 | SKRETTING FLIS AS | 913806700 | SIRDAL |
| SKRIM BYGG AS | 993852589 | KONGSBERG |
| S. KRISTOFERSSON AS | 948103257 | SOGNDAL |
| SK RØR AS | 992536241 | LUNNER |
| SKRØVSETH GRAVING OG TRANSPORT AS | 929284054 | SURNADAL |
| SKUDE BYGG AS | 919372885 | KARMØY |
| SKUGGHEI BYGG AS | 998473691 | RANA |
| SKULLERUD OG SKARET BYGG AS | 930872253 | AURSKOG-HØLAND |
| SKURDAL BERNT | 969537559 | FROGN |
| SKURVE MASKIN AS | 999584012 | GJESDAL |
| SKUTLE BETONG AS | 979221592 | VOSS |
| SKUTLE ENTREPRENØR AS | 925160598 | VOSS |
| SKYER MASKIN AS | 997482107 | SKIEN |
| SKYTTERMOEN ANLEGG AS | 989991965 | HAMAR |
| SLAATTO RØR AS | 917111839 | SELJORD |
| SLA NORGE AS | 913255682 | OSLO |
| S LARSSEN INSTALLASJON AS | 975972046 | SENJA |
| SL BETONG AS | 915990053 | ASKØY |
| S&L BYGGSERVICE AS | 927474824 | ÅS |
| SL ENTREPRENØR AS | 828959042 | SKIEN |
| SLETTA BYGGELAG AS | 980407500 | SULA |
| SLETTEDAL TAKST OG EIENDOM AS | 915282199 | SANDEFJORD |
| SLETTEDAL VVS AS | 998467675 | TØNSBERG |
| SLETTEN ANLEGG OG TRANSPORT AS | 999292224 | DOVRE |
| SLETTEN ELEKTRO AS | 985727139 | BERGEN |
| SLETTO BYGG AS | 974448955 | GOL |
| SLIDRE BYGG & PROSJEKTERING AS | 979900783 | VESTRE SLIDRE |
| S. LILLESTRØM AS | 992138432 | ALVDAL |
| SLITESTERK AS | 920857523 | NÆRØYSUND |
| SL MASKIN AS | 989630520 | AURE |
| SL MEKANISKE AS | 987054913 | TIME |
| SLOTSVIK BIL OG MASKIN AS | 945278552 | ÅLESUND |
| SLS MONTASJE AS | 991462252 | OSLO |
| SL'S RØRSERVICE AS | 998839092 | OSLO |
| SL STENLEGGING AS | 888988912 | MOSS |
| SL VVS AS | 930885169 | HURDAL |
| SLYNGSTAD AAMLID ARKITEKTER AS | 971218908 | ÅLESUND |
| SMÅBÅTHAVNER AS | 982953235 | SØR-ODAL |
| SMÅDAHL AS | 880984292 | INDRE ØSTFOLD |
| SMÅGE DRIFT AS | 930307424 | HITRA |
| SMÅJOBB SERVICE AS | 921091095 | KLEPP |
| SMÅØIEN BYGG AS | 996694941 | MELHUS |
| SMA PROSJEKT AS | 989850385 | SARPSBORG |
| SMART BUILDING AS | 923242813 | ASKER |
| SMARTBYGG AS | 926542605 | BERGEN |
| SMART BYGGSERVICE VIKEN AS | 931864807 | HOLMESTRAND |
| SMARTCON AS | 920244548 | BERGEN |
| SMARTE HYTTER AS | 994609106 | NISSEDAL |
| SMART ELEKTRO AS | 915204007 | OSLO |
| SMART RØRLØSNINGER AS | 923686657 | ULLENSAKER |