONTOR AS | 968848275 | SURNADAL |
| GEORG STANGELAND AS | 967516414 | SOLA |
| GEOSENSE SA | 994503324 | ØSTRE TOTEN |
| GEO SOLUTION AS | 920972217 | OSLO |
| GEOTEKNIA AS | 933134334 | OSLO |
| GEOTEKNIKK ANLEGG AS | 928207897 | FREDRIKSTAD |
| GEOTEKNIKK AS | 917748306 | FREDRIKSTAD |
| GEOVITA AS | 961388821 | OSLO |
| GERHARD SVENNING AS | 975933091 | VÅGAN |
| GERO Geir Ropstad | 987466278 | KRISTIANSAND |
| GERT GILL AS | 993366323 | STAVANGER |
| GETIT BYGGSERVICE AS | 930096482 | FÆRDER |
| GF-ANLEGG GJERMUND FRORUD AS | 911949768 | SKIPTVET |
| G&G SNEKKERHUS AS | 921225202 | DRAMMEN |
| GH BYGG OG STILLASUTLEIE AS | 996789551 | ARENDAL |
| GH ENTREPRENØR AS | 916627041 | TIME |
| GHILARDI+HELLSTEN ARKITEKTER AS | 991864857 | OSLO |
| GHL HAGE & LANDSKAP AS | 980670899 | SKIEN |
| GH MASKIN AS | 917495718 | MOLDE |
| GH PROSJEKT AS | 928595382 | ASKØY |
| GHV AS | 922815038 | KRISTIANSAND |
| GILDESKÅL GRAVING OG TRANSPORT AS | 913430646 | GILDESKÅL |
| GILJE BETONGSERVICE AS | 923630295 | GJESDAL |
| GINSTATA NORGE AS | 918745459 | ASKER |
| GIPSLAND AS | 997442970 | STANGE |
| GISKE ANLEGG AS | 919495928 | GISKE |
| GISKEGJERDE EIENDOM | 988047643 | GISKE |
| GISLEBYE BYGG AS | 876062992 | GRAN |
| GISLE RØR AS | 919722401 | HÅ |
| GITHMARK SVEIN ARILD | 966708379 | LILLESAND |
| GIVAS IKS | 989016245 | KONGSVINGER |
| GIVE STEEL | 997539664 | |
| GJELSVIK TØMRER SERVICE | 925705063 | ASKØY |
| GJELTEN GRAVESERVICE DA | 990134081 | TYNSET |
| GJENNESTAD DRIFT | 969773589 | SANDEFJORD |
| GJ ENTREPRENØR AS | 987709944 | ASKER |
| GJERALDSTVEIT MEKANISKE AS | 980502090 | VOSS |
| GJERDALEN ENTREPRENØR AS | 925994685 | LILLEHAMMER |
| GJERDALEN SERVICE AS | 922689318 | LILLEHAMMER |
| GJERDEVIK MASKIN AS | 931686976 | TIME |
| GJERLØW MASKIN OG TRANSPORT AS | 917198772 | SOGNDAL |
| GJERMUND HELLUM AS | 991314784 | DRAMMEN |
| GJERMUNDRØD BYGG AS | 912108457 | FÆRDER |
| GJERMUNDSHAUG ANLEGG AS | 895711942 | ALVDAL |