 | NBN NAUSTDAL AS | 916522800 | SUNNFJORD |
| NC BYGG AS | 911572095 | ALTA |
| NCC INDUSTRY AS | 984884176 | OSLO |
| NCC NORGE AS | 911274426 | OSLO |
| NCGS AS | 998418127 | ØVRE EIKER |
| NCO AS | 995905949 | OSLO |
| ND BYGG AS | 924792043 | OSLO |
| NEA ENTREPRENØR AS | 926623818 | SELBU |
| NEAS ELEKTRO AS | 956889057 | KRISTIANSUND |
| NEBBENES BYGG AS | 998859042 | LILLESTRØM |
| NEC AS | 898438422 | BERGEN |
| NEDIG AS | 979394179 | ARENDAL |
| NEDREBØ MASKIN & TRANSPORT AS | 816823692 | BOKN |
| NEDRE ROMERIKE BYGG AS | 997517288 | LILLESTRØM |
| NEDREVÅG AS | 997170822 | ULLENSVANG |
| NE EIENDOM AS | 915414052 | FARSUND |
| NEMKO NORLAB AS | 953018144 | RANA |
| NE OFOTEN AS | 929343077 | NARVIK |
| NERDAL ENTREPRENØR AS | 918553428 | GULEN |
| NERHEIM & SØNNER MASKIN OG TRANSPORT AS | 926782061 | TYSVÆR |
| NERI HELGE FLOTHYL | 870343302 | VINJE |
| NERLAND MASKIN AS | 942144326 | HUSTADVIKA |
| NERLAND MUR AS | 912075583 | MOLDE |
| NERNES SNEKKERI & BYGG | 925586935 | BJØRNAFJORDEN |
| NERUM LARS HÅKON | 969088843 | SIGDAL |
| NESBAKK RØR AS | 934943848 | STAD |
| NESBØ MASKIN OG TRANSPORT AS | 915347649 | AURLAND |
| NESBYEN PUKK & BETONG AS | 950392924 | NESBYEN |
| NES BYGG OG PROSJEKTERING AS | 927609150 | VESTBY |
| NES GRAVE OG SPRENGESERVICE AS | 942594615 | OSLO |
| NES HUS & HYTTEBYGG AS | 990375496 | NESBYEN |
| NESLIN BYGG AS | 912155137 | MERÅKER |
| NES MASKINSERVICE AS | 916848110 | NES |
| NESNA MASKINSTASJON AS | 981888936 | NESNA |
| NES RØR AS | 876725622 | RINGSAKER |
| NES RØRLEGGERBEDRIFT AS | 921398433 | NES |
| NES RØRSERVICE AS | 968321811 | NES |
| NESS BYGG AS | 920803512 | SOGNDAL |
| NESSET BYGG AS | 956833876 | MOLDE |
| NESS INDUSTRI AS | 922707596 | VÅGAN |
| NES TOTALDRIFT AS | 928624242 | NES |
| NESTTUN VVS AS | 922157987 | BERGEN |
| NESVIK AS | 998799244 | HÅ |
| NETCO AS | 974478285 | HAMAR |
| NETEL AS | 983096514 | OSLO |
| NETGLASS TOTALFASADE AS | 915286399 | TROMSØ |
| NETLANDSNES ANLEGG AS | 996737802 | KVINESDAL |
| NEUE HEIMAT AS | 922904847 | FROGN |
| NEWSEC PROJECT AS | 984500106 | OSLO |
| NEWSEC PROPERTY ASSET MANAGEMENT AS | 959718482 | TRONDHEIM |