 | BOBYGG JÆREN AS | 986394826 | HÅ |
| BØ BYGGTEAM AS | 989255371 | MIDT-TELEMARK |
| BØCON AS | 994968769 | SANDNES |
| BO DESIGN VEST AS | 990024200 | ØYGARDEN |
| BODØ BOLIGTAKST OG KONTROLL AS | 932008130 | BODØ |
| BODØ ELEKTRISKE AS | 915894259 | BODØ |
| BODØ GLASS & RAMME AS | 976548124 | BODØ |
| BODØ RØR & KLIMA AS | 925154083 | BODØ |
| BODØ VVS J WILLUMSEN AS | 933629015 | BODØ |
| BØE & BRUVIK ENTREPRENØRSERVICE AS | 976506367 | OSTERØY |
| BOE BYGG AS | 924952016 | BERGEN |
| BØEN GRAVING OG TRANSPORT AS | 992287926 | HJARTDAL |
| B & O FORBERG AS | 911754215 | EIDSVOLL |
| BOGL NORGE AS | 924678380 | OSLO |
| BOH BYGG AS | 997947568 | KRISTIANSAND |
| BOHLIN MASKIN & TRANSPORT AS | 914232201 | RANA |
| BØHN ANLEGG AS | 899222512 | RAKKESTAD |
| BØHN & HAMAR VVS AS | 925484911 | SØR-AURDAL |
| BØIFOT ELEKTRO AS | 980379191 | KRISTIANSUND |
| BØ INSTALLASJON AS | 984971109 | MIDT-TELEMARK |
| BOIT AS | 914391768 | OSLO |
| BOKANDER RØRTEKNIKK AS | 917592810 | DRAMMEN |
| BOKEMO AS | 931901877 | OSLO |
| BOKK AS | 915514146 | KLEPP |
| BØLE BYGG AS | 988240087 | SIGDAL |
| BØLGEBLIKK ARKITEKTER AS | 939975012 | OSLO |
| BOLIG & BEDRIFT VVS AS | 995232502 | ASKØY |
| BOLIGBYGG AS | 979689241 | ASKER |
| BOLIGBYGGELAGENES BOSERVICE AS | 983549233 | SKIEN |
| BOLIGBYGGELAGET USBL | 950285680 | OSLO |
| BOLIGBYGG FOLLO ENTREPRENØR AS | 922613516 | ENEBAKK |
| BOLIGCONSULT AS | 990892652 | RÅDE |
| BOLIG & EIENDOM AS | 917357161 | ALVER |
| BOLIGENTREPRENØREN AS | 925757616 | SKIEN |
| BOLIG GRUPPEN BYGG AS | 822807852 | MALVIK |
| BOLIGHUS AS | 992901799 | LINDESNES |
| BOLIGLEVERANDØREN KARMØY AS | 970973443 | KARMØY |
| BOLIGOPP AS | 921862164 | TRONDHEIM |
| BOLIGPARTNER INNLANDET AS | 933671410 | HAMAR |
| BOLIG PRO AS | 933881784 | TRONDHEIM |
| BOLIG TAKST OG TEGNING AS | 927456303 | HÅ |
| BOLLINGER + GROHMANN INGENIØRER AS | 915298087 | OSLO |
| BOLSETH GLASS AS | 914701821 | GLOPPEN |
| BOLSTAD AS | 989552856 | BERGEN |
| BOLT BYGGENTREPRENØR AS | 946945544 | OSLO |
| BOLT VEST AS | 929882474 | SANDNES |
| BOLY BYGG AS | 926028162 | KLEPP |
| BOMA ENTREPRENØR AS | 826504102 | GRAN |
| BOMEKAN AS | 985338442 | HOLMESTRAND |
| BO MER BYGGTJENESTER AS | 934150058 | VESTBY |