 | RØSSNES MASKIN AS | 918852883 | FÆRDER |
| ROSS SNEKKERTJENESTER AS | 986994653 | MELHUS |
| RØSTAD ENTREPRENØR AS | 963199724 | VERDAL |
| RØTA AS | 988937509 | HOL |
| ROVIK BYGG AS | 930855480 | SANDNES |
| RØVIK MULTISERVICE AS | 921715595 | STJØRDAL |
| ROX MASKIN AS | 922877610 | ALTA |
| ROYAL RØRLEGGER SERVICE AS | 923803416 | OSLO |
| ROY KENNETH BYBERG | 970361030 | KLEPP |
| RØYNSTRAND ENTREPRENØR AS | 987020075 | ULLENSVANG |
| ROY PAULSEN | 976290690 | ARENDAL |
| RØYRLEGGJARSERVICE AS | 913238087 | LUSTER |
| RØYRVIK BYGG OG BETONG AS | 964088780 | VIK |
| RØYSETH MASKIN AS | 911715732 | SUNNFJORD |
| RØYSLAND BYGG AS | 995244721 | LILLESAND |
| ROY-YNGVE THOMASSEN AS | 890024432 | ALTA |
| RP BYGG & EIENDOM AS | 998823919 | TØNSBERG |
| R&R BYGG AS | 923712860 | VESTVÅGØY |
| R&R BYGGSERVICE AS | 925747297 | KARASJOK |
| R/S ANLEGGSGARTNERSERVICE AS | 922613400 | INDRE ØSTFOLD |
| RS BYGGETJENESTER AS | 927328755 | OSLO |
| RS-BYGG OG EIENDOM AS | 921177976 | TRONDHEIM |
| RS BYGG & REHABILITERING AS | 914793203 | ØYGARDEN |
| RSE ENTREPRENØR AS | 979973810 | FREDRIKSTAD |
| RS-EIENDOMSVERDI AS | 999631916 | HARSTAD |
| RS FORSKALING AS | 917723761 | MOSS |
| RS GULV AS | 927892510 | NAMSOS |
| RS MASKIN ROBERT STRANDHEIM | 925499560 | NORD-FRON |
| R SMEBY FORSKALING & BETONG AS | 994698516 | DRAMMEN |
| RSØ CONSULT AS | 931620029 | ØRSTA |
| RS RØR AS | 916594402 | RINGERIKE |
| RS RØR SERVICE AS | 923049827 | OSLO |
| R.S STÅL AS | 919026057 | ØRLAND |
| RS TØMRERSERVICE AS | 916162510 | INDRE ØSTFOLD |
| R TEIGE ELEKTRO AS | 971161523 | BERGEN |
| RTEK ENTREPRENØR AS | 927310899 | KARASJOK |
| RTH PROSJEKT AS | 997079760 | FREDRIKSTAD |
| RTMA AS | 831250402 | BÆRUM |
| RUBBHALL AS | 929363477 | KRØDSHERAD |
| RUD AS | 996516520 | ASKER |
| RUDI BYGG AS | 817181112 | SULA |
| RUDI & SKOGUM BYGG AS | 976376099 | SEL |
| RUD RØRLEGGER AS | 999326552 | LILLEHAMMER |
| RUFA TRADING AS | 992431326 | STAVANGER |
| RUGTVEDT BYGG AS | 924436328 | PORSGRUNN |
| RUNAA AS | 985727767 | SEL |
| RUNAR RYGH LANGUM | 981359240 | DRAMMEN |
| RUNE BORE | 996416666 | KLEPP |
| RUNE BREKKA AS | 911673169 | KRAGERØ |
| RUNE EKREN VVS | 992110066 | MELHUS |