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| BRE MEK AS | 967512982 | DRAMMEN |
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| BRENNE ENTREPRENØR AS | 994315404 | SYKKYLVEN |
| BREVIK AS | 916721153 | LIER |
| BREVIK BYGG | 891792042 | ORKLAND |
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| BRIGHT RÅDGIVENDE INGENIØRER BYGG AS | 881208792 | SARPSBORG |
| BRIGHT RÅDGIVENDE INGENIØRER ELEKTRO AS | 985712808 | SARPSBORG |
| BRIGHT RÅDGIVENDE INGENIØRER VVS AS | 987001860 | DRAMMEN |
| BRIIS ARKITEKTUR AS | 927876175 | BÆRUM |
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| BR MASKIN AS | 919111569 | ØYGARDEN |
| BR. NILSEN BYGGMESTERFIRMA AS | 926393529 | BAMBLE |
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| Brødrene Alseth A/S | 919908254 | TINN |
| BRØDRENE BAKK AS | 948073579 | AURE |
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| Brødrene Dahl A/S | 945757280 | OSLO |
| BRØDRENE DOKKEN AS | 898484262 | SØR-AURDAL |
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| BRØDRENE FRIESTAD AS | 976102231 | TIME |
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| BRØDRENE HAUGSBØ innehaver Ander Haugsbø | 977198682 | SUNNFJORD |
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| BRØDRENE KILLI AS | 981958586 | HARSTAD |
| BRØDRENE LARSEN VVS AS | 982004217 | NORDRE FOLLO |