 | AF DECOM AS | 992097442 | OSLO |
| AF ENERGI AS | 983480535 | OSLO |
| AF GRUPPEN NORGE AS | 938333572 | OSLO |
| A FINSTAD CAD AS | 921156790 | STEINKJER |
| AFI VANN OG VARME AS | 912348431 | FREDRIKSTAD |
| AFRY CONSULT AS | 934948262 | SARPSBORG |
| AFRY NORWAY AS | 915229719 | OSLO |
| A. FURULUND ENTREPRENØR AS | 914521378 | ULLENSAKER |
| AGAIA AS | 942493894 | DRAMMEN |
| AGAVE STUDIO AS | 933498379 | NORDRE FOLLO |
| AGDE ARKITEKTUR AS | 924688815 | LYNGDAL |
| AGDENES BYGG & MONTASJE AS | 989843575 | ORKLAND |
| AGDER BETONG ENTREPRENØR AS | 920362877 | ARENDAL |
| AGDER BLIKK & FASADE AS | 919947152 | KRISTIANSAND |
| AGDERBYGG AS | 963520913 | KRISTIANSAND |
| AGDER BYGG OG BETONG AS | 929988906 | KRISTIANSAND |
| AGDER BYGGPROSJEKTERING AS | 831083212 | KRISTIANSAND |
| AGDER BYGGTJENESTER AS | 914383528 | LILLESAND |
| AGDER EL INSTALLASJON AS | 985170266 | GRIMSTAD |
| AGDER FLISSERVICE AS | 921285434 | GRIMSTAD |
| AGDER GULV OG FLIS AS | 917705542 | GRIMSTAD |
| AGDERPLAN AS | 921877722 | HAUGESUND |
| AGDER RØR AS | 981712471 | KRISTIANSAND |
| AGDER SPRINKLER AS | 971216247 | BIRKENES |
| AGDER STEIN & GRUNNARBEID AS | 897569582 | FROLAND |
| AGDER TAK AS | 994975749 | VENNESLA |
| AGDER TAKSTSENTER AS | 916127197 | KRISTIANSAND |
| AGDER VENTILASJON AS | 988222704 | KRISTIANSAND |
| AGDER VVS AS | 930363162 | KVINESDAL |
| ÅGE HAVERSTAD AS | 989063030 | NORD-FRON |
| ÅGE NILSEN AS | 980860825 | TROMSØ |
| ÅGEO AS | 930885509 | STEINKJER |
| ÅGE REINFJORD | 969264536 | SØMNA |
| AGERSBORG BYGG AS | 914831938 | FÆRDER |
| AGF VVS AS | 921169523 | ARENDAL |
| AGLEDAL MASKIN AS | 979951426 | VOSS |
| AGNALT & HOLMEN AS | 927291657 | SARPSBORG |
| AGNAR BERGO AS | 912723038 | OSLO |
| AGNES TAKSTOLFABRIKK AS | 922789398 | LARVIK |
| AGN RØR AS | 997264282 | GAUSDAL |
| AGRAFF ARKITEKTUR AS | 982787033 | TRONDHEIM |
| AGROLINK AS | 990046468 | SARPSBORG |
| AGRO & MILJØ AS | 990853339 | FREDRIKSTAD |
| AG-RØR AS | 919497076 | BÆRUM |
| AGS BYGG AS | 998736226 | OSLO |
| A. HANSEN GRUPPEN AS | 963544731 | OSLO |
| AH BYGG AUESTAD & HÅLAND AS | 974425246 | HÅ |
| AH BYGGSERVICE AS | 913803345 | NORDRE FOLLO |
| AHDA AS | 912396584 | GLOPPEN |
| A. HOKHOLT ARKITEKTER AS | 989388061 | OSLO |