 | RHK AS | 929787544 | FREDRIKSTAD |
| RH KVALITETSBYGG AS | 924701757 | LILLEHAMMER |
| RIBA RÅDGIVENDE INGENIØRER AS | 979886381 | OSLO |
| RIBE ENTREPRENØR AS | 932332817 | LILLESAND |
| RIB INORD AS | 992320885 | ALTA |
| RIB KONSULT AS | 827660302 | DRAMMEN |
| RICHARD FOSSUM | 926605860 | NORDRE LAND |
| RIEBER PROSJEKT AS | 911678462 | ASKER |
| RIFORM AS | 915101836 | SANDNES |
| RIFT ARKITEKTUR AS | 927485699 | OSLO |
| RIGEO AS | 921836821 | BÆRUM |
| RIIK AS | 928037592 | SØR-VARANGER |
| RIIS BYGG ENTREPRENØR AS | 988400106 | LILLESTRØM |
| RIIS BYGG TRØNDELAG AS | 930700312 | TRONDHEIM |
| RIIS EIENDOM AS | 937757964 | TRONDHEIM |
| RIIS ELEKTRO AS | 967907103 | HALDEN |
| RIIS GLASS OG FASADE AS | 969047780 | TRONDHEIM |
| RIIS-RØNNOW AS | 917676003 | OSLO |
| RIKELEKTRO AS | 991320164 | HALDEN |
| RIKSHEIM CONSULTING AS | 960186516 | ÅLESUND |
| RIKSTAD GRØNTANLEGG AS | 929475712 | TØNSBERG |
| RIKSVOLD AS | 990518475 | VERDAL |
| RINDAL MUR OG BETONG AS | 920801226 | RINDAL |
| RINDALSHYTTER AS | 984057091 | RINDAL |
| RINDALS-TRE AS | 984136358 | RINDAL |
| RINGBO BBL | 948321475 | RINGERIKE |
| RINGEN RØRSERVICE AS | 920678564 | OSLO |
| RINGERIKE ANLEGGSSERVICE AS | 980502767 | RINGERIKE |
| RINGERIKE VVS AS | 931643045 | RINGERIKE |
| RING FORSKALING AS | 827156582 | RINGERIKE |
| RINGJORD ELEKTRO AS | 925573779 | TROMSØ |
| RINGLI BYGG AS | 825542612 | ØYSTRE SLIDRE |
| RINGSAKER ELEKTRO AS | 911948745 | RINGSAKER |
| RINGSAKER VEGG- OG TAKELEMENTER AS | 983823920 | RINGSAKER |
| RINGSIDE RØRLEGGERBEDRIFT AS | 915407692 | OSLO |
| RINGSTAD BYGG AS | 982984947 | NES |
| RINGVOLL VVS OG VARMEPUMPETEKNISK AS | 996936333 | RÅDE |
| RINOR AS | 930774170 | RANA |
| RIPO FABRIKA AS | 912878465 | OSLO |
| RISA AS | 980404129 | HÅ |
| RISANGER & SØNN AS | 982146011 | HAUGESUND |
| RISDAL AS | 913855728 | NORD-FRON |
| RISKA SVEIS AS | 933767027 | SANDNES |
| RISOLVE AS | 997667174 | ELVERUM |
| RISØR HEIS OG ELEKTROSERVICE AS | 994272683 | RISØR |
| RISØY BYGG AS | 888106332 | ØYGARDEN |
| RISSA KRAFTLAG SA | 915420400 | INDRE FOSEN |
| RIVAS BYGG AS | 933089975 | TRONDHEIM |
| RIVCO AS | 982990963 | KRISTIANSAND |
| RIVENES AS | 915428940 | BERGEN |