 | RUNE'S MASKIN AS | 889765852 | TYSNES |
| RUNE TALBERG RØRLEGGER AS | 916715080 | SARPSBORG |
| RUNE VAADAN AS | 992815604 | TRONDHEIM |
| RUNE W. JOHANSEN BYGNINGSFIRMA AS | 987988584 | FÆRDER |
| RUNO AS | 984754035 | NES |
| RUPRO AS | 928891275 | ORKLAND |
| RUSÅNES FABRIKKER AS | 928759393 | SALTDAL |
| RUSTAD & ROSENBERG MASKIN AS | 922558477 | HAMAR |
| RUSTUGUSETRA AS | 918147616 | NORD-FRON |
| RUTA ENTREPRENØR AS | 983830196 | TRONDHEIM |
| 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 |
| RYENG ANLEGG AS | 971215542 | STORFJORD |
| RYENS RØRSERVICE AS | 919468637 | SARPSBORG |
| RYEN VVS AS | 911910292 | OSLO |
| RYFYLKE BETONGSERVICE AS | 915865054 | STAVANGER |
| RYFYLKE ELEKTRISKE AS | 962927033 | STRAND |
| RYFYLKE ELEKTRO AS | 987814136 | SAUDA |
| RYFYLKE FORSKALING AS | 895695092 | STRAND |
| RYGEHUS BYGGFORNYELSE AS | 918444416 | KLEPP |
| RYGER BYGG AS | 930311316 | STAVANGER |
| RYGER ELEKTRO AS | 991471898 | STRAND |
| RYGGE RØRLEGGERSERVICE AS | 913064631 | MOSS |
| RYGG UGLUM BYGG OG BETONG AS | 916563108 | SOGNDAL |
| S2 BYGG AS | 998915805 | HUSTADVIKA |
| SAAHA AS | 911721856 | OSLO |
| S.A.B.-BYGG AS | 986387358 | ULLENSAKER |
| SA-BYGG AS | 987216174 | KRAGERØ |
| SÆHLIE AS | 996236730 | HAMAR |
| SÆLE AS | 971155841 | SUNNFJORD |
| SÆTERDAL ELEKTRO AS | 982396220 | VAKSDAL |
| SÆTERØY BYGG AS | 915292771 | KRISTIANSUND |
| SÆTERSTØL BYGG AS | 815609662 | BERGEN |
| SÆTHER ELEKTRISKE AS | 915243398 | LILLESTRØM |
| SÆTHER ELEKTROKONSULT AS | 998746892 | GJERDRUM |
| SÆTHER KRISTIAN HOEL | 969145626 | ÅS |
| SÆTRE BYGGMONTERING AS | 917340781 | NOTODDEN |
| SÆTREN AS | 936092497 | KINN |
| SÆTREVIK BYGGSERVICE AS | 920877885 | STORD |
| 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 |
| SAGENES ENTREPRENØR AS | 913719859 | STORD |
| SAGSTUEN GLASS AS | 994114751 | GJØVIK |