| REGGESTAD BYGG AS | 990993610 | HOLMESTRAND |
| REGIEC BYGG AS | 911651033 | BÆRUM |
| REGO BYGG AS | 925704024 | GJERDRUM |
| REIANES MUR & FLIS AS | 989923013 | STRAND |
| REIBO RØR KETIL REITAN | 970326022 | MELHUS |
| REIDAR ANDERSBAKKEN AS | 985963908 | LOM |
| REIDAR EIE AS | 976035690 | STRAND |
| REIDAR MOEN ENTREPRENØRFORRETNING AS | 942681038 | ØVRE EIKER |
| REIDAR SKAGSETH AS | 880407562 | TROMSØ |
| REIDAR SKOGEN AS | 916721889 | SARPSBORG |
| REIDAR STOKKE AS | 943619506 | ÅLESUND |
| REIEL M FAGERLID | 970395652 | STAD |
| REIERSEN ENTREPRENØR AS | 974404702 | NORDRE FOLLO |
| REIERSGÅRD MASKIN | 966116544 | OSLO |
| REIGSTAD BYGG OG EIGEDOM AS | 982231345 | ALVER |
| REINERTSEN GRAVING OG UTEOMRÅDE AS | 930821209 | HÅ |
| REIPÅ KNUSERI AS | 831682442 | MELØY |
| REIS ANLEGG AS | 931983202 | LARVIK |
| REIS BYGG AS | 932618729 | LARVIK |
| REISETER INSTALLASJON AS | 976098307 | ULLENSVANG |
| REISTAD AS | 924691670 | DRAMMEN |
| REIS VVS AS | 925311103 | LARVIK |
| REITAN & STRØM AS | 996055663 | HITRA |
| REIULF RAMSTAD ARKITEKTER AS | 978690793 | OSLO |
| REJLERS AS | 995500167 | OSLO |
| REJLERS INDUSTRY AS | 937416407 | TØNSBERG |
| REKKJE STIUTVIKLING AS | 920958893 | SOGNDAL |
| REKKVERK SPESIALISTEN AS | 918318437 | ØYGARDEN |
| REKNES BYGGJEVARER LL | 915354424 | MASFJORDEN |
| REKONSTRUKT AS | 986736255 | HARAM |
| REKORD BYGG AS | 954306445 | VADSØ |
| REKSGÅRD BYGG AS | 914135265 | RINGSAKER |
| REKYL ELEKTRO AS | 929654986 | NORDREISA |
| R&E MASKIN AS | 827571652 | HOLMESTRAND |
| RE MASKIN AS | 982952875 | HOLMESTRAND |
| REMM RØRLEGGERBEDRIFT AS | 931313568 | LØRENSKOG |
| RENA MURSERVICE, JON INGE HØRSANDLIEN | 991017801 | ÅMOT |
| REN ARKITEKTUR AS | 940901162 | KRISTIANSAND |
| RENATE BJØRNSTI | 986223711 | HORTEN |
| RENATO GIACOMELLO MUR OG FLIS AS | 997281241 | NESBYEN |
| RENDALEN GRAVESERVICE AS | 911841487 | RENDALEN |
| REN KONSTRUKSJON AS | 932097419 | JEVNAKER |
| RENNEBU HYTTESERVICE AS | 991161244 | RENNEBU |
| RENOVAR AS | 995356791 | OSLO |
| REN RØROS EL-SERVICE AS | 819884412 | RØROS |
| REO BYGG AS | 980858138 | RINGERIKE |
| REPCON AS | 932104857 | HOLMESTRAND |
| REPPE BYGGTJENESTER AS | 999627714 | MIDTRE GAULDAL |
| REPPE VVS AS | 915448895 | FRØYA |
| REPSTAD ANLEGG AS | 915372201 | KRISTIANSAND |