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| STRUCTOR OSLO AS | 913455991 | OSLO |
| STRUCTOR TEKNISKE SYSTEMER AS | 918371680 | OSLO |
| STRUCTOR TRONDHEIM AS | 920901468 | TRONDHEIM |
| STRUCTOR VANN AS | 929286561 | OSLO |
| STRUCTOR VESTFOLD AS | 918816976 | SANDEFJORD |
| STRUKTURAS AS | 963175094 | PORSGRUNN |
| STRUTEK AS | 915649165 | BERGEN |
| STRYVO AS | 992808314 | STRYN |
| STRYVO - BISMO AS | 911553732 | SKJÅK |
| STS VAKTMESTERTJENESTER AS | 927249162 | FRØYA |
| STUBBAN INGENIØR AS | 928526267 | OSLO |
| STUBBERUD ANLEGG AS | 914811104 | RAKKESTAD |
| STUBSON AS | 926416995 | MELHUS |
| STUBSTAD BETONG AS | 927167913 | KRISTIANSAND |
| STUDIO GORILLA AS | 924520450 | OSLO |
| STUDIO H6 AS | 927700166 | OSLO |
| STUDIO HEIMAT AS | 925836982 | OSLO |
| STUDIO LON AS | 821845572 | OSLO |
| STUDIONSW AS | 941742653 | HAMAR |
| STUDIO OSLO LANDSKAPSARKITEKTER AS | 918152458 | OSLO |
| STUDIO TAVARE AS | 930077097 | OSLO |
| STUDIO TUVA AS | 933878732 | OSLO |
| STYRVOLL VVS Lars J Hellenes | 986076336 | LARVIK |
| SUBMET ENTREPRENØR AS | 922114137 | OSLO |
| SUBSHORE.NO AS | 912211843 | STORD |
| SULDAL HYTTEBYGG AS | 986193677 | SULDAL |
| SULDAL SERVICE AS | 821493412 | SULDAL |
| SULDAL VVS AS | 927117975 | SULDAL |
| SULKOWSKI RØR | 927853116 | SULA |
| SUND BYGG AS | 915897568 | ASKER |
| SUNDBY 'S RØRLEGGERBEDRIFT | 931443429 | BARDU |
| SUNDE HAGESERVICE AS | 938017549 | SOLA |
| SUNDET TRANSPORT & GRAVING AS | 892598762 | LARVIK |
| SUNDSHAMMARN AS | 997113454 | BØ (NORDLAND) |
| SUNDT & THOMASSEN AS | 932003031 | LIER |
| SUNDVOR MUR OG FLIS | 912810607 | BJERKREIM |
| SUNDVOR VVS AS | 983430643 | SANDNES |
| SUNNFJORD BYGG AS | 996968804 | SUNNFJORD |
| SUNNFJORD ELEKTRO AS | 995394405 | SUNNFJORD |
| SUNNFJORD GEO CENTER AS | 998899834 | ASKVOLL |
| SUNNFJORD INGENIØRTENESTE AS | 890279872 | SUNNFJORD |
| SUNNFJORD MASKIN AS | 992501693 | SUNNFJORD |
| SUNNFJORD RØR AS | 991639489 | SUNNFJORD |
| SUNNIVA AS | 976604598 | OSLO |
| SUNNMØRE BYGGSERVICE AS | 926673971 | ÅLESUND |
| SUNNMØRE MASKIN AS | 958594615 | ØRSTA |
| SUNNMØRE VENTILASJON AS | 882932222 | HERØY (MØRE OG ROMSDAL) |
| SUNN RØR AS | 997441885 | FJORD |
| SUPERBGULV AS | 918835369 | HUSTADVIKA |