| MBW Fastigheter AB | Skellefteå | 0 tkr |
| MBZ Invest AB | Umeå | 0 tkr |
| MCA HOLDING AB | Umeå | 0 tkr |
| MCL Holding AB | Skellefteå | 0 tkr |
| M Consulting Umeå AB | Umeå | 0 tkr |
| MD Biomedical AB | Uppsala | 0 tkr |
| ME34 Invest AB | Skellefteå | 0 tkr |
| Medicinkonsult i Sverige Aktiebolag | Tärnaby | 0 tkr |
| Medicol AB | Skellefteå | 0 tkr |
| Medicta AB | Lövånger | 0 tkr |
| Mediehuset i Umeå Aktiebolag | Umeå | 0 tkr |
| Meditron Hotellinvest AB | Umeå | 0 tkr |
| Medro AB | Umeå | 0 tkr |
| Medtech innovation i Umeå AB | Umeå | 0 tkr |
| Medwill Konsult AB | Umeå | 0 tkr |
| Meendo AB | Umeå | 0 tkr |
| M.E.Eriksson i Umeå AB | Umeå | 0 tkr |
| Megazone i Umeå AB | Umeå | 0 tkr |
| Mekka Holding i Umeå AB | Stockholm | 0 tkr |
| Mela Holding i Umeå AB | Umeå | 0 tkr |
| Mellanbygdens Fastigheter AB | Skellefteå | 0 tkr |
| Melonia Invest AB | Sävar | 0 tkr |
| Mendit i Umeå AB | Umeå | 0 tkr |
| M Engström Invest AB | Skellefteå | 0 tkr |
| Mental Medic 24/7 AB | Kungsbacka | 0 tkr |
| MerLiv i Norr AB | Holmsund | 0 tkr |
| MetaCurUm Biotech AB | Umeå | 0 tkr |
| Metropolis Digital AB | Skellefteå | 0 tkr |
| Metso Outotec Metals Sweden AB | Skellefteå | 0 tkr |
| Mexor Holding AB | Skellefteå | 0 tkr |
| MF Media AB | Umeå | 0 tkr |
| MGGU AB | Skellefteå | 0 tkr |
| MG Larson AB | Röbäck | 0 tkr |
| MG Maskintjänst AB | Sorsele | 0 tkr |
| MGM Holding AB | Skellefteå | 0 tkr |
| M. Granström Aktiebolag | Skellefteå | 0 tkr |
| MGWP Invest AB | Umeå | 0 tkr |
| M Holmberg entreprenad AB | Enköping | 0 tkr |
| M Holmlund Holding AB | Umeå | 0 tkr |
| M. Holmström Holding AB | Skellefteå | 0 tkr |
| MHP 2 i Umeå AB | Umeå | 0 tkr |
| MH Solutions AB | Umeå | 0 tkr |
| MHT Regnér AB | Umeå | 0 tkr |
| Mia Åström AB | Holmsund | 0 tkr |
| Mia Jonsson Restaurang AB | Obbola | 0 tkr |
| Micael Dahlberg AB | Lycksele | 0 tkr |
| MICENGS Trotting AB | Skellefteå | 0 tkr |
| Michael Grönberg Förvaltning AB | Umeå | 0 tkr |
| Michan AB | Umeå | 0 tkr |
| Microprop AB | Umeå | 0 tkr |