| Lyckåkers Motor Aktiebolag | Ludvika | 0 tkr |
| Lyfra AB | Mora | 0 tkr |
| Lykkars AB | Borlänge | 0 tkr |
| Lyko Holding AB | Dala-Järna | 0 tkr |
| Lyviken Holding AB | Ludvika | 0 tkr |
| m2 Byggtjänster AB | Forserum | 0 tkr |
| m2 robotics AB | Fagersta | 0 tkr |
| M3M Investment AB | Falun | 0 tkr |
| Maadi company Aktiebolag | Malungsfors | 0 tkr |
| M. Aberg Invest AB | Borlänge | 0 tkr |
| Macawa förvaltning AB | Borlänge | 0 tkr |
| Machapuchare AB | Borlänge | 0 tkr |
| Mackla Fastigheter AB | Falun | 0 tkr |
| Mackla Holding AB | Falun | 0 tkr |
| MADEAEVENT AB | Tällberg | 0 tkr |
| Madsine AB | Stockholm | 0 tkr |
| Magellix AB | Falun | 0 tkr |
| Magistrat Invest AB | Falun | 0 tkr |
| Magneto Trading AB | Borlänge | 0 tkr |
| Magnus Giers AB | Gagnef | 0 tkr |
| Magnus Gustafsson i Borlänge AB | Borlänge | 0 tkr |
| M Ahlnander AB | Borlänge | 0 tkr |
| MAHOOR GOLF & BAR AB | Falun | 0 tkr |
| MAHOOR HOLDING AB | Falun | 0 tkr |
| MAIATO AB | Borlänge | 0 tkr |
| Maivar AB | Orsa | 0 tkr |
| Maja 1 AB | Sundborn | 0 tkr |
| Maja Lillsund Förvaltning AB | Karlstad | 0 tkr |
| Maja Olhans AB | Hedemora | 0 tkr |
| MAKI Productions AB | Falun | 0 tkr |
| Mäklarcentrum A Bogren AB | Sörsjön | 0 tkr |
| MAKO Försäljnings AB | Borlänge | 0 tkr |
| Mälardalens Golv och Fastigheter AB | Avesta | 0 tkr |
| Målardotter Invest AB | Siljansnäs | 0 tkr |
| Maldan AB | Borlänge | 0 tkr |
| Malin P Interior & Design AB | Enviken | 0 tkr |
| Malisbacke Förvaltning AB | Borlänge | 0 tkr |
| Mällmuga Holding AB | Malung | 0 tkr |
| Malmsta Förvaltning AB | Nås | 0 tkr |
| Malmväster 4 AB | Falun | 0 tkr |
| MaLoPa Skog AB | Mora | 0 tkr |
| Malujo AB | Vansbro | 0 tkr |
| Malung & Sälen Event AB | Malung | 0 tkr |
| Malung-Sälen Företagsförvaltning AB | Malung | 0 tkr |
| Malungs Outlet AB | Karlsborg | 0 tkr |
| Manhem i Falun Fastighets AB | Falun | 0 tkr |
| Manne Ryberg AB | Borlänge | 0 tkr |
| Mantello AB | Halmstad | 0 tkr |
| maple mountain solutions AB | Leksand | 0 tkr |
| Maralago Industri AB | Falun | 0 tkr |