 | BIRKELAND BYGG OG ANLEGG AS | 928909905 | BIRKENES |
| BIRKELAND ENTREPRENØRFORRETNING AS | 958848641 | GULEN |
| BIRKEN & CO AS | 988251437 | SANDNES |
| BISC AS | 914962048 | LIER |
| BI SERVICE AS | 914599911 | VESTRE TOTEN |
| BISLET RØR AS | 974400413 | OSLO |
| BISLET SNEKKER AS | 974380838 | NITTEDAL |
| BIT KONSEPT AS | 976937422 | ASKER |
| BITS ARKITEKT OG INGENIØR AS | 913079205 | TØNSBERG |
| BITUMARK BYGG AS | 818347642 | VINJE |
| BJARNE BERGHEIM AS | 924653175 | VESTRE SLIDRE |
| BJARNE LOFTHUS | 970295402 | TOKKE |
| BJARNE NESHEIM MASKIN AS | 991430075 | VINDAFJORD |
| BJARNE NORDTVEIT AS | 991438386 | VINDAFJORD |
| BJARNE ØSTERØY AS | 992777508 | LILLESAND |
| BJARTE LUND | 995595435 | SOGNDAL |
| BJB MASKIN AS | 973051687 | BERGEN |
| B & J BYGG AS | 924830565 | BODØ |
| BJELKELAGET AS | 932210886 | RANA |
| BJELLAND AS | 984560443 | KLEPP |
| BJELLAND BYGG | 995132648 | VINDAFJORD |
| BJELLA OG MEDGARD AS | 995184389 | ÅL |
| BJERCK ENTREPRENØR AS | 995076195 | KINN |
| BJERGABYGG AS | 979503172 | SANDNES |
| BJERKE BYGGESERVICE AS | 998209692 | NORDRE FOLLO |
| BJERKE LANDSKAP AS | 928995208 | RINGERIKE |
| BJERK ELEKTRO AS | 916175132 | VÅLER (ØSTFOLD) |
| BJERKE RØR AS | 918082476 | OSLO |
| BJERKESET BYGG AS | 911708191 | GJØVIK |
| BJERKE VENTILASJON AS | 986887768 | OSLO |
| BJERKLIND BYGG AS | 942528531 | OSLO |
| BJERKNES RØR & MASKIN | 931147196 | RAKKESTAD |
| BJERKREIM BYGG AS | 891327412 | BJERKREIM |
| BJERKREIM ENTREPRENØR AS | 926334743 | BJERKREIM |
| BJERKREIM & HANSEN AS | 930312347 | HAUGESUND |
| BJERKREIM TRELAST AS | 989080644 | BJERKREIM |
| BJERLAND BYGG AS | 930165549 | VENNESLA |
| BJH - ARKITEKTER AS | 997623207 | FÆRDER |
| BJ MILJØ AS | 918547363 | KRISTIANSAND |
| BJ MYDLAND AS | 989351397 | SOKNDAL |
| BJØLSEN RØRSERVICE AS | 929363442 | OSLO |
| BJØRBEKK & LINDHEIM AS | 848285722 | OSLO |
| BJORDAL BYGG AS | 918843124 | BERGEN |
| BJØRDAL MASKIN ANLEGG AS | 929178874 | VANYLVEN |
| BJORDAM AS | 934809769 | BAMBLE |
| BJØRGAN FJELLSPRENGNING AS | 922750203 | BRØNNØY |
| BJØRGEN MASKIN AS | 930821128 | STJØRDAL |
| BJØRG THORVIK HELGEN LANDSKAPSARKITEKT MNLA | 985322864 | OSLO |
| BJØRINGSØY MASKINSTASJON AS | 918274049 | SMØLA |
| BJØRKENG ANLEGGSDRIFT AS | 982083672 | MÅLSELV |