| MagnussonWidén Konsult AB | Stockholm | 0 tkr |
| Magnus Tehler AB | Furusund | 0 tkr |
| Magnus Wikzell Aktiebolag | Vaxholm | 0 tkr |
| MailEffect Sverige AB | Sollentuna | 0 tkr |
| Major Advice AB | Sollentuna | 0 tkr |
| Malchor Holding AB | Sollentuna | 0 tkr |
| M all in management AB | Sollentuna | 0 tkr |
| Malmqvist Sannemo Invest AB | Sollentuna | 0 tkr |
| Malmukks AB | Falun | 0 tkr |
| Malvarosa Holding AB | Järfälla | 0 tkr |
| Mapema Partners AB | Sollentuna | 0 tkr |
| Maratonlöparen Fastigheter AB | Stockholm | 0 tkr |
| Marcus Hedin Holding AB | Sollentuna | 0 tkr |
| Margareta Svensson Förvaltning AB | Sollentuna | 0 tkr |
| Maria Danielsson Konsult AB | Sollentuna | 0 tkr |
| Maria Montessori Institutet AB | Sollentuna | 0 tkr |
| Maria Sahlin Invest AB | Sollentuna | 0 tkr |
| Marikas Redovisning AB | Sollentuna | 0 tkr |
| Markborg i Stockholm Aktiebolag | Hägersten | 0 tkr |
| Market Squared Group AB | Sollentuna | 0 tkr |
| Marknadsrevision International MIStat Aktiebolag | Sollentuna | 0 tkr |
| Markus Cederlund AB | Sollentuna | 0 tkr |
| Martin Kurtsson AB | Sollentuna | 0 tkr |
| Martin Murén förvaltning AB | Sollentuna | 0 tkr |
| Martin Nilsson & Co AB | Sollentuna | 0 tkr |
| Martinos Holding AB | Sollentuna | 0 tkr |
| Martin Palmkvist AB | Sollentuna | 0 tkr |
| Martin Rutberg Konsult AB | Sollentuna | 0 tkr |
| Masbolandet AB | Rättvik | 0 tkr |
| Maskin & Hydraul i Sverige AB | Sollentuna | 0 tkr |
| M.A's Matglada AB | Sollentuna | 0 tkr |
| Mastmontage i Stockholm Aktiebolag | Sollentuna | 0 tkr |
| Matboden Mor & Son AB | Stockholm | 0 tkr |
| Matini Konsult AB | Sollentuna | 0 tkr |
| Mats Andersson Förvaltning AB | Djurås | 0 tkr |
| Mats Henry Norrman Holding AB | Sollentuna | 0 tkr |
| Mats Pettersson Bygginvest i Sollentuna AB | Sollentuna | 0 tkr |
| Mats Teir Konsult AB | Sollentuna | 0 tkr |
| Mats Wernolf Konsult AB | Sollentuna | 0 tkr |
| MÅTT1 AB | Västervik | 0 tkr |
| Mattias Borg & söner AB | Sollentuna | 0 tkr |
| Mattias Jildenhed Konsult AB | Sollentuna | 0 tkr |
| Mattias Sämskar AB | Sollentuna | 0 tkr |
| MBMB Holding AB | Värmdö | 0 tkr |
| MCEM Invest AB | Sollentuna | 0 tkr |
| Mch Consulting AB | Stockholm | 0 tkr |
| MCH Revision Holding AB | Stockholm | 0 tkr |
| MDK Invest AB | Stockholm | 0 tkr |
| Medmakers Sweden AB | Sollentuna | 0 tkr |
| Medoskis Medical AB | Viken | 0 tkr |