 | MONIA AS | 918888020 | OSLO |
| MONSEN ELEKTRO AS | 914392489 | BERGEN |
| MONS GREGERSEN AS | 979346050 | HOLMESTRAND |
| MONTAL SYSTEMS AS | 957226833 | VIK |
| MONTASJE SERVICE AS | 991960368 | KRISTIANSUND |
| MONTASJETEKNIKK AS | 916886918 | LILLESAND |
| MØRCH & KOLDRE MUR & FLIS AS | 983752349 | LILLESTRØM |
| 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 |
| MORGEDAL RØR AS | 914397081 | SELJORD |
| MORITZ VATLE & SØNN AS | 917089019 | BERGEN |
| MORKEN MASKIN AS | 920366201 | SKAUN |
| MØRK VVS RØRLEGGERBEDRIFT AS | 920609333 | SKIPTVET |
| MORO-BYGG AS | 929149270 | TRONDHEIM |
| MORONA ARKITEKT-STUDIO ÅSE HOVDA FLINDALL SIVILARKITEKT MNAL | 997354699 | TYSVÆR |
| MORTEN BRÅTHEN | 954783782 | INDRE ØSTFOLD |
| MORTEN BRUVOLD AS | 999614361 | LUNNER |
| MORTEN EIDE ARKITEKTER AS | 943783950 | OSLO |
| MORTEN FOSSEN AS | 979964315 | SIGDAL |
| MORTEN GULTVEDT ENTREPRENØR AS | 970903178 | ÅS |
| MORTEN HALHJEM BYGG AS | 917799474 | BJØRNAFJORDEN |
| MORTEN KVAL AS | 980395952 | LILLEHAMMER |
| MORTEN LUDVIGSEN GRAVESERVICE | 968903691 | LØRENSKOG |
| MORTEN NYBROT AS | 990478376 | BJØRNAFJORDEN |
| MORTEN RØR AS | 995360039 | EIGERSUND |
| MORTEN SLAATSVEEN | 986082247 | GJØVIK |
| MORTEN TAK & BYGG MORTEN HOLTUNG | 988743984 | NORDRE FOLLO |
| MOSS BAD OG VARME AS | 930686018 | MOSS |
| MOSS ENTREPRENØR AS | 916135815 | RÅDE |
| MOSS FLIS & BETONG AS | 995256797 | MOSS |
| MOSS GLASS OG FASADE AS | 987415517 | MOSS |
| MOSS RØRLEGGER AS | 933576256 | MOSS |
| MOSS RØRLEGGERSERVICE AS | 976814738 | MOSS |
| MOSS VVS AS | 816173892 | MOSS |
| MOSTER ELEKTRO AS | 990904715 | BØMLO |
| MOSTUE AS | 913184602 | NORDRE FOLLO |
| M. OTTERSHAGEN & SØNN AS | 995709651 | LØTEN |
| MOTUM AS | 818709722 | OSLO |
| MOTUM RULLETRAPPER AS | 921862709 | EIDSVOLL |
| MPFC AS | 922699550 | NITTEDAL |
| MPF ENTREPRENØR AS | 985613338 | OSLO |
| MP RENOVERING AS | 926275690 | BÆRUM |