| Mindset sweden 24 AB | Stockholm | 0 tkr |
| Minordan AB | Norrtälje | 0 tkr |
| MJA Bygg & Förvaltning i Roslagen AB | Norrtälje | 0 tkr |
| MLD Bygg AB | Grisslehamn | 0 tkr |
| Mobile Security Shield Scandinavia AB | Gräddö | 0 tkr |
| Mollton Holding AB | Hallstavik | 0 tkr |
| M o L Nylund på Solö AB | Norrtälje | 0 tkr |
| Moppis Norrtälje AB | Norrtälje | 0 tkr |
| MOSAB AB | Sundsvall | 0 tkr |
| Mosebackegruppen AB | Sollentuna | 0 tkr |
| Mr Polish AB | Rimbo | 0 tkr |
| Muraren 7 i Rimbo AB | Rö | 0 tkr |
| Mutun AB | Norrtälje | 0 tkr |
| Nabbo Holding AB | Gräddö | 0 tkr |
| NÅNNI Fastighetsförvaltning AB | Väddö | 0 tkr |
| Näset Rådmansö AB | Norrtälje | 0 tkr |
| Nathalie store AB | Norrtälje | 0 tkr |
| Naturbanken AB | Rö | 0 tkr |
| Nautia AB | Åkersberga | 0 tkr |
| NBO Holding AB | Norrtälje | 0 tkr |
| NBS Villan AB | Norrtälje | 0 tkr |
| NetMove AB | Norrtälje | 0 tkr |
| Next Generation AB | Bålsta | 0 tkr |
| NFP Entreprenad AB | Riala | 0 tkr |
| Niclan AB | Norrtälje | 0 tkr |
| Nidaros Property Partner AB | Bålsta | 0 tkr |
| Nidus Förvaltning AB | Täby | 0 tkr |
| Niklas Larsson EL AB | Herräng | 0 tkr |
| Niron Holding AB | Rimbo | 0 tkr |
| Nisse Två AB | Rimbo | 0 tkr |
| njh AB | Norrtälje | 0 tkr |
| N Markusson Invest i Roslagen AB | Norrtälje | 0 tkr |
| NobleCare AB | Blidö | 0 tkr |
| NOEN Förvaltning AB | Rimbo | 0 tkr |
| NOEN Mark AB | Rimbo | 0 tkr |
| NOLAB AB | Norrtälje | 0 tkr |
| Nolo AB | Norrtälje | 0 tkr |
| Nordic Engineering Partner Holding AB | Västerås | 0 tkr |
| Nordin Trading AB | Märsta | 0 tkr |
| Nordkap Holding AB | Norrtälje | 0 tkr |
| Nordost innovation AB | Väddö | 0 tkr |
| Nordöstra konsult & förvaltning AB | Norrtälje | 0 tkr |
| Nordrona Fastighets AB | Norrtälje | 0 tkr |
| Nordros AB | Hallstavik | 0 tkr |
| Norrköp i Norrtälje Förvaltning AB | Norrtälje | 0 tkr |
| Norrtälje Advokatbyrå AB | Stockholm | 0 tkr |
| Norrtälje A Fastigheter AB | Norrtälje | 0 tkr |
| Norrtälje Bilpool Logistik AB | Norrtälje | 0 tkr |
| Norrtälje Datasystem Aktiebolag | Norrtälje | 0 tkr |
| Norrtälje Ekonomibyrå AB | Lidingö | 0 tkr |