 | GANN TRE AS | 979572034 | HÅ |
| GARBERG BYGG AS | 932215829 | TRONDHEIM |
| GARDA ROAD SAFETY AS | 992092742 | DRAMMEN |
| GÅRDEN RØRLEGGERSERVICE AS | 952677004 | BERGEN |
| GARDERMOEN ELEKTRO AS | 991277943 | ULLENSAKER |
| GARD MASKIN AS | 979458355 | STAVANGER |
| GAREN MASKIN AS | 989588621 | EIDFJORD |
| G ARKITEKTER AS | 990735581 | STAVANGER |
| GARTHE GRØNTANLEGG AS | 918831223 | RISØR |
| GARTNERHAGEN AS | 918583262 | OSLO |
| GÅSBAKK & SØNNER AS | 952140329 | LIERNE |
| GASS OG RØRSERVICE AS | 914828953 | PORSGRUNN |
| GAST ENTREPRENØR AS | 987627484 | GRAN |
| GAUKEN BYGG AS | 930775762 | SANDNES |
| GAULDAL BETONG AS | 918500464 | MIDTRE GAULDAL |
| GAULDAL BYGG AS | 918004726 | MELHUS |
| GAULDAL GRAVETJENESTER AS | 930216631 | MELHUS |
| GAUNDAL BYGGSERVICE AS | 922852766 | STEINKJER |
| GAUSTAD MASKIN Geir Henning Gaustad | 981439007 | BERGEN |
| GAUTESTAD TAKST OG KONSULT AS | 999329543 | EVJE OG HORNNES |
| GBA BYGG AS | 915538932 | DRAMMEN |
| GB BYGG AS | 994509195 | GJESDAL |
| GBE BYGG AS | 927174146 | OSLO |
| GB-ENTREPRENØR AS | 979677685 | OVERHALLA |
| GB.RØR AS | 998009847 | EIDSVOLL |
| GB RØRLEGGERMESTER AS | 989339060 | GRAN |
| GBS ENTREPRENØR AS | 976926250 | KVAM |
| G-B SERVICE AS | 822214002 | TRONDHEIM |
| GBS PRODUKTER AS | 982328756 | ASKER |
| GB STORD AS | 985057907 | STORD |
| G-BYGG AS | 951360759 | HEIM |
| G CONSULT Vidar Gunnulfsen | 981911652 | SKIEN |
| GEBREMARIAM | 927653885 | DRAMMEN |
| GECOM AS | 937227558 | HORTEN |
| G & E ENTREPRENØR AS | 990427208 | INDERØY |
| GEFO RØRSERVICE AS | 890167772 | BERGEN |
| GEIER ERIKSEN | 988666211 | HOLMESTRAND |
| GEILO SNEKKERLAG AS | 995152088 | HOL |
| GEIR AURDAL | 977164338 | RANDABERG |
| GEIR BETONG AS | 833425102 | KRISTIANSAND |
| GEIR EGIL STRØMMEN | 969391317 | VESTRE SLIDRE |
| GEIR FLATNES AS | 915305148 | SVEIO |
| GEIR HENNING SKARET AS | 928944751 | SØR-AURDAL |
| GEIR J. DAHLE AS | 998006414 | OPPDAL |
| GEIR PEDERSEN | 984984480 | ASKER |
| GEIR SANDAL AS | 978620779 | KINN |
| GEIR SVENDSEN ENTREPRENØR AS | 976160835 | ALTA |
| GEITHUS VVS AS | 980897052 | VIK |
| GELIN MASKIN AS | 911711516 | ASKØY |
| GELTOR MASKIN-BYGG & UTLEIE AS | 925655023 | KINN |