 | BERGLI BYGG AS | 929861760 | GJØVIK |
| BERGLUND STÅL OG BLIKK AS | 998026008 | STANGE |
| BERGMANNS BYGG AS | 913709454 | KONGSBERG |
| BERG MASKIN AS | 998991382 | STEINKJER |
| BERG MASKIN & TRANSPORT AS | 919334487 | KINN |
| BERG OG SANDBOE ELEKTRO AS | 946667862 | OSLO |
| BERG & OLSEN AS | 987606584 | VERDAL |
| BERGQUIST MASKIN OG TRANSPORT AS | 967099201 | AURSKOG-HØLAND |
| BERGSAND AS | 920440339 | ØVRE EIKER |
| BERGS BYGGTJENESTER AS | 915910378 | RINGERIKE |
| BERGSETH AS | 977520126 | ASKER |
| BERGSKÅS OG RØNNINGEN MASKIN AS | 981521307 | MIDT-TELEMARK |
| BERGS MASKIN AS | 987328045 | BERGEN |
| BERGSPRENGNING AS | 997755855 | INDRE ØSTFOLD |
| BERGSTADEN BYGG AS | 998294282 | HOLTÅLEN |
| BERGSTADEN ELEKTRO AS | 975992136 | RØROS |
| BERGSTADEN VVS AS | 920446140 | HOLTÅLEN |
| BERGUM AS | 923126023 | NORD-FRON |
| BERGUM BYGG AS | 914407516 | FREDRIKSTAD |
| BERG VVS AS | 928506908 | ALTA |
| BERG & WIGUM AS | 929425677 | TRONDHEIM |
| BERKNES MASKIN AS | 951243639 | VOLDA |
| BERKON AS | 816349982 | ØYGARDEN |
| BERLAND BYGG AS | 966596252 | BERGEN |
| BERLAND ELEKTRO AS | 925536830 | ASKØY |
| BERLEVÅG RØR AS | 917797285 | BERLEVÅG |
| BERNHARD OLSEN AS | 959424616 | RANA |
| BERNT DAHL BYGGTJENESTER AS | 926820826 | NAMSOS |
| BERNT GUNDERSEN GRAVESERVICE AS | 981701275 | ÅSNES |
| BERNTSEN & BERNTSEN PROSJEKT AS | 875800582 | BERGEN |
| BERNTSEN BYGGSERVICE AS | 989810685 | TROMSØ |
| BERNTSEN MUR OG FLISESERVICE AS | 982145651 | ØYGARDEN |
| BERNTSEN PLAN & OPPMÅLING AS | 897819422 | RINGERIKE |
| BERRE ENTREPRENØR AS | 929992504 | NAMSOS |
| BERSTAD VÅPENØYA | 919251980 | INDRE FOSEN |
| BERTELSEN & GARPESTAD AS | 939015159 | EIGERSUND |
| BERTHELSEN BYGG AS | 925738964 | KRISTIANSAND |
| BERTHELSEN & VU AS | 915677908 | BERGEN |
| BERTHEUSSEN BLIKKENSLAGER AS | 990019398 | SØRREISA |
| BERTIL JOHNSEN AS | 976895215 | TANA |
| BESIKT AS | 987037024 | HARSTAD |
| BESI MUR OG GRAVING AS | 925293202 | NORDRE FOLLO |
| BESLAG OG BALKONGER AS | 980387968 | ASKØY |
| BESSEGGEN ARKITEKTER AS | 925252492 | OSLO |
| BEST-BYGG AS | 992548517 | GJEMNES |
| BEST-HALL OY | 984706235 | |
| BETA VVS AS | 924454946 | OSLO |
| BETO BYGG AS | 968403249 | OSLO |
| BETONGARBEID AS | 812016482 | OSLO |
| BETONG CONSULT AS | 943847878 | BERGEN |