| Mikael Lundgren HR Interim Management AB | Steningehöjden | 0 tkr |
| Mikael Lund Medical Consulting AB | Märsta | 0 tkr |
| Mikael Söderberg Logistik och Bygg AB | Märsta | 0 tkr |
| MikaelWilhelm AB | Rosersberg | 0 tkr |
| Mila Retail Invest AB | Sundbyberg | 0 tkr |
| MIMAIN AB | Sigtuna | 0 tkr |
| Mistma Holding AB | Märsta | 0 tkr |
| Mittandra Invest AB | Märsta | 0 tkr |
| M J B GROUP AB | Märsta | 0 tkr |
| M & J Johansson Holding AB | Bro | 0 tkr |
| MJ Logistik AB | Märsta | 0 tkr |
| M & K Consulting Services AB | Sigtuna | 0 tkr |
| M&M Safety AB | Märsta | 0 tkr |
| Moments of Sweden AB | Märsta | 0 tkr |
| Mountainriver Jonas Forsberg AB | Sigtuna | 0 tkr |
| Move Training Sweden AB | Stockholm | 0 tkr |
| MQ business AB | Märsta | 0 tkr |
| M. Rodhe AB | Märsta | 0 tkr |
| Mr skydd AB | Uppsala | 0 tkr |
| MSL Last Miles AB | Märsta | 0 tkr |
| MTB Sigtuna AB | Sigtuna | 0 tkr |
| MTC Invest AB | Sigtuna | 0 tkr |
| Multi Agent Operating Systems Sweden AB | Arlandastad | 0 tkr |
| Munkholmen Invest AB | Sigtuna | 0 tkr |
| MW Legal AB | Märsta | 0 tkr |
| My Finans Sweden AB | Bromma | 0 tkr |
| Myller Slussen AB | Stockholm | 0 tkr |
| MYTHILI Hälsa AB | Märsta | 0 tkr |
| Nagomi Sushi AB | Lindesberg | 0 tkr |
| NAM Fastigheter AB | Märsta | 0 tkr |
| NaN o DÅ AB | Märsta | 0 tkr |
| Napa Invest AB | Märsta | 0 tkr |
| Naval Sweden Holding AB | Rosersberg | 0 tkr |
| Nedergården Allkonsult AB | Märsta | 0 tkr |
| Nethash AB | Norrtälje | 0 tkr |
| Neuendorf invest AB | Sigtuna | 0 tkr |
| NextMove AB | Märsta | 0 tkr |
| N Fredrikssons Holding AB | Märsta | 0 tkr |
| NGN Holding AB | Södertälje | 0 tkr |
| NHE Incon AB | Sigtuna | 0 tkr |
| NH:s Bilmek i Rosersberg AB | Rosersberg | 0 tkr |
| Niclas Åhrman Holding AB | Märsta | 0 tkr |
| NJMPB Förvaltning AB | Märsta | 0 tkr |
| Nordgren Group AB | Upplands Väsby | 0 tkr |
| Nordic Airport Properties AB | Norrköping | 0 tkr |
| NordicVista AB | Sigtuna | 0 tkr |
| Nordisk Konceptutveckling i Sigtuna AB | Sigtuna | 0 tkr |
| Norkar Städ AB | Märsta | 0 tkr |
| Norra Sigtuna Stad 1 AB | Märsta | 0 tkr |
| Norra Sigtuna Stad 2 AB | Märsta | 0 tkr |