 | GJØVIK OG OMEGN BOLIGBYGGELAG | 952971085 | GJØVIK |
| GJØVIK UTEMILJØ AS | 922673810 | GJØVIK |
| GJUL & RABBAN AS | 915836070 | ØRLAND |
| GK NORGE AS | 915892981 | OSLO |
| GK TAKST & EIENDOM AS | 993417106 | ULLENSAKER |
| GLAMSLAND MASKIN AS | 919146028 | LILLESAND |
| GLA'SNEKKERN AS | 918879242 | TRYSIL |
| GLASSBYGG AS | 991128999 | TRONDHEIM |
| GLASSEKSPERT GJESDAL KNARVIK AS | 987635800 | ALVER |
| GLASSMESTER 1 AS | 989596624 | LØRENSKOG |
| GLASSMESTER A. APPELBOM AS | 991323856 | TROMSØ |
| GLASSMESTER AUGUSTSON AS | 988655058 | LILLESTRØM |
| GLASSMESTER ERLING ERIKSEN AS | 989695061 | TROMSØ |
| GLASSMESTER ROLF BERGLUND AS | 894614382 | LILLESTRØM |
| GLASSMESTER SOLBJØR AS | 977337232 | KRISTIANSUND |
| GLASSMESTER THORESEN AS | 954769526 | SKIEN |
| GLASS SERVICE A Audestad | 968329162 | HITRA |
| GLASS-SERVICE SVENDSEN OG SØNN AS | 921527675 | OSLO |
| GL BYGG AS | 997335600 | HAMAR |
| GL-BYGG AS | 916350279 | OVERHALLA |
| GLENN ARVE FIDJE | 989983962 | LYNGDAL |
| GLENNE BYGG AS | 952439243 | HOLMESTRAND |
| GLENN NIKOLAYSEN AS | 992804513 | ENEBAKK |
| GLENN SYVERTSEN AS | 920509185 | GRAN |
| GL MULTISERVICE AS | 920375715 | KVINNHERAD |
| GLOMMA ELEKTRO AS | 995725843 | LILLESTRØM |
| GLØMMEN ENTREPRENØR AS | 926585991 | NAMSOS |
| GL PROSJEKTSERVICE AS | 979729332 | KARMØY |
| GLV ENTREPRENØR AS | 915669999 | SIGDAL |
| G MAST AS | 918539913 | ØRLAND |
| G M BYGG AS | 990027099 | DRAMMEN |
| GMC HVAC AS | 921956592 | STAVANGER |
| GM ENTREPRENØR HARSTAD AS | 997874471 | HARSTAD |
| GM GRAVESERVICE AS | 993776327 | MIDTRE GAULDAL |
| GN BYGG AS | 916611145 | VESTVÅGØY |
| G.NI ARKITEKTUR AS | 913235800 | OSLO |
| GNIST ARKITEKTER AS | 913128788 | BODØ |
| GNISTEN INSTALLASJON AS | 971230126 | OSLO |
| GNIST SAUNA AS | 933274799 | INDRE ØSTFOLD |
| GOBO DRIFT AS | 992247436 | ØYGARDEN |
| GODEJORD ENTREPRENØR AS | 998616921 | LILLESTRØM |
| GODE UTEROM AV ANNE-KARI HETTERUD | 929511387 | FÆRDER |
| GODØY BYGG AS | 976266366 | GISKE |
| GODØY MUR & ENTREPRENØR AS | 922236003 | BERGEN |
| GOHEIM TAKST OG BYGGCONSULT AS | 998559391 | SØMNA |
| G & O HELGESEN AS | 952202391 | BERGEN |
| GOLBERG AS | 965700196 | GOL |
| GOL GRAVE- OG BARKSERVICE AS | 929503295 | GOL |
| GOL KJØL OG FRYS AS | 989896423 | GOL |
| GOLTEN RØR OG MEKANISK VERKSTED | 970384049 | ØYGARDEN |