 | RÆDERGÅRD ENTREPRENØR AS | 917570884 | ØRLAND |
| RAFOS ENTREPRENØR AS | 897676842 | RINGSAKER |
| RAFTEVOLD ARVID | 970405615 | VOLDA |
| RAGNAR AAS AS | 945530006 | EVJE OG HORNNES |
| RAGNAR BOVIM ARKITEKT MNAL | 891965702 | OSLO |
| RAGNAR KONSTAD | 969999811 | MELHUS |
| RAGNAR SUNDET | 996997847 | FROSTA |
| RAGNAR SVENSEN AS | 932241536 | STAVANGER |
| RÅHOLT BYGG OG EIENDOMSSERVICE AS | 916554036 | EIDSVOLL |
| RAIDON AS | 916165536 | LILLESTRØM |
| RAIL INFRASTRUCTURE AS | 918052194 | OSLO |
| 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 |
| 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 |