| Marketina Group AB | Karlstad | 0 tkr |
| Mark i Värmland Holding AB | Stockholm | 0 tkr |
| Marktop Aktiebolag | Torsby | 0 tkr |
| Markurell AB | Saxdalen | 0 tkr |
| Markus & Madde AB | Karlstad | 0 tkr |
| Marnac AB | Karlstad | 0 tkr |
| Marpha AB | Karlstad | 0 tkr |
| Märsi i Karlstad AB | Karlstad | 0 tkr |
| Martelius Vetenskapsinformation AB | Arvika | 0 tkr |
| Martina Cambrand Holding AB | Storfors | 0 tkr |
| Martin Carlson Invest AB | Årjäng | 0 tkr |
| Martin Folkesson Holding AB | Västra Ämtervik | 0 tkr |
| Martin Hansson Holding AB | Molkom | 0 tkr |
| Martin Höglund IT AB | Skattkärr | 0 tkr |
| Martin Liljestrand Consulting AB | Säffle | 0 tkr |
| Martin Nilsson Invest AB | Hagfors | 0 tkr |
| Martin Olander Förvaltning AB | Hammarö | 0 tkr |
| Martin Rogne Holding AB | Karlstad | 0 tkr |
| Maryvest AB | Karlstad | 0 tkr |
| MASA services AB | Töreboda | 0 tkr |
| MAS i Töcksfors AB | Töcksfors | 0 tkr |
| MASIV Holding AB | Hammarö | 0 tkr |
| Maskinaktiebolaget XML i Kil | Karlstad | 0 tkr |
| Mäss-Card AB | Karlstad | 0 tkr |
| Mässvik Invest AB | Säffle | 0 tkr |
| M-A Taxi AB | Karlstad | 0 tkr |
| Matgard Förvaltnings AB | Hammarö | 0 tkr |
| MATIRO Consulting AB | Gunnarskog | 0 tkr |
| Mats Hultman Holding AB | Karlstad | 0 tkr |
| Mats Moberg Förvaltnings AB | Kristinehamn | 0 tkr |
| Mats Nordström Förvaltning AB | Hammarö | 0 tkr |
| Mats Wilhelm Nilsson holding AB | Karlstad | 0 tkr |
| Matthias Nevlund AB | Göteborg | 0 tkr |
| Mattias Gevcen AB | Karlstad | 0 tkr |
| Mattias Melin Holding AB | Karlstad | 0 tkr |
| Mattias Tollin Holding AB | Karlstad | 0 tkr |
| Mattila Invest AB | Östmark | 0 tkr |
| Mauer Holding AB | Hammarö | 0 tkr |
| Maverone AB | Karlstad | 0 tkr |
| Maviki AB | Karlstad | 0 tkr |
| MaWeld AB | Karlstad | 0 tkr |
| Max. A Konsult AB | Kristinehamn | 0 tkr |
| Maxstad Förvaltning AB | Kristinehamn | 0 tkr |
| Maxx Optimal Bemanning AB | Kristinehamn | 0 tkr |
| MBI konsult AB | Arvika | 0 tkr |
| MBLN Holding AB | Karlstad | 0 tkr |
| MBLN Invest AB | Karlstad | 0 tkr |
| McGrill Holding AB | Karlstad | 0 tkr |
| MC Holding i Årjäng AB | Årjäng | 0 tkr |
| MCloud Group AB | Torsby | 0 tkr |