| Marksyskon Holding AB | Hallsberg | 0 tkr |
| MarMat handelsområde AB | Degerfors | 0 tkr |
| MarMat Invest AB | Degerfors | 0 tkr |
| Marmesta AB | Örebro | 0 tkr |
| Mårtensson i Örebro Förvaltning AB | Örebro | 0 tkr |
| Martinas Tårtor AB | Örebro | 0 tkr |
| Martin Ellvåg Holding AB | Saxtorp | 0 tkr |
| Martin Gustafsson Invest AB | Örebro | 0 tkr |
| Martin Hallonqvist Konsult och Holding AB | Örebro | 0 tkr |
| Martin Lindqvist i Örebro AB | Örebro | 0 tkr |
| Martin Pettersson Holding AB | Örebro | 0 tkr |
| Martin Rödjemyr Holding AB | Örebro | 0 tkr |
| Marysol Assistans AB | Örebro | 0 tkr |
| MASALPHA AB | Kopparberg | 0 tkr |
| Mashout AB | Örebro | 0 tkr |
| Maskinfokus i Örebro AB | Örebro | 0 tkr |
| Maskin & Motorservice Stefan Johansson AB | Örebro | 0 tkr |
| Maskin System Europe Holding AB | Örebro | 0 tkr |
| Masor Förvaltning AB | Guldsmedshyttan | 0 tkr |
| Mästare på fönster i Örebro AB | Örebro | 0 tkr |
| M&A Taube AB | Örebro | 0 tkr |
| Matchler AB | Karlskoga | 0 tkr |
| Mathias Henningsson Holding AB | Örebro | 0 tkr |
| Mathildas i Laxå Aktiebolag | Laxå | 0 tkr |
| Matmecka i Örebro AB | Örebro | 0 tkr |
| Mats Bergeå AB | Örebro | 0 tkr |
| Mats Leppänen i Hällefors AB | Hällefors | 0 tkr |
| Mats & Thomas Bygg AB | Nora | 0 tkr |
| Mats Wettergren Marknad & Media AB | Karlskoga | 0 tkr |
| Matteus Slivo Invest AB | Örebro | 0 tkr |
| Matthe DRD AB | Örebro | 0 tkr |
| Mattias Larsson i Hammar AB | Hammar | 0 tkr |
| Mattias Lyrén AB | Örebro | 0 tkr |
| Mattisson Kommunikation AB | Örebro | 0 tkr |
| Mauritz och Son AB | Örebro | 0 tkr |
| Maxbo AB | Kumla | 0 tkr |
| Max Energi Konsult AB | Örebro | 0 tkr |
| Maxitech Göteborg AB | Göteborg | 0 tkr |
| Maxitech Karlstad AB | Karlstad | 0 tkr |
| Maxitech Örebro AB | Örebro | 0 tkr |
| Maxitech Stockholm AB | Stockholm | 0 tkr |
| Maxitech Work Holding AB | Örebro | 0 tkr |
| Max Nilsson Invest AB | Karlskoga | 0 tkr |
| Maya Dent AB | Örebro | 0 tkr |
| Maya Omsorg AB | Örebro | 0 tkr |
| Mayas Bygg AB | Örebro | 0 tkr |
| Mayli optik Holding AB | Odensbacken | 0 tkr |
| MB Hydraulik AB | Örebro | 0 tkr |
| MB Make Business Aktiebolag | Örebro | 0 tkr |
| M-Bromé AB | Kumla | 0 tkr |