 | MJØLNER-BYGG AS | 922143706 | STAVANGER |
| MJØLNER BYGG & REHAB AS | 930922617 | PORSGRUNN |
| MJØLNER ENTREPRENØR AS | 930925233 | RANA |
| MJØMEN OG BERGE BYGGEVERKSEMND AS | 922704899 | GULEN |
| MJØNDALEN MUR OG PUSS AS | 973197207 | DRAMMEN |
| MJØSA VARME & SANITÆR AS | 922425345 | RINGSAKER |
| MJØSEN MURMESTERFORRETNING AS | 983528597 | HAMAR |
| MJØSENTREPRENØREN AS | 926716735 | ØSTRE TOTEN |
| MJØS MASKIN AS | 935888336 | ØYGARDEN |
| MKAS KRISTIANSEN | 933162273 | OSLO |
| MK BLÅSEISOLERING AS | 911710404 | MOSS |
| M&K BYGG AS | 918900500 | DRAMMEN |
| MK BYGG AS | 991375236 | ÅLESUND |
| MK BYGG OG MONTERING AS | 927670259 | BÆRUM |
| MK JOHANSEN DRIFT AS | 935353483 | ALTA |
| M K MYKLEBUST ENTREPRENØR AS | 979958234 | FJALER |
| MK TØMRER OG RØRSERVICE AS | 930104817 | OSLO |
| M L HAUGE Innehaver Jan Ludvig Hauge | 971042818 | NESODDEN |
| M&M BYGG AS | 917883114 | FREDRIKSTAD |
| MMBYGG AS | 937113242 | SANDNES |
| M&M BYGG OG RENOVERING AS | 936076629 | OSLO |
| M M BYGGSERVICE AS | 998127580 | ÅLESUND |
| MMC FIRST PROCESS AS | 979329903 | HERØY (MØRE OG ROMSDAL) |
| MMK BLIKK AS | 926060759 | DRAMMEN |
| MM TOTALBYGG ENTREPRENØR AS | 917430209 | OSLO |
| MNA TAKSERVICE AS | 925575895 | NANNESTAD |
| MN RØR & BYGG AS | 933968170 | LILLESTRØM |
| MN RØRLEGGERBEDRIFT AS | 927270188 | DRAMMEN |
| MO1 MASKIN AS | 927712202 | ÅL |
| M.Ø ANLEGG OG BETONG 2 AS | 931053396 | LINDESNES |
| MOBILGRUS AS | 996727300 | TYNSET |
| MOBY ENTREPRENØR AS | 991145834 | FREDRIKSTAD |
| MO BYGGSERVICE AS | 928451526 | ASKER |
| MODAHL ELEKTRISKE AS | 923660194 | NORDRE FOLLO |
| MODALSLI RØR AS | 923699562 | FLEKKEFJORD |
| MODERNE BAD OG FLIS AS | 912110400 | NORDRE FOLLO |
| MODERNE BYGGFORNYELSE AS | 979446071 | OSLO |
| MODERNE VVS AS | 967478091 | OSLO |
| MODERNO AS | 987934417 | OSLO |
| MODULE SOLUTIONS & SYSTEMS AS | 983228488 | SOLA |
| MODULPLUSS SØR AS | 927065029 | EVJE OG HORNNES |
| MODULSERVICE AS | 998210585 | SKIEN |
| MODULSYSTEM AS | 914964024 | OSLO |
| MODULVEGGER BERGEN AS | 897997312 | BERGEN |
| MODULVEGGER STAVANGER AS | 938527024 | SANDNES |
| MODUS ARKITEKTER AS | 998653576 | OSLO |
| MODUS MUR AS | 919332026 | KRISTIANSAND |
| MOE ENTREPRENØR AS | 991482806 | FJORD |
| MOELV BLIKKENSLAGERSERVICE AS | 930707333 | RINGSAKER |
| MOELVEN BYGGMODUL AS | 941809219 | RINGSAKER |
| MOELVEN LIMTRE AS | 913711300 | RINGSAKER |
| MOELVEN MODUS AS | 951269778 | ULLENSAKER |
| MOELV RØRSERVICE AS | 983196551 | RINGSAKER |
| MOE MASKIN & BETONG AS | 937230230 | TRONDHEIM |
| MOE MASKIN OG TRANSPORT AS | 824353182 | SMØLA |
| MOEN-BYGG AS | 934669940 | LUNNER |
| MOENS BYGGSERVICE AS | 928027902 | VESTNES |
| MOE VENTILASJON AS | 912390748 | FREDRIKSTAD |
| MOFOSSBAKKE BYGG SERVICE | 995263076 | DRANGEDAL |
| MOI ARKITEKTER AS | 917126917 | ASKER |
| MOI BYGG AS | 983270492 | KVINESDAL |
| MOI RØR AS | 971004525 | KRISTIANSAND |
| MOLAND TOTAL AS | 911908921 | SENJA |
| MOLDEN ARKITEKTER AS | 954990508 | BERGEN |
| MOLDE VVS AS | 990507139 | MOLDE |
| MOLDJORD BYGG OG ANLEGG AS | 986899545 | BEIARN |
| MOLDREM MASKIN AS | 925581372 | VEFSN |
| MOLL AS | 996755088 | SANDNES |
| MØLL BYGG AS | 814348962 | LINDESNES |
| MØLLER MUR OG BYGG AS | 963433212 | OSLO |
| MØLNÅ BYGG AS | 934957873 | TRONDHEIM |
| MOLO CONSULTING AS | 932019248 | KRISTIANSAND |
| MØLSTER INSTALLASJON AS | 985160775 | VOSS |
| MOLVÆR BYGG AS | 875998552 | SULA |
| MOMEK CIVIL AS | 990797366 | RANA |
| MOMENT BETONG AS | 927896311 | SANDNES |
| MOMENTUM ARKITEKTER AS | 992034904 | OSLO |
| MOMRAK MESTERBYGG AS | 931590847 | FYRESDAL |
| MONSEN ELEKTRO AS | 914392489 | BERGEN |
| MONS GREGERSEN AS | 979346050 | HOLMESTRAND |
| MONSTAD BYGG AS | 997299639 | TØNSBERG |
| MONTAL SYSTEMS AS | 957226833 | VIK |
| MONTASJE SERVICE AS | 991960368 | KRISTIANSUND |
| MONTASJETEKNIKK AS | 916886918 | LILLESAND |
| MØRCH & KOLDRE MUR & FLIS AS | 983752349 | LILLESTRØM |
| MØRE ANLEGG AS | 934349024 | SYKKYLVEN |
| MØREBYGG AS | 927418169 | ÅLESUND |
| MØRE ELEKTROSERVICE AS | 991965742 | ÅLESUND |
| MØRE MILJØSANERING AS | 912383822 | SYKKYLVEN |
| MØRE RØR AS | 912403602 | SYKKYLVEN |
| MØRE STÅL AS | 917823758 | ÅLESUND |
| MØRE TAK AS | 927678047 | SULA |
| MORFEUS AS | 945139579 | OSLO |
| MORFO ARKITEKTER AS | 916637217 | OSLO |
| MORGAN AS | 998179327 | DRANGEDAL |
| MORGEDAL BYGG AS | 912118444 | KVITESEID |
| MORITZ VATLE & SØNN AS | 917089019 | BERGEN |
| MORKEN MASKIN AS | 920366201 | SKAUN |
| MØRK VVS RØRLEGGERBEDRIFT AS | 920609333 | OSLO |
| MORO-BYGG AS | 929149270 | TRONDHEIM |