 | MELAND BYGG OG LANDBRUK | 992338245 | HJELMELAND |
| MELBA VVS AS | 964816565 | OSLO |
| MELBY MASKIN AS | 961611571 | EIDSKOG |
| MELCON AS | 939847065 | AURLAND |
| MELDAL BLIKKENSLAGERVERKSTED AS | 944444378 | ORKLAND |
| MELHUS BETONG AS | 928456811 | MELHUS |
| MELHUS BYGG & EIENDOM AS | 919932511 | MELHUS |
| MELING BYGGTEKNIKK AS | 925179701 | STAVANGER |
| MELKEVOLL MASKIN AS | 992834013 | STRYN |
| MELLBYE ARKITEKTUR INTERIØR AS | 945844159 | OSLO |
| MELLEBYGG AS | 988975699 | LØRENSKOG |
| MELLEMSTRAND ANLEGGSERVICE AS | 992121386 | KLEPP |
| MELLES RØRLEGGER AS | 923668861 | KRISTIANSAND |
| MELSOM ARKITEKTUR | 931431358 | OSLO |
| MELUM MASKIN AS | 913772261 | SKIEN |
| MEMBRANER OG TAKTEKKING AS | 874402052 | GJERDRUM |
| MEMBRANTAK SERVICE AS | 932267101 | MIDTRE GAULDAL |
| MEMM DRIFT AS | 929579798 | TROMSØ |
| MEMO ELEKTRO AS | 985853673 | LØRENSKOG |
| MEMO ELSERVICE AS | 998191246 | LØRENSKOG |
| MENSTAD BOLIG AS | 911913437 | SKIEN |
| MEPRO RØR AS | 912678954 | DRAMMEN |
| MERÅKER VVS AS | 926352458 | MERÅKER |
| MER ARKITEKTUR AS | 939626387 | OSLO |
| MERCUR VVS AS | 915088384 | OSLO |
| MERCUR VVS ENTREPRENØR AS | 920015239 | OSLO |
| MERIKON AS | 912226395 | NES |
| MERK AS | 992675497 | ÅLESUND |
| ME-RO BETONGSAGING AS | 991286659 | LIER |
| MESNA BYGG AS | 929347927 | RINGSAKER |
| MESNA RØRLEGGERSERVICE AS | 917127395 | RINGSAKER |
| MESTA AS | 992804440 | OSLO |
| MEST ENTREPRENØR AS | 931664344 | ÅL |
| MESTER BEDRIFTEN BRATFOS RØRSERVICE AS | 924515813 | OSLO |
| MESTERBEDRIFTEN LUND AS | 927443740 | ENEBAKK |
| MESTER BERG BYGGMESTER AS | 924489219 | SARPSBORG |
| MESTERBETONG BODØ AS | 931692305 | BODØ |
| MESTERBLIKK AS | 876195682 | TRONDHEIM |
| MESTER BLIKK OG TAK AS | 895613142 | ØVRE EIKER |
| MESTERBOLIG OG BYGGTJENESTE AS | 984342942 | ASKER |
| MESTERBYGG BRYNE AS | 826055022 | TIME |
| MESTERBYGG DOMBÅS AS | 997107780 | DOVRE |
| MESTER BYGG & EIENDOMSUTVIKLING AS | 995481898 | AURSKOG-HØLAND |
| MESTERBYGG HALDEN AS | 965764933 | HALDEN |
| MESTERBYGG JÆREN AS | 994801791 | HÅ |
| MESTERBYGG MOSS AS | 991603026 | MOSS |
| MESTERBYGG NORDBY AS | 914884802 | NORDRE FOLLO |
| MESTERBYGG NUMEDAL AS | 889031832 | FLESBERG |
| MESTER BYGG OG UTEROM AS | 999200397 | RINGERIKE |
| MESTERBYGG RINGERIKE AS | 970942408 | RINGERIKE |