 | DARAK DESIGN Dag Wirak | 951438707 | GRIMSTAD |
| DARK ARKITEKTER AS | 913659023 | OSLO |
| DARK BERGEN AS | 924729686 | BERGEN |
| DARK FREDRIKSTAD AS | 916322925 | FREDRIKSTAD |
| DARK MATTER AS | 915855849 | LØRENSKOG |
| DARK STAVANGER AS | 921629559 | STAVANGER |
| DATEK INSTALLASJON AS | 916110529 | OSLO |
| DATELCO AS | 968366076 | OSLO |
| DAVID ANDERSEN | 970429409 | HOLMESTRAND |
| DAVID BYGG AS | 975966844 | ASKER |
| DAVIK ALLSERVICE v/Bjørn Forsberg | 988664030 | BREMANGER |
| DAVMAR SERVICES AS | 929265513 | TØNSBERG |
| DAVOR KNEZEVIC | 989292145 | SKAUN |
| DAXARO ARKITEKTUR AS | 925580910 | KONGSBERG |
| DBB AS | 930564788 | HAUGESUND |
| DB BYGG AS | 920254179 | INDRE ØSTFOLD |
| DBYGG AS | 911839768 | LUNNER |
| DC BYGG SERVICE AS | 929405196 | ØYER |
| DE BYGG AS | 927033747 | HAMMERFEST |
| DECO NORGE AS | 916204078 | MOSKENES |
| DE ELEKTRO AS | 989119621 | OSLO |
| DEGERUD TØMRERSERVICE AS | 997817982 | NESODDEN |
| DEGREE OF FREEDOM AS | 996013448 | OSLO |
| DEGVOLD BYGG ANS | 969976110 | ØSTRE TOTEN |
| DEKAGON AS | 932563509 | RINGSAKER |
| DEKO BYGG AS | 926751867 | LØRENSKOG |
| DEMCO AS | 931596187 | BERGEN |
| DEMOTEC AS | 997843878 | LARVIK |
| DERBITAK MALCO AS | 918750592 | KRISTIANSAND |
| DEROME TAKSTOLTEKNIKK AS | 976024893 | EIDSVOLL |
| DE RØRLEGGERSERVICE AS | 987283963 | BJØRNAFJORDEN |
| DETOTAKST AS | 912235556 | SANDNES |
| DEVO AS | 915662323 | STAVANGER |
| DF PRO AS | 931100556 | MOSS |
| D. HAUGEN BYGG AS | 927434326 | ALVER |
| DIAGEN INTERNATIONAL INC. AS | 989280813 | RÅDE |
| DIDRIK NYSTED AS | 914858488 | SANDNES |
| DIG PLAN AS | 871064792 | ØYGARDEN |
| DILLERUD ANLEGG AS | 998053617 | SKIPTVET |
| DIMA MURERFIRMA AS | 998386160 | KARMØY |
| DIMCO AS | 997543424 | FREDRIKSTAD |
| DIMENSJON AS | 926138561 | OSLO |
| DIMMELSVIK ENTREPRENØR AS | 990149062 | KVINNHERAD |
| DIN BLIKKENSLAGER Henning Carstensen | 874362972 | DRAMMEN |
| DIN BOLIG AS | 988973424 | ØRSTA |
| DIN BOLIG SØKNAD AS | 918638369 | BERGEN |
| DIN BYGGTJENESTE AS | 983225144 | SANDNES |
| DIN ELEKTROPARTNER AS | 989342428 | NESODDEN |
| DIN RØRLEGGER FOSEN AS | 921777450 | INDRE FOSEN |
| DIN RØRLEGGER NARVIK AS | 923888985 | NARVIK |