 | DONAR AS | 985200815 | BERGEN |
| DON LAWRENCE ARKITEKT AS | 915432980 | OSLO |
| DØRHEIM VVS AS | 918389997 | SANDNES |
| DØRMÆNEN & EIDE AS | 939155570 | BERGEN |
| DOVLAND ANLEGG AS | 925395919 | EVJE OG HORNNES |
| DOVREBYGG AS | 968514946 | DOVRE |
| DOVRE BYGG ENTREPRENØR AS | 917150621 | ORKLAND |
| DOZERDRIFT AS | 911202867 | NORE OG UVDAL |
| DPEND ENTREPRENØR AS | 996467287 | DRAMMEN |
| DPEND VVS AS | 988416487 | DRAMMEN |
| DP KOBBER- OG BLIKKENSLAGER AS | 928617629 | BÆRUM |
| DRAGEBYGG AS | 934459202 | STAD |
| DRAGEFOSSEN AS | 911204177 | SALTDAL |
| DRAMMEN BYGGENTREPRENØR AS | 984624735 | DRAMMEN |
| DRAMMEN ENTREPRENØR AS | 998577470 | DRAMMEN |
| DRAMMEN MESTERBYGG AS | 989160737 | DRAMMEN |
| DRANGE BRUK AS | 942207093 | BJØRNAFJORDEN |
| DRANGE MASKIN & TRANSPORT AS | 832486612 | ØYGARDEN |
| DRANGE MURMESTERFORRETNING AS | 977074037 | OSTERØY |
| DRANGES TAKST OG BYGG AS | 915879799 | AURSKOG-HØLAND |
| DRÅPE ENTREPRENØR AS | 920044352 | OSLO |
| DREVLAND AS | 914414172 | BRØNNØY |
| DR ING A AAS-JAKOBSEN AS | 941019285 | OSLO |
| DR ING A AAS-JAKOBSEN TRONDHEIM AS | 959115621 | TRONDHEIM |
| DR.ING. TORBJØRN KJOBERG AS | 924190531 | OSLO |
| DRIV ARKITEKTER AS | 984590857 | OSLO |
| DRMA AS | 985787972 | DRAMMEN |
| DRØBAK ARKITEKTKONTOR AS | 943515026 | FROGN |
| DRØBAK RØRLEGGERSERVICE AS | 845705712 | FROGN |
| DRØBAK TØMRERSERVICE AS | 992793279 | FROGN |
| DROGSETH BYGG AS | 824324662 | NORDRE FOLLO |
| DRØMMEHUSET AS | 918617132 | BERGEN |
| DRONEDATA AS | 922346151 | EIDSKOG |
| DRONNINGA LANDSKAP AS | 988695521 | OSLO |
| DR TECHN KRISTOFFER APELAND AS | 857288262 | OSLO |
| DR TECHN OLAV OLSEN AS | 981124626 | BÆRUM |
| DRUGLI MASKIN AS | 986977295 | ORKLAND |
| DRY WORKS AS | 912396967 | NOME |
| DS BYGG & EIENDOM AS | 928728935 | ELVERUM |
| DS BYGGTEAM AS | 929256514 | STANGE |
| DS ENTREPRENØR AS | 893846352 | FREDRIKSTAD |
| DSL STÅL AS | 987976012 | MELHUS |
| DSN ENTREPRENØR AS | 974397900 | VÅGAN |
| DS NOR AS | 997222717 | KRISTIANSUND |
| DS RØR & VARME AS | 915533965 | TRONDHEIM |
| DS STÅLKONSTRUKTION | 995522225 | MOSS |
| DST ARKITEKTER AS | 929224876 | DRAMMEN |
| DST BYGG AS | 929583396 | SANDEFJORD |
| DUCO AS | 914180929 | KARMØY |
| DUO TAKST AS | 929774698 | TIME |