| Maison Holding AB | Norrköping | 0 tkr |
| Maja Filippa Holding AB | Linköping | 0 tkr |
| Majake AB | Linköping | 0 tkr |
| Majewski Holding AB | Linköping | 0 tkr |
| Majgatan PK Fastigheter Linköping AB | Linköping | 0 tkr |
| Majgatan PK Holding AB | Linköping | 0 tkr |
| MaJoKa Holding AB | Motala | 0 tkr |
| Majstugan AB | Norrköping | 0 tkr |
| MaKa Projektledning AB | Stockholm | 0 tkr |
| Make Sense Consultants AB | Vikingstad | 0 tkr |
| Maki AB | Linköping | 0 tkr |
| Mäklarbyrån Hitta Hem i Sverige AB | Kolmården | 0 tkr |
| Mäklarhusgruppen i Sverige AB | Norrköping | 0 tkr |
| Mäkleriet i Norrköping Holding AB | Norrköping | 0 tkr |
| Makoma AB | Linköping | 0 tkr |
| Makrill Invest AB | Bestorp | 0 tkr |
| M. A. Kroon Vision AB | Söderköping | 0 tkr |
| MALAK Treasury Management AB | Norrköping | 0 tkr |
| Malamare AB | Norrköping | 0 tkr |
| Malek M Invest AB | Norrköping | 0 tkr |
| Måleri-Hantverkarna i Linköping Holding AB | Linköping | 0 tkr |
| Maliba Holding AB | Norrköping | 0 tkr |
| Malin50kan AB | Linköping | 0 tkr |
| Malin Jenvald Förvaltning AB | Linköping | 0 tkr |
| Malma FG AB | Ydre | 0 tkr |
| Malma NG AB | Ydre | 0 tkr |
| Malma SG AB | Ydre | 0 tkr |
| MalmenPower Group AB | Linköping | 0 tkr |
| MalmenPower Service AB | Linköping | 0 tkr |
| Malmqvist Invest AB | Linköping | 0 tkr |
| Malmslätts Gräv Holding AB | Linköping | 0 tkr |
| Malm & Söner AB | Linköping | 0 tkr |
| MÅLO Förvaltning AB | Norrköping | 0 tkr |
| Malva Holding AB | Linköping | 0 tkr |
| Malvea AB | Norrköping | 0 tkr |
| MALWA CONSULTING AB | Norrköping | 0 tkr |
| MA Lyftdon AB | Kimstad | 0 tkr |
| Manda AB | Motala | 0 tkr |
| Mange Ink AB | Linköping | 0 tkr |
| Manheim Bygg och Exploatering AB | Norrköping | 0 tkr |
| Mankan Lyftdon AB | Kolmården | 0 tkr |
| Mannerheim Lindvall holding AB | Söderköping | 0 tkr |
| Mannersons Arkadien AB | Linköping | 0 tkr |
| Mannersons Kompaniet AB | Linköping | 0 tkr |
| Mannersons Nova AB | Linköping | 0 tkr |
| Mannersons Skeppsesplanaden AB | Linköping | 0 tkr |
| Mannersons Stattute AB | Linköping | 0 tkr |
| Mannes Byggmaskiner AB | Åtvidaberg | 0 tkr |
| Mannes Invest AB | Linköping | 0 tkr |
| Måns Rockler AB | Vadstena | 0 tkr |