| SEIERBYGG AS | 924379618 | EIDSVOLL |
| SEIERSTAD PELEMASKINER AS | 987580739 | BÆRUM |
| SEIM BYGG AS | 984330324 | ALVER |
| SEIM MASKIN AS | 994321102 | SANDEFJORD |
| SEKO ELEKTRO AS | 963825250 | LILLESTRØM |
| SELBAK BLIKKENSLAGERVERKSTED AS | 957492614 | FREDRIKSTAD |
| SELBAK RØR AS | 920173691 | FREDRIKSTAD |
| SELBERG ARKITEKTER AS | 924003073 | TRONDHEIM |
| SELBOE BYGG AS | 980378039 | SELBU |
| SELBU BOLIGSYSTEM AS | 976593626 | SELBU |
| SELBUHUS RØRLEGGERSERVICE AS | 993332720 | SELBU |
| SELDAL MASKIN AS | 999322255 | SANDNES |
| SELEBØ RØRSERVICE AS | 996629325 | SOKNDAL |
| SELFORS INSTALLASJON AS | 884698022 | SØR-VARANGER |
| SELØY UNDERVANNSSERVICE AS | 943488185 | HERØY (N.) |
| SELTOR AS | 915617344 | PORSGRUNN |
| SELVAAG PROSJEKT AS | 994533207 | OSLO |
| SELVEN BYGG AS | 918353453 | TRONDHEIM |
| SELVIK BYGGESERVICE AS | 994968173 | BERGEN |
| SEMB RØRSERVICE | 985711240 | LARVIK |
| SEMCON NORD AS | 978654037 | BODØ |
| SENJABYGG AS | 940051398 | SENJA |
| SENNESETH BETONG & ANLEGG AS | 915614574 | RINGERIKE |
| SENNIT AS | 929242785 | HARSTAD |
| SENTRONIK AS | 992905409 | KINN |
| SENTRUMBYGG AS | 983552382 | EIGERSUND |
| SENTRUM RØR AS | 951244899 | MOSS |
| SENTRUM RØR AS | 977369711 | VOLDA |
| S.E.P. CONSULT AS | 998362709 | ASKER |
| SEPTEMBER ARKITEKTER AS | 995801868 | DRAMMEN |
| SEQUOIA UTVIKLING AS | 923790756 | OSLO |
| SERIGSTAD MASKIN AS | 990720525 | TIME |
| SERVICEALLIANSEN ØST AS | 957246575 | OSLO |
| SERVICEALLIANSEN ØSTFOLD AS | 917763968 | HALDEN |
| SERVICEALLIANSEN SØR AS | 923560122 | SKIEN |
| SERVICEALLIANSEN VEST AS | 917488126 | BERGEN |
| SERVICE BN BYGG AS | 917840946 | TRONDHEIM |
| SERVICE ELEKTRIKEREN AS | 966291192 | BERGEN |
| SERVICE OG VEDLIKEHOLD AS | 994297147 | GJØVIK |
| SERVICERØRLEGGER JAN AS | 931316508 | BJØRNAFJORDEN |
| SERVICE-SNEKKER'N AS | 996035506 | SKAUN |
| SERVICETJENESTER ØST AS | 916022506 | ELVERUM |
| SES ELEKTRO AS | 925834157 | SOLA |
| SETER GRAVING OG UTEMILJØ AS | 924763345 | RÅDE |
| SETESDAL EIENDOM AS | 925327417 | EVJE OG HORNNES |
| SETRA DRIFT AS | 919885130 | SURNADAL |
| SETTEVIK ASFALT AS | 983347584 | BÆRUM |
| SEVE EHITUSE | 989115316 | OSLO |
| SEVERINSEN TAKST AS | 928934888 | KRISTIANSAND |
| S FARMENS MESTERBYGG AS | 946874221 | HAMAR |