 | RAJ ELEKTRO AS | 925414212 | RÅDE |
| RAK ARKITEKTUR AS | 912077640 | OSLO |
| RAKKESTAD TRE OG BETONG AS | 925118729 | RAKKESTAD |
| RAKON BYGG AS | 976261593 | TRONDHEIM |
| RÅK UTVIKLING AS | 928964957 | VESTVÅGØY |
| RAM ARKITEKTUR AS | 986771735 | LILLEHAMMER |
| RAMBØLL NORGE AS | 915251293 | OSLO |
| RAM BYGGELEDELSE AS | 913787374 | ÅLESUND |
| RAM ENTREPRENØR AS | 913787285 | ÅLESUND |
| RAMIRENT AS | 984820011 | LILLESTRØM |
| RAMIZ SAFDAR AS | 923750886 | ÅS |
| RAMLOS AS | 915285988 | OS (INNLANDET) |
| RAMM CONSULT AS | 913205634 | BERGEN |
| RAMP AS | 992869224 | STAVANGER |
| RAMSDAL MASKIN AS | 998819105 | KINN |
| RAMSFJELL ARKITEKTER AS | 988464767 | BÆRUM |
| RAMSØY AS | 979125321 | LILLEHAMMER |
| RAMSTAD RØRLEGGERSERVICE AS | 930949191 | NORDRE FOLLO |
| RAMUDDEN NORGE AS | 913798317 | ÅS |
| RANA ENTREPRENØR AS | 950271728 | RANA |
| RANAHYTTA AS | 925269506 | RANA |
| RANA KOMMUNE TEKNISKE TJENESTER | 974791420 | RANA |
| RANDEM & HÜBERT AS | 989653245 | OSLO |
| RANDERS TEGL NORGE AS | 914878977 | TØNSBERG |
| RANDØY MASKIN AS | 924404914 | HJELMELAND |
| RANES PUKK AS | 914297877 | SURNADAL |
| RANHEIM BYGGPARTNER AS | 913164903 | TRONDHEIM |
| R: ARKITEKTUR AS | 890767532 | KRISTIANSAND |
| RASCH RØRLEGGER | 989433830 | ELVERUM |
| RASHIDYAN OSLO RØR | 921578210 | OSLO |
| RASJONELL VVS AS | 924205075 | MOSS |
| RASMUSSEN ANLEGG AS | 977202795 | FLAKSTAD |
| RASMUSSEN ELEKTRO AS | 921625790 | SOLA |
| RASMUSSEN ERIK | 969956845 | VESTBY |
| RASMUSSEN MESTERBYGG AS | 986440046 | BÆRUM |
| Rasmussen & Skjelbred A/S | 946434086 | SANDEFJORD |
| RATIO ARKITEKTER AS | 962959407 | OSLO |
| RAUFOSS ELEKTRO AS | 911950707 | VESTRE TOTEN |
| RAUFOSS GRAVESERVICE AS | 999151914 | VESTRE TOTEN |
| RAUFOSS TAK OG BLIKK AS | 983569919 | VESTRE TOTEN |
| RAUGSTAD ARKITEKTUR AS | 998799228 | SANDNES |
| RAULAND BYGGTJENESTE AS | 912451291 | VINJE |
| RAULAND MASKIN AS | 988416053 | VINJE |
| RAUMA BYGGSERVICE AS | 987659106 | RAUMA |
| RAVI RÅDGIVNING AS | 995705044 | HÅ |
| RAVNANGER HUS AS | 885779522 | ASKØY |
| RAVNDAL STÅLBYGG AS | 914414342 | GJESDAL |
| RAYMOND ARONSEN TRANSPORT & GRAVING AS | 811998222 | FROLAND |
| RAYMOND'S RØRSERVICE AS | 911966719 | BODØ |
| RAZMAS BYGG AS | 917747482 | DRAMMEN |