 | RS MASKIN ROBERT STRANDHEIM | 925499560 | NORD-FRON |
| R SMEBY FORSKALING & BETONG AS | 994698516 | DRAMMEN |
| RSM FASADE AS | 913009681 | SANDNES |
| RSØ CONSULT AS | 931620029 | ØRSTA |
| RS RØR AS | 916594402 | RINGERIKE |
| RST FYR OG FLIS AS | 936347428 | STAVANGER |
| RS TØMRERSERVICE AS | 916162510 | INDRE ØSTFOLD |
| RTEK ENTREPRENØR AS | 927310899 | KARASJOK |
| RT ENTREPRENØRSERVICE AS | 918768262 | RISØR |
| 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 |
| RUNE BREKKA AS | 911673169 | KRAGERØ |
| RUNE EKREN VVS | 992110066 | MELHUS |
| RUNE JOHANNESSEN AS | 980840956 | BERGEN |
| RUNE NORDAHL ENTREPRENØRFORRETNING AS | 962071228 | BERGEN |
| RUNE-NYGÅRD AS | 918924132 | SKIEN |
| RUNE ROMSDAL AS | 923485104 | NORDRE FOLLO |
| RUNE SANDVIK AS | 980011305 | KINN |
| RUNE'S MASKIN AS | 889765852 | TYSNES |
| RUNE TALBERG RØRLEGGER AS | 916715080 | SARPSBORG |
| RUNE VAADAN AS | 992815604 | TRONDHEIM |
| RUNE W. JOHANSEN BYGNINGSFIRMA AS | 987988584 | FÆRDER |
| RUPRO AS | 928891275 | ORKLAND |
| RUSÅNES FABRIKKER AS | 928759393 | SALTDAL |
| RUSTAD BYGG AS | 929343085 | HORTEN |
| RUSTUGUSETRA AS | 918147616 | NORD-FRON |
| RUTA ENTREPRENØR AS | 983830196 | TRONDHEIM |
| RUTLEDAL ELEKTRO AS | 932195429 | BERGEN |
| RUTLE VVS AS | 975963764 | ULLENSVANG |
| RUUD ENTREPRENØR 1 AS | 984548788 | OSLO |
| RVS AS | 976878949 | ØVRE EIKER |
| RVS EIENDOMSDRIFT AS | 868914432 | MOSS |
| RW GRAVESERVICE AS | 929221729 | BÆRUM |
| RYCON AS | 986600825 | STRAND |
| RYDING MASKIN AS | 932315475 | NANNESTAD |
| RYENG ANLEGG AS | 971215542 | STORFJORD |
| RYENS RØRSERVICE AS | 919468637 | SARPSBORG |
| RYENS RØRSERVICE SARPSBORG AS | 935160014 | SARPSBORG |
| RYEN VVS AS | 911910292 | OSLO |
| RYE 'S GRAVESERVICE | 935559367 | TRONDHEIM |
| RYFYLKE BETONGSERVICE AS | 915865054 | STAVANGER |
| RYFYLKE ELEKTRISKE AS | 962927033 | STRAND |
| RYFYLKE ELEKTRO AS | 987814136 | SAUDA |
| RYFYLKE FORSKALING AS | 895695092 | STRAND |
| RYGEHUS AS | 912586944 | KLEPP |
| RYGEHUS BYGGFORNYELSE AS | 918444416 | KLEPP |
| RYGER BYGG AS | 930311316 | STAVANGER |
| RYGER ELEKTRO AS | 991471898 | STRAND |
| RYGGE EIENDOMSERVICE AS | 916610033 | MOSS |
| RYGGE RØRLEGGERSERVICE AS | 913064631 | MOSS |
| RYGG UGLUM BYGG OG BETONG AS | 916563108 | SOGNDAL |
| RYGJA TAKST AS | 934146239 | SANDNES |
| RYTAKST AS | 935486130 | STAVANGER |
| S2 BYGG AS | 998915805 | HUSTADVIKA |
| SAAHA AS | 911721856 | OSLO |
| SÆTHER ELEKTRISKE AS | 915243398 | LILLESTRØM |
| SÆTHER ELEKTRO AS | 933852121 | GJERDRUM |
| SÆTHER KRISTIAN HOEL | 969145626 | ÅS |
| SÆTRE BYGGMONTERING AS | 917340781 | NOTODDEN |
| SÆTREN AS | 936092497 | KINN |
| SÆVIK BYGG AS | 997723740 | LYNGDAL |
| SAFE CONTROL ENGINEERING AS | 915479464 | TVEDESTRAND |
| SAFEZONE AS | 927412101 | TRONDHEIM |
| SAGA BYGG AS | 994440667 | TYSVÆR |
| SAG & BYGG AS | 989822950 | BØMLO |
| SAGEN BYGG AS | 961802830 | STAVANGER |
| SAGENES ENTREPRENØR AS | 913719859 | STORD |
| SAGSTUEN GLASS AS | 994114751 | GJØVIK |
| SAKARIAS NESHEIM ANLEGG AS | 928973344 | VINDAFJORD |
| SALHUS VVS AS | 923177361 | BERGEN |
| SALINGSTRAND BYGGSENTER AS | 985915989 | PORSGRUNN |
| SALT ARKITEKTER AS | 918073574 | KINN |
| SALTDAL RØR OG ENTREPRENØR AS | 874354902 | SALTDAL |
| SALTDALSBYGG NORD AS | 897503492 | HARSTAD |
| SALTDALSHYTTA BVT AS | 924921862 | MODUM |
| SALTEN ENTREPRENØR & EIENDOM AS | 926325078 | SØRFOLD |
| SALTEX AS | 928176703 | JEVNAKER |
| SALVESEN BLIKK OG VENTILASJON AS | 927971291 | KRISTIANSAND |
| SALVESEN BYGG & INNREDNING AS | 926800566 | KRISTIANSAND |
| SAM BYGG AS | 935818966 | ALTA |
| SAMDAL BYGG AS | 997103068 | MELHUS |
| SAMDAL RØR AS | 945889314 | BJØRNAFJORDEN |
| SAMSETH ANLEGG AS | 992087161 | RAUMA |
| SAMSETH GRAVING OG GEOMATIKK | 928836134 | RAUMA |
| SAMUELSEN MASKIN AS | 935983231 | HUSTADVIKA |
| SAMUELSEN.SAMUELSEN AS | 920610617 | STAVANGER |
| SANA BYGG AS | 968708775 | OSLO |
| SANDAL BYGG AS | 816998662 | BERGEN |
| SANDÅS FJELLSPRENGING & GRAVING AS | 998619483 | ENEBAKK |
| SANDBÆK BYGG DA | 992170204 | RINGSAKER |
| SANDBÆK MASKIN AS | 912212351 | ÅSNES |
| SANDBAKK & PETTERSEN ARKITEKTER AS | 966367474 | ÅLESUND |