 | SAU & SÅNT AS | 920913636 | KVINNHERAD |
| SAVO RØRLEGGERBEDRIFT OG BYGG AS | 926425706 | DRAMMEN |
| SAWI BYGG AS | 915789870 | BÆRUM |
| SB2 UTVIKLING AS | 991056157 | ALTA |
| SB ANLEGGSTJENESTER AS | 998642086 | ORKLAND |
| S B EIENDOMSUTVIKLING AS | 919708956 | SARPSBORG |
| SB ENTREPRENØR AS | 813190702 | SARPSBORG |
| SBG BYGGPROSJEKT AS | 974484986 | NORDRE LAND |
| S B PETTERSEN ELEKTRO AS | 915206557 | OSLO |
| SB-PRO AS | 916005083 | KRISTIANSUND |
| SB RØRSERVICE AS | 924555769 | LIER |
| SBS BYGG ENTREPRENØR AS | 825219412 | EIDSKOG |
| S.B.SYLWESTER BARTOSIK | 898206602 | ASKER |
| SCALA ARKITEKTER AS | 912818063 | OSLO |
| SCANCON AS | 997491068 | SARPSBORG |
| SCANDEC SYSTEMER AS | 935262844 | NORDRE FOLLO |
| SCANDICON BYGGETEKNIK | 971022779 | OSLO |
| SCANDIC SVEIS OG VVS AS | 919004746 | MOSS |
| SCAN HEIS AS | 858458382 | BERGEN |
| SCANMAST AS | 915115829 | BÆRUM |
| SCAN SURVEY AS | 850397252 | OSLO |
| SCAN VVS AS | 999136613 | SANDNES |
| SCHAU MASKIN AS | 927973820 | NES |
| SCHINDLER AS | 919876522 | VENNESLA |
| SCHJELDERUP ARKITEKTUR AS | 830070842 | STAVANGER |
| SCHJELDERUP TRONDAHL ARKITEKTER AS | 993847100 | LILLESAND |
| SCHJØLBERG & TOMBRE AS | 936816703 | HAMAR |
| SCHJØLL AS | 993909572 | VESTRE TOTEN |
| SCHNEIDER ELECTRIC NORGE AS | 916247389 | OSLO |
| SCHULT BETONG AS | 976111923 | MIDTRE GAULDAL |
| SCHWANITZ DEVELOPMENT AS | 997831454 | BÆRUM |
| SD BYGG OG VENTILASJON AS | 898073742 | INDRE ØSTFOLD |
| SDH BYGG MB | 931692496 | |
| SDK CONSULT AS | 916592477 | RÆLINGEN |
| SDN OPPMÅLING AS | 989384996 | LILLESTRØM |
| SD NORDICS AS | 930081698 | OSLO |
| SDV KLIMA AS | 887658072 | NORDRE FOLLO |
| SEABROKERS FUNDAMENTERING AS | 989580493 | STAVANGER |
| SE-ARKITEKTUR AS | 986536345 | BERGEN |
| SEAS SPJELKAVIK ELEKTRO AS | 980383946 | ÅLESUND |
| SEBB AS | 964419620 | SKJÅK |
| SEBO AS | 927678160 | ASKER |
| SEBY AS | 948829703 | LILLESTRØM |
| SECTECH AS | 993872636 | SKIEN |
| SEERUP AS | 950913061 | KLEPP |
| SEG ENTREPRENØR AS | 897012812 | FLÅ |
| SEGLEM PETTER EGIL | 970394575 | EIGERSUND |
| SEIERBYGG AS | 924379618 | EIDSVOLL |
| SEIERSTAD PELEMASKINER AS | 987580739 | BÆRUM |
| SEIM BYGG AS | 984330324 | ALVER |