| Lycon Engineering Aktiebolag | Enköping | 0 tkr |
| LYDH Holding AB | Enköping | 0 tkr |
| LYM Förvaltning AB | Uppsala | 0 tkr |
| Lyrans Resursskola AB | Stockholm | 0 tkr |
| Lyrenäs Vård och Konsult AB | Uppsala | 0 tkr |
| LZ Equity HoldCo 1 AB | Stockholm | 0 tkr |
| LZ Styrelseresurs AB | Bålsta | 0 tkr |
| M12 Mark och Villa AB | Grillby | 0 tkr |
| M15Q AB | Östhammar | 0 tkr |
| m2 Development AB | Hägersten | 0 tkr |
| M3C universal AB | Uppsala | 0 tkr |
| M 90 Clothing and Apparel Sweden AB | Uppsala | 0 tkr |
| MAAI Holding AB | Rimbo | 0 tkr |
| MaC Magdeburg AB | Uppsala | 0 tkr |
| Macrijari Aktiebolag | Uppsala | 0 tkr |
| Madean AB | Uppsala | 0 tkr |
| Made by Alex AB | Uppsala | 0 tkr |
| MADE Holding AB | Uppsala | 0 tkr |
| Madeleine & Peter Andersson Aktiebolag | Bälinge | 0 tkr |
| MAER holding AB | Uppsala | 0 tkr |
| MA Förvaltning Uppsala AB | Uppsala | 0 tkr |
| Magdum Holding AB | Uppsala | 0 tkr |
| M. Agic Aktiebolag | Uppsala | 0 tkr |
| Magical Moon Rabbit AB | Bälinge | 0 tkr |
| Magiola Consulting AB | Uppsala | 0 tkr |
| Magno Art Aktiebolag | Bålsta | 0 tkr |
| Magnodek AB | Uppsala | 0 tkr |
| Magnus Alm Utveckling AB | Enköping | 0 tkr |
| Magnus Bäckstrand AB | Knivsta | 0 tkr |
| Magnus Hartwig Holding AB | Uppsala | 0 tkr |
| Magnus Johanson Processteknik Aktiebolag | Karlholmsbruk | 0 tkr |
| Magnus Jonsing AB | Uppsala | 0 tkr |
| Magnus Lindén Holding AB | Vattholma | 0 tkr |
| Magnus Lind Gåsbacken AB | Enköping | 0 tkr |
| Magnus Lind i mälardalen AB | Enköping | 0 tkr |
| Magnus Norgren Investment AB | Uppsala | 0 tkr |
| Magnus Rattfeldt AB | Uppsala | 0 tkr |
| Magnus Sjöholm AB | Enköping | 0 tkr |
| Magnus Thor Holding AB | Storvreta | 0 tkr |
| Magnus Thörn AB | Uppsala | 0 tkr |
| Magström AB | Uppsala | 0 tkr |
| Magto AB | Uppsala | 0 tkr |
| Mahayana AB | Uppsala | 0 tkr |
| Mahogny AB | Uppsala | 0 tkr |
| MaishaBit AB | Uppsala | 0 tkr |
| MA IT-Consulting AB | Enköping | 0 tkr |
| MAJARV Holding AB | Uppsala | 0 tkr |
| Majean AB | Knutby | 0 tkr |
| Majid trading AB | Norsborg | 0 tkr |
| Majiknet Consulting AB | Uppsala | 0 tkr |