| Martinbolaget AB | Österskär | 0 tkr |
| Martin Helgesson AB | Åkersberga | 0 tkr |
| Martin Marten holding AB | Åkersberga | 0 tkr |
| Mats Eriksson Holding AB | Täby | 0 tkr |
| Maximised Sweden AB | Åkersberga | 0 tkr |
| Maximon Sales Invest AB | Norrtälje | 0 tkr |
| Maxovations AB | Åkersberga | 0 tkr |
| MCB Invest AB | Österskär | 0 tkr |
| MCM L DVI AB | Åkersberga | 0 tkr |
| MD Sweden AB | Åkersberga | 0 tkr |
| MedEthics Stockholm AB | Ljusterö | 0 tkr |
| Meja och Iris AB | Åkersberga | 0 tkr |
| MELE INVEST AB | Åkersberga | 0 tkr |
| Menir AB | Stockholm | 0 tkr |
| MERRY AB | Åkersberga | 0 tkr |
| METAFORA KONSULT AB | Åkersberga | 0 tkr |
| MF Brokerage AB | Åkersberga | 0 tkr |
| MG 4 Consulting AB | Vallentuna | 0 tkr |
| MGO Hjelmare IT Consulting AB | Åkersberga | 0 tkr |
| Miago Entreprenad AB | Vällingby | 0 tkr |
| Mia & Thomas Investments AB | Täby | 0 tkr |
| MicroShip Aktiebolag | Österskär | 0 tkr |
| Mi & El taxi AB | Åkersberga | 0 tkr |
| Mikael Almgren Trafik & Förvaltning Aktiebolag | Åkersberga | 0 tkr |
| Mikael Ekstrands Blommor AB | Vreta Kloster | 0 tkr |
| Mill Meadow AB | Åkersberga | 0 tkr |
| Mirelina Invest AB | Åkersberga | 0 tkr |
| Mission Bay AB | Åkersberga | 0 tkr |
| Mixtur Sweden AB | Åkersberga | 0 tkr |
| MJ AccountOnline Redovisning AB | Åkersberga | 0 tkr |
| MJ Air Management AB | Stockholm | 0 tkr |
| MK Jakt, Fiske & Fritid Holding AB | Åkersberga | 0 tkr |
| MK Roslagsservice AB | Åkersberga | 0 tkr |
| M M Projektresurs AB | Åkersberga | 0 tkr |
| MNR Revision Holding AB | Åkersberga | 0 tkr |
| Moa Maria Herrgard AB | Vallentuna | 0 tkr |
| MokuHyou AB | Österskär | 0 tkr |
| MONITOR Industri i Åkersberga AB | Åkersberga | 0 tkr |
| Monsky Export AB | Stockholm | 0 tkr |
| Moreishness AB | Åkersberga | 0 tkr |
| MRU Sales AB | Åkersberga | 0 tkr |
| M. Sandvik Gruppen AB | Åkersberga | 0 tkr |
| MSJ Futurum AB | Åkersberga | 0 tkr |
| MSJÖ Invest AB | Åkersberga | 0 tkr |
| MSPN Konsult AB | Åkersberga | 0 tkr |
| Mundissimo AB | Österskär | 0 tkr |
| Murbryggan Holding AB | Åkersberga | 0 tkr |
| Muzzme AB | Åkersberga | 0 tkr |
| MXA Holding AB | Vallentuna | 0 tkr |
| MXA Rental AB | Vallentuna | 0 tkr |