| MaXrent AB | Stockholm | 0 tkr |
| MBC Holding i Solna AB | Solna | 0 tkr |
| MC-Mentorial Consulting AB | Sundbyberg | 0 tkr |
| MDR management AB | Sundbyberg | 0 tkr |
| MD Service AB | Sundbyberg | 0 tkr |
| MEDENSIT AB | Sundbyberg | 0 tkr |
| Medicare Rana AB | Sundbyberg | 0 tkr |
| Medic Progress i Sundbyberg AB | Bollnäs | 0 tkr |
| Medisundelius AB | Sundbyberg | 0 tkr |
| MedRose AB | Sundbyberg | 0 tkr |
| Medveta AB | Solna | 0 tkr |
| Mejegård Invest AB | Sundbyberg | 0 tkr |
| Mejegård Invest II AB | Sundbyberg | 0 tkr |
| Menaf Sweden AB | Sundbyberg | 0 tkr |
| Metric Insights AB | Sundbyberg | 0 tkr |
| MF Fastighets Holding AB | Sollentuna | 0 tkr |
| MFSD Technology AB | Sundbyberg | 0 tkr |
| M & G Snabbtvätt AB | Stockholm | 0 tkr |
| MIA Property group AB | Sundbyberg | 0 tkr |
| Michael Kåa Karlsson Holding AB | Limhamn | 0 tkr |
| micjonss IT AB | Vega | 0 tkr |
| Mikael Allerborg AB | Sundbyberg | 0 tkr |
| Mikael Nord Invest AB | Sundbyberg | 0 tkr |
| Mikael Trana Holding AB | Sundbyberg | 0 tkr |
| Mikanext AB | Sundbyberg | 0 tkr |
| Mikron Försäljnings Aktiebolag | Sundbyberg | 0 tkr |
| Millionlight Invest AB | Umeå | 0 tkr |
| Minka Bygg och Utemiljö AB | Sundbyberg | 0 tkr |
| Minneberg Förvaltning Aktiebolag | Bålsta | 0 tkr |
| Minter Consulting AB | Ekerö | 0 tkr |
| Mirasta Consulting AB | Sundbyberg | 0 tkr |
| MJP Consulting AB | Sundbyberg | 0 tkr |
| M&M Ngon AB | Sundbyberg | 0 tkr |
| Moa Linette AB | Täby | 0 tkr |
| Möckeln Invest AB | Stockholm | 0 tkr |
| Modava Holding AB | Sundbyberg | 0 tkr |
| Modulhus 5 Fastighetsutveckling AB | Sundbyberg | 0 tkr |
| Modulhus 8-9 Fastighetsutveckling AB | Sundbyberg | 0 tkr |
| MoJo Ventures AB | Sundbyberg | 0 tkr |
| Money Printer Go Brrr AB | Stockholm | 0 tkr |
| Monica Höglind AB | Sundbyberg | 0 tkr |
| MPW Group AB | Sundbyberg | 0 tkr |
| MRN Renovest AB | Solna | 0 tkr |
| MSE group AB | Farsta | 0 tkr |
| MSR Holding AB | Bromma | 0 tkr |
| Muhle Aktiebolag | Sundbyberg | 0 tkr |
| Museiplanet DC 3:an Aktiebolag | Norrtälje | 0 tkr |
| Mutekatsu budo-wellness AB | Stockholm | 0 tkr |
| MyCall AB | Sundbyberg | 0 tkr |
| NA Music Rights AB | Stockholm | 0 tkr |