| Morby Utveckling 2 AB | Knivsta | 0 tkr |
| Morby Utveckling AB | Knivsta | 0 tkr |
| MOREINX AB | Enköping | 0 tkr |
| Morel Holding AB | Uppsala | 0 tkr |
| More of Kregga AB | Bålsta | 0 tkr |
| Morfologiska laboratoriet i Uppsala Aktiebolag | Uppsala | 0 tkr |
| Morgongåva Bostäder AB | Heby | 0 tkr |
| Morgongåva Utveckling AB | Heby | 0 tkr |
| Morgongåva Veterinärklinik AB | Morgongåva | 0 tkr |
| Mormor Glas Holding AB | Enköping | 0 tkr |
| Morning Oats AB | Danderyd | 0 tkr |
| Morosini Civital AB | Uppsala | 0 tkr |
| Morris Advisory AB | Uppsala | 0 tkr |
| Mosell Ink AB | Östhammar | 0 tkr |
| Moström Flight Support AB | Uppsala | 0 tkr |
| Motorp AB | Östhammar | 0 tkr |
| Moued Invest AB | Uppsala | 0 tkr |
| MOUNTAINSTREAM TRADING AB | Älvkarleby | 0 tkr |
| Moussan Holding AB | Uppsala | 0 tkr |
| Moustaghni Holding AB | Morgongåva | 0 tkr |
| Movet AB | Stockholm | 0 tkr |
| MoveWise Consulting AB | Uppsala | 0 tkr |
| Moviken Juridik AB | Uppsala | 0 tkr |
| Moya Investments AB | Knivsta | 0 tkr |
| MPA Förvaltning AB | Bålsta | 0 tkr |
| M. Pettersson Handel Aktiebolag | Öregrund | 0 tkr |
| MPVA Invest AB | Uppsala | 0 tkr |
| MRB Invest AB | Bålsta | 0 tkr |
| MRCB Holding AB | Uppsala | 0 tkr |
| Mr Grehn Consulting AB | Uppsala | 0 tkr |
| MR Lund Holding AB | Enköping | 0 tkr |
| MRS Transport AB | Västerfärnebo | 0 tkr |
| MR SWE HOLDING AB | Vänge | 0 tkr |
| MSBM Holding AB | Uppsala | 0 tkr |
| MS Hårby AB | Ekolsund | 0 tkr |
| MT Business & Management AB | Bålsta | 0 tkr |
| MTL HOLDING AB | Fjärdhundra | 0 tkr |
| M&T Säkerhet AB | Bålsta | 0 tkr |
| MTXTM Holding AB | Uppsala | 0 tkr |
| Mucocry Medical AB | Uppsala | 0 tkr |
| Mukooza Corporate Group AB | Uppsala | 0 tkr |
| Murabaha AB | Uppsala | 0 tkr |
| Murat Invest AB | Uppsala | 0 tkr |
| Muréngatan Parkeringsförvaltning AB | Uppsala | 0 tkr |
| MURV Fair Business AB | Uppsala | 0 tkr |
| MVGrip AB | Enköping | 0 tkr |
| MVN Consulting AB | Uppsala | 0 tkr |
| M Wallsten AB | Uppsala | 0 tkr |
| M Westberg Invest AB | Enköping | 0 tkr |
| M.Win AB | Angered | 0 tkr |