 | SVENSEN MASKIN AS | 916484178 | LILLESTRØM |
| SVENSK TREFIBER AS | 920546455 | FROGN |
| SVENSSON SIVILARKITEKTER AS | 874541702 | KRISTIANSAND |
| SVERRE BAKKA MASKIN | 970587616 | NOTODDEN |
| SVERRE CASPERSEN AS | 881868652 | HALDEN |
| SVERRE FOSS BLIKKENSLAGERVERKSTED AS | 911781352 | HOLMESTRAND |
| SVERRE HAVIK AS | 956888719 | NAMSOS |
| SVERRE ISACHSEN ANLEGG & TRANSPORT AS | 986503781 | ØVRE EIKER |
| SVERRE KALLEKLEV AS | 920705596 | TYSVÆR |
| SVERRE PETTERSEN AS | 957861539 | ØRLAND |
| SVERRE ROALD AS | 984747039 | GISKE |
| SVERRE TENNEBØ RØR AS | 938358184 | KINN |
| SVERVERMOEN BAKKEHAUG AS | 984319398 | EIDSVOLL |
| SVEUM & SVEEN ELEKTRO AS | 912544559 | GJØVIK |
| SVIDAL ENTREPRENØR AS | 922561885 | KINN |
| SVIGGUM VVS | 991230130 | HOL |
| SVINGEN HÅNDVERK AS | 833836242 | HVALER |
| SVINØ ENTREPRENØR AS | 952320017 | ÅLESUND |
| SVINSTAD BYGG AS | 926696386 | LINDESNES |
| SVOLVÆR RØR AS | 989117548 | VÅGAN |
| SVORKDAL-OPØIEN BYGG AS | 912086135 | ORKLAND |
| SVVS AS | 993538590 | OSLO |
| SW BYGG AS | 919203129 | LILLESTRØM |
| SWECO ARCHITECTS AS | 894607262 | OSLO |
| SWECO NORGE AS | 967032271 | OSLO |
| SWETCH AS | 919039183 | OSLO |
| SYD ELEKTRO AS | 933812634 | KRISTIANSAND |
| SYDVEST ARKITEKTUR AS | 916029659 | KRISTIANSAND |
| SYKKYLVEN MASKIN AS | 998521424 | SYKKYLVEN |
| SYLJUÅSEN AS | 983469094 | GJØVIK |
| SYLLIÅSEN & AFSETH DRIFT AS | 923937250 | RINGSAKER |
| SYMRE ARKITEKTER AS | 931705199 | TRONDHEIM |
| SYSTEMAIR AS | 929387384 | STAVANGER |
| SYSTEMBLOKK AS | 913289951 | MIDT-TELEMARK |
| SYSTEMBYGG1 AS | 926861182 | INDRE ØSTFOLD |
| SYSTEMCO AS | 993489506 | KRISTIANSAND |
| SYSTEMPROSJEKT INNLANDET AS | 925899763 | VESTRE TOTEN |
| SYSTEM TAK AS | 928555550 | NORDRE FOLLO |
| SYVERTSEN TOTALBYGG AS | 935520223 | DRAMMEN |
| T-2 PROSJEKT AS | 880120522 | OSLO |
| T3 BYGG AS | 928619508 | KVINESDAL |
| TAD RØRSERVICE AS | 930077488 | MELHUS |
| TAG BYGG KOMPETANSE AS | 912843122 | BÆRUM |
| TAIAR ELECTRICAL ENGINEERING AS | 831629002 | OSLO |
| TAICO AS | 916030118 | TROMSØ |
| TAKLE/THØRUD ARKITEKTER AS | 913504577 | OSLO |
| TAKMESTERAN AS | 915313019 | VERDAL |
| TAKMESTEREN AS | 912177122 | LIER |
| TAKMONTASJE AS | 933855171 | SKIEN |
| TAK OG BESLAG AS | 929339746 | GJERDRUM |