| Madsine AB | Stockholm | 0 tkr |
| Magellix AB | Falun | 0 tkr |
| Magistrat Invest AB | Falun | 0 tkr |
| M Ahlnander AB | Borlänge | 0 tkr |
| MAHOOR GOLF & BAR AB | Falun | 0 tkr |
| MAHOOR HOLDING AB | Falun | 0 tkr |
| Maja 1 AB | Sundborn | 0 tkr |
| MAKI Productions AB | Falun | 0 tkr |
| Mälardalens Golv och Fastigheter AB | Avesta | 0 tkr |
| Malin P Interior & Design AB | Enviken | 0 tkr |
| Malmsta Förvaltning AB | Nås | 0 tkr |
| Malmväster 4 AB | Falun | 0 tkr |
| Manhem i Falun Fastighets AB | Falun | 0 tkr |
| Maralago Industri AB | Falun | 0 tkr |
| Maralago Properties AB | Falun | 0 tkr |
| MarHed AB | Falun | 0 tkr |
| Maria Lindholm i Dalarna AB | Toftbyn | 0 tkr |
| Marie Klingberg Förvaltning AB | Leksand | 0 tkr |
| Marketing Advertisement Sales Dalarna AB | Sågmyra | 0 tkr |
| Martinjobs AB | Falun | 0 tkr |
| Martisa AB | Falun | 0 tkr |
| Masmästaren Förvaltning AB | Göteborg | 0 tkr |
| MASO Consulting AB | Falun | 0 tkr |
| Masterpiece Proxies AB | Falun | 0 tkr |
| Matematikkonsulterna Ln och Pi AB | Falun | 0 tkr |
| Mathuset i Falun Aktiebolag | Borlänge | 0 tkr |
| MatMar AB | Borlänge | 0 tkr |
| Mats Erik Bäckström Förvaltning AB | Falun | 0 tkr |
| Mattias Augustsson Holding AB | Falun | 0 tkr |
| Mattias Morenius Consulting i Sundborn AB | Sundborn | 0 tkr |
| Mavitiro AB | Falun | 0 tkr |
| Mecastell Stefan Ericson AB | Falun | 0 tkr |
| MeetWork AB | Falun | 0 tkr |
| Megadyptes AB | Falun | 0 tkr |
| Mega-Stocken AB | Stockholm | 0 tkr |
| Mehdi Molana Förvaltningsbolag AB | Falun | 0 tkr |
| Melker Olsson AB | Falun | 0 tkr |
| Mellstrand Holding AB | Falun | 0 tkr |
| Mentera AB | Falun | 0 tkr |
| Mexicana AB | Falun | 0 tkr |
| MHS Innovations AB | Falun | 0 tkr |
| Michael Johannesson AB | Borlänge | 0 tkr |
| Milberg invest AB | Falun | 0 tkr |
| Miljölotsen AB | Svärdsjö | 0 tkr |
| Mimmis Eatery AB | Falun | 0 tkr |
| Mindness AB | Enviken | 0 tkr |
| M.I. Radiologi AB | Falun | 0 tkr |
| M Lövkvist TRP AB | Bjursås | 0 tkr |
| Mometrum AB | Falun | 0 tkr |
| Mondo arkitekter Falun AB | Falun | 0 tkr |