| Mikael Broman Invest AB | Själevad | 0 tkr |
| Mikael Green Förvaltning AB | Täby | 0 tkr |
| Mikael Labba Holding AB | Sundsbruk | 0 tkr |
| Mik Con AB | Domsjö | 0 tkr |
| MiLass i Örnsköldsvik AB | Örnsköldsvik | 0 tkr |
| Miljöbyggarna i Sundsvall AB | Matfors | 0 tkr |
| MillaMillaCool AB | Sundsvall | 0 tkr |
| MilleKing AB | Bonässund | 0 tkr |
| Millie Invest AB | Sundsvall | 0 tkr |
| Milly Sleepwear AB | Sundsvall | 0 tkr |
| MIMIR Systems AB | Västra Frölunda | 0 tkr |
| Mindful People AB | Alnö | 0 tkr |
| M Industries Norrland AB | Timrå | 0 tkr |
| Miniology AB | Bonässund | 0 tkr |
| Minkab Holding AB | Sundsvall | 0 tkr |
| MinoDin i Sundsvall AB | Timrå | 0 tkr |
| Miopalmo Artistico AB | Örnsköldsvik | 0 tkr |
| Mittfastigheter 2 AB | Ånge | 0 tkr |
| Mittinfra Entreprenad AB | Njurunda | 0 tkr |
| MittKakel AB | Bergeforsen | 0 tkr |
| Mittkraft AB | Sundsvall | 0 tkr |
| Mittlandia Holding AB | Ånge | 0 tkr |
| Mitt Luno AB | Stöde | 0 tkr |
| Mittprojekt i Västernorrland AB | Alnö | 0 tkr |
| Mjälloms Fisk AB | Mjällom | 0 tkr |
| Mjälloms Invest AB | Mjällom | 0 tkr |
| MJAONE AB | Sundsvall | 0 tkr |
| MJÅ Skog AB | Ramsele | 0 tkr |
| Mjauu MJ AB | Härnösand | 0 tkr |
| MK25 AB | Örnsköldsvik | 0 tkr |
| MKB 63 AB | Sundsvall | 0 tkr |
| MKF Holding AB | Matfors | 0 tkr |
| MKW Machine Tool i Sundsvall AB | Sundsvall | 0 tkr |
| M Lindström Invest i Övik AB | Arnäsvall | 0 tkr |
| MLX Invest AB | Sundsvall | 0 tkr |
| MME Holding AB | Sundsvall | 0 tkr |
| M & M Holding i Sollefteå AB | Sollefteå | 0 tkr |
| MMN North Invest AB | Sundsvall | 0 tkr |
| MM Wiklund/Ulander AB | Kovland | 0 tkr |
| MN & co AB | Alnö | 0 tkr |
| MN Invest Mitt AB | Sundsvall | 0 tkr |
| M. Norberg Förvaltning i Sundsvall AB | Sundsvall | 0 tkr |
| Möbelfastigheter i Vilhelmina AB | Långsele | 0 tkr |
| M Öberg Corporate Finance AB | Sundsvall | 0 tkr |
| Mobinion AB | Umeå | 0 tkr |
| Mobitrax AB | Sundsvall | 0 tkr |
| Moder Arts AB | Husum | 0 tkr |
| Modulgruppen i Norden AB | Alnö | 0 tkr |
| Moflo Kapitalförvaltning AB | Sollefteå | 0 tkr |
| MOGOMO Förvaltning AB | Domsjö | 0 tkr |