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| BM ANLEGG AS | 998824842 | VENNESLA |
| BMBA ENTREPRENØR AS | 980378640 | ALTA |
| BMDE AS | 997814436 | HOLMESTRAND |
| BME JOHNSEN AS | 998065011 | TROMSØ |
| BMF ENTREPRISE AS | 920317405 | LILLESTRØM |
| BMH BYGG AS | 917262640 | VOLDA |
| BM MASKIN AS | 988106593 | NES |
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| BMP DRIFT AS | 821576032 | LOM |
| BM RØRSERVICE AS | 822970052 | SULA |
| BM UTEMILJØ AS | 911799960 | MALVIK |
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| BO ANDREN NORGE AS | 967281247 | KARMØY |
| Boarch Arkitekter AS | 942937563 | BODØ |
| BO ARKITEKTER AS | 985696241 | BERGEN |
| BOASSON AS | 938309183 | BERGEN |
| BOB SNEKKERSERVICE AS | 931789023 | TRONDHEIM |
| BOBYGG JÆREN AS | 986394826 | HÅ |
| BØ BYGGTEAM AS | 989255371 | MIDT-TELEMARK |
| BØCON AS | 994968769 | SANDNES |
| BO DESIGN VEST AS | 990024200 | ØYGARDEN |
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| BODØ ELEKTRISKE AS | 915894259 | BODØ |
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| BOGER BYGG AS | 923241280 | RAKKESTAD |
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| BOH BYGG AS | 997947568 | KRISTIANSAND |
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