| M & M Städ & Sanering Handelsbolag | Höör | — |
| M&M Taxi & Transport AB | Oxie | — |
| MMT Multi MediaTech AB | Helsingborg | — |
| M&M transport AB | Helsingborg | — |
| M&M Travel Group AB | Arlöv | — |
| mm&tum Kommanditbolag | Smedstorp | — |
| MN24 Konsult AB | Helsingborg | — |
| MN bilvård, bilservice & däckservice Handelsbolag | Helsingborg | — |
| M Neuding Holding AB | Höllviken | — |
| MN Living AB | Osby | — |
| MN riv & fuktsanering Malmö AB | Svedala | — |
| MNW AB | Saxtorp | — |
| MNY Consulting AB | Lund | — |
| Mobile Welding in Glimåkra AB | Glimåkra | — |
| Mobilitetsbyrån AB | Malmö | — |
| MOCOT Group AB | Malmö | — |
| ModelLight AB | Genarp | — |
| Modeltec AB | Vellinge | — |
| Moderax Förvaltning AB | Lomma | — |
| Moderhjulet AB | Limhamn | — |
| Moding Invest AB | Malmö | — |
| Möd Mad Handelsbolag | Klippan | — |
| Modula Sweden AB | Askim | — |
| Modulix AB | Landskrona | — |
| Modulus 11 AB | Malmö | — |
| Möe Mad AB | Malmö | — |
| Mofab Flexi Building System Handelsbolag | Malmö | — |
| Moffat Hartzén Enterprises AB | Kävlinge | — |
| Moha Fashion & Logistiks Handelsbolag | Lund | — |
| Mohemi construction AB | Svedala | — |
| Moilo AB | Lund | — |
| Mojir Consulting AB | Limhamn | — |
| MOKSIO AB | Lomma | — |
| Moldovine AB | Helsingborg | — |
| Molin Analysis & Consulting AB | Eslöv | — |
| Möllan Micro Handelsbolag | Malmö | — |
| Möllans Tobak AB | Malmö | — |
| Mollberg Konsult AB | Bunkeflostrand | — |
| Möller Hansen Group AB | Stockholm | — |
| Möllers Entreprenad AB | Hörby | — |
| Möllers Hovslageri Handelsbolag | Vellinge | — |
| Molnverk AB | Vellinge | — |
| MOLTO G AB | Malmö | — |
| MOM Jobacker - marknad, organisation, miljö Handelsbolag | Beddingestrand | — |
| Mommee's Kommanditbolag | Helsingborg | — |
| Moms Second Handelsbolag | Vinslöv | — |
| Momtaz Ekonomi AB | Södra Sandby | — |
| Monei AB | Barsebäck | — |
| Monkey King AB | Bjärred | — |
| MONKIE Media Kommanditbolag | Malmö | — |