 | GRANITT ENTREPRENØR AS | 817766722 | BÆRUM |
| GRANLI RØR AS | 996704270 | MARKER |
| GRANNES VVS AS | 976717015 | NAMSOS |
| GRANUM STEINAR | 971082372 | LUNNER |
| GRANVIN MASKINSTASJON AS | 827942642 | VOSS |
| GRAN VVS AS | 985249962 | TØNSBERG |
| GRAPE ARCHITECTS AS | 915629814 | OSLO |
| GRAVDAL BYGG AS | 991188533 | SUNNFJORD |
| GRAVDAL HAGE OG ANLEGG AS | 980422003 | BERGEN |
| GRAVDAL VVS AS | 917362866 | LIER |
| GRAVEHJELPEN RUNAR WALTHER AS | 925926353 | SARPSBORG |
| GRAVEMASKIN 1 AS | 991341021 | TROMSØ |
| GRAVE OG PLANERING AS | 919392290 | GJERDRUM |
| GRAVE OG RIVETEKNIKK AS | 996410706 | ÅS |
| GRAVEPARTNER ALTA AS | 918503552 | ALTA |
| GRAVEPARTNER AS | 913305833 | HAMMERFEST |
| GRAVER1 AS | 999562639 | BÆRUM |
| GRAVER AS | 987295058 | TRONDHEIM |
| GRAVERE AS | 921835469 | LØRENSKOG |
| GRAVER'N INNLANDET AS | 935778387 | LILLEHAMMER |
| GRAVESERVICE AS | 965757260 | BÅTSFJORD |
| GRAVETEKNIKK AS | 986980210 | FROGN |
| GRAVING OG AVVIRKNING AS | 913298683 | ÅMLI |
| GRAVING OG SPRENGING AS | 999553125 | FÆRDER |
| GRAVINORD AS | 915593658 | NARVIK |
| GRAVITAS BYGG AS | 999531601 | ASKER |
| GRAVSETH BYGGSERVICE | 933300560 | TRONDHEIM |
| GRAVS GRAVESERVICE AS | 993898295 | INDRE ØSTFOLD |
| GRD MONTASJE AS | 913065336 | OSLO |
| GREÅKER GRAVING OG TRANSPORT AS | 992621605 | SARPSBORG |
| GREAT MUR AS | 922619735 | KRISTIANSAND |
| GREEN ROCK AS | 996760170 | BERGEN |
| GREFSEN VEDLIKEHOLD AS | 950902957 | ULLENSAKER |
| GRENLAND BYGG AS | 925367710 | SKIEN |
| GRENLAND GRAVESERVICE AS | 980452263 | SKIEN |
| GRENOR BYGG AS | 915331882 | NITTEDAL |
| GRENRØR AS | 935709601 | SKIEN |
| GREPA AS | 931085492 | SØR-AURDAL |
| GREVSTAD & TVEDT VVS AS | 920215742 | BERGEN |
| GRIDSETH RØR AS | 967318493 | SUNNDAL |
| GRIEG ARKITEKTER AS | 980649822 | BERGEN |
| GRIFF ARKITEKTUR AS | 987529490 | FREDRIKSTAD |
| GRIMNES & ANTONSEN FJELLSPRENGNING AS | 916212267 | KONGSBERG |
| GRINDAHEIM BYGG & RESTAURERING Bøye Kvale | 971236612 | VANG |
| GRINDAKER AS | 944389407 | OSLO |
| GRINDE AS SIVILARKITEKTER MNAL | 947487817 | OSLO |
| GRINDVIK BYGG AS | 917695822 | ÅLESUND |
| GRIPSGÅRD BYGG AS | 992299118 | ALVER |
| GRIT CONSULT AS | 930374075 | PORSGRUNN |
| GRØFT&LØFT AS | 934342291 | KRISTIANSAND |
| GRØNÅS BYGG | 929612671 | HAUGESUND |
| GRONG ELEKTRO AS | 979605625 | GRONG |
| GRONG GRAVESERVICE AS | 928455556 | GRONG |
| GRONG RØR AS | 913270207 | GRONG |
| GRØNN BYGGUTVIKLING AS | 912670694 | DRAMMEN |
| GRØNNE FORMER AS | 929644271 | LIER |
| GRØNNE MUR & FLIS AS | 919767642 | ASKER |
| GRØNN KRAFT MASKIN AS | 915280579 | ÅMLI |
| GRØNSBERG BYGG AS | 990770557 | KINN |
| GRØNSTVET OG HUSEBY AS | 913118391 | NORDRE FOLLO |
| GRØNT ANLEGG AS | 830163212 | TRONDHEIM |
| GRØNT BYGG AS | 923594132 | SKIEN |
| GRØNVOLD BYGG AS | 998641896 | HURDAL |
| GRORUD HÅNDTVERK-SERVICE AS | 976968263 | OSLO |
| GRORUD RØRLEGGER-SERVICE AS | 917768250 | OSLO |
| GRØSETH EIENDOM AS | 926170074 | TRONDHEIM |
| GRØTEIG AS | 916508816 | HORTEN |
| GRØTERUD BULLDOZERLAG ANLEGG AS | 970931813 | SIGDAL |
| GRØTERUDS BYGGSERVICE AS | 925549959 | MODUM |
| GRØTERUD VVS AS | 935860865 | SIGDAL |
| GROVEN OG KARLSEN AS | 988386421 | MIDT-TELEMARK |
| GROVFJORD BYGG AS | 896814192 | TJELDSUND |
| GROV FORSKALING AS | 918886257 | STORD |
| GRUBEN BLIKK AS | 961065429 | RANA |
| GRUDE BYGG AS | 979698968 | KLEPP |
| GRUNG ARKITEKTUR AS | 891407262 | BERGEN |
| GRUNG AS | 933182649 | OSLO |
| GRUNNARBEID ENTREPRENØR AS | 926819240 | TRONDHEIM |
| GRUNNARBEID VEST AS | 831905492 | OSTERØY |
| GRUNN & BETONG AS | 916058942 | BJØRNAFJORDEN |
| GRUNNBYGG AS | 981920074 | SARPSBORG |
| GRUNNFJELL AS | 929091558 | ASKVOLL |
| GRUNNLINK AS | 827469262 | FARSUND |
| GRUNNMUR AS | 990097305 | OSLO |
| GRUNNMURSPESIALISTEN AS | 989877801 | HAMAR |
| GRUNNPARTNER AS | 913868188 | OVERHALLA |
| GRUNN-SERVICE AS | 936131425 | TIME |
| GRUNN SOLID AS | 927151448 | KRISTIANSAND |
| GRUNNTEKNIKK AS | 925362441 | SANDEFJORD |
| GRUNNTEKNIKK MILJØ AS | 918283625 | NITTEDAL |
| GRYTHE MASKIN AS | 821127572 | HOLMESTRAND |
| GS ARKITEKTER AS | 916173075 | BÆRUM |
| G. S. BYGG AS | 990336857 | DRAMMEN |
| GS BYGG OG ANLEGG AS | 917636850 | HOLMESTRAND |
| GS BYGGTECH AS | 916642741 | MIDT-TELEMARK |
| GS-DRIFT AS | 933466728 | HJELMELAND |
| GS MASKIN AS | 918912320 | KRAGERØ |
| GS-MASKIN AS | 990555125 | KINN |
| GSN GRAVESERVICE NORD AS | 926055917 | KVÆNANGEN |
| GST BYGGMONTERING AS | 823672462 | ASKER |