 | BAUS ARKITEKTUR AS | 990180466 | NESBYEN |
| BAUTA AS | 919593598 | NORD-FRON |
| BAUTA BYGG AS | 930045020 | VESTNES |
| B+B ARKITEKTER AS | 996407837 | BERGEN |
| BB BYGG STATHELLE AS | 994486195 | BAMBLE |
| BBE CONSULTING AS | 995098431 | STRAND |
| B&B ENTREPRENØR AS | 982984688 | MIDTRE GAULDAL |
| BBE TAKST AS | 978658466 | SANDNES |
| BB MASKINDRIFT AS | 813366282 | ELVERUM |
| B CONSULT AS | 948892316 | OSLO |
| BDB ING B DAMBERG BYGGESAKSANSVARLIG AS | 979582471 | BAMBLE |
| BD HUSSERVICE AS | 995676567 | FREDRIKSTAD |
| BDM ELEKTRO AS | 886658702 | LIER |
| BD RØRSERVICE AS | 929651154 | LØRENSKOG |
| BD TAK AS | 934053931 | DRAMMEN |
| BE-AR AS | 929945298 | OSLO |
| BEB DESIGN AS | 915499066 | TRONDHEIM |
| BECKMANN BYGG AS | 990881308 | OSLO |
| BECKMANN BYGGKONSULT AS | 933882535 | HORTEN |
| BECK OG BIE BYGG AS | 917876045 | DRAMMEN |
| BE-CON AS | 998468116 | KRISTIANSAND |
| BEDROCK AS | 935362784 | OPPDAL |
| BE ELEKTRO AS | 880859862 | OSLO |
| BEERENBERG INDUSTRI AS | 974472902 | SKIEN |
| BEHA BYGG AS | 929231279 | ULLENSAKER |
| BEITOSTØLEN ANLEGG AS | 989233211 | ØYSTRE SLIDRE |
| BEITOSTØLEN MASKIN OG TRANSPORT AS | 985341737 | ØYSTRE SLIDRE |
| BEITSTAD MASKIN AS | 998238986 | STEINKJER |
| BEKKESTUA RØRLEGGERBEDRIFT AS | 911702959 | BÆRUM |
| BEKKEVOLD BYGG OG BAD AS | 993747882 | LØTEN |
| BEKKEVOLD DRIFT AS | 912154351 | DRAMMEN |
| BELER AS | 920017363 | SURNADAL |
| BELIS DESIGN OG ENTREPRENØR AS | 930797472 | ÅLESUND |
| BELLAND NATURSTEIN AS | 927944618 | LYNGDAL |
| BELLING MASKIN AS | 913588304 | INDRE FOSEN |
| BELOTECH Ing B Lorentsen | 971235012 | IBESTAD |
| BELSTROJ EIENDOM AS | 824511632 | ASKER |
| BELSVIK ELEKTRO AS | 912475034 | HEIM |
| BENDIKSEN ENTREPRENØR AS | 998137020 | BRØNNØY |
| BENKI AS | 914043921 | LØRENSKOG |
| BENT AASLI AS | 999313450 | ENEBAKK |
| BENT VIKØREN AS | 918014675 | SOGNDAL |
| B&E PARTNER AS | 982331803 | HERØY (MØRE OG ROMSDAL) |
| BERDAL RØYR OG SANITÆR AS | 998547032 | VIK |
| BEREKO AS | 926019139 | BERGEN |
| BERGAAS VVS AS | 917273774 | DRAMMEN |
| BERGAN BYGG AS | 979757921 | OSTERØY |
| BERGAN MASKIN & LANDBRUK | 998302307 | HOLMESTRAND |
| BERG & BRYN AS | 925791156 | TRYSIL |
| BERG BYGGTJENESTER AS | 992887052 | LEVANGER |