 | 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 |
| RESELL & NICCA AS | 915448771 | OSLO |
| RESTAURERING & BYGG AS | 997234332 | NORDRE FOLLO |
| RETT BAD AS | 920650694 | STAVANGER |
| RETT BYGG AS | 998151783 | LILLESTRØM |
| RETT ENTREPRENØR AS | 925880388 | OSLO |
| RETTE RØR AS | 920772404 | SKIEN |
| RETT HJEM ARKITEKTER AS | 999638821 | TRONDHEIM |
| RETURA IR AS | 985711267 | LEVANGER |
| RETURA SOGN & FJORDANE AS | 985226482 | GLOPPEN |
| RETVEDT AS | 917722102 | RINGERIKE |
| REVER & DRAGE AS | 917324093 | OSLO |
| REVHEIM MUR OG HAGE AS | 915429947 | OSTERØY |
| REYRR AS | 825500162 | SANDNES |
| RFB AS | 925553956 | KRISTIANSAND |
| RF BYGGETEKNIKK AS | 928779319 | OSLO |
| RFG BETONG AS | 930537713 | NORD-FRON |
| RGB ENTREPRENØR AS | 932723697 | OSLO |