 | AGATO EIENDOMSDRIFT AS | 925367710 | SKIEN |
| AGDE ARKITEKTUR AS | 924688815 | LYNGDAL |
| AGDENES BYGG & MONTASJE AS | 989843575 | ORKLAND |
| AGDER ANLEGGSSERVICE AS | 992755148 | FLEKKEFJORD |
| AGDER BETONG ENTREPRENØR AS | 920362877 | ARENDAL |
| AGDER BLIKKENSLAGER SERVICE AS | 919074221 | KRISTIANSAND |
| 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 | KRISTIANSAND |
| AGDER STEIN & GRUNNARBEID AS | 897569582 | FROLAND |
| 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 |
| 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 |
| AHSCO ENTREPRENØR AS | 919738650 | NORD-FRON |
| AHS MASKIN AS | 913162544 | HITRA |
| A-H-TJENESTER AS | 928939863 | GRONG |
| AH TØMRING AS | 825876642 | ASKER |
| AIBEL AS | 984735227 | SANDNES |
| AIG BYGG AS | 914534925 | KRAGERØ |
| AIK VVS AS | 991618953 | LILLESTRØM |
| AIM DESIGN AS | 968140329 | OSLO |
| AION BYGG AS | 830338802 | ASKER |