| Mared Components AB | 561 23 | Huskvarna |
| Masentia AB | 331 44 | Värnamo |
| Maskin AB A. Fransson | 153 92 | HÖLÖ |
| Maskincentrum i Örnsköldsvik AB | 891 55 | Arnäsvall |
| Medeon AB | 205 12 | Malmö |
| Mekana Maskin AB | 703 84 | Örebro |
| Mekoprint A/S | 9530 | Støvring |
| Melin & Carlsson Hydraulic AB | 573 31 | Tranås |
| Metal Work Sverige AB | 235 39 | Vellinge |
| Metalcolour Sverige AB | 372 25 | Ronneby |
| Migatronic Automation | 448 50 | Tollered |
| Migatronic Automation A/S | 9440 | Aabybro |
| Migatronic Svetsmaskiner AB | 448 50 | Tollered |
| MInskaCO2.se | 8000 | Århus |
| Mirit Glas A/S | 2730 | DK-Herlev |
| Modellteknik i Eskilstuna AB | 631 02 | Eskilstuna |
| Moldow A/S | 6670 | Holsted |
| Mölltorps Gjuteri & Mekaniska Verkstad AB | 546 72 | Mölltorp |
| Monitor ERP System AB | 824 26 | Hudiksvall |
| Movomech AB | 291 09 | Kristianstad |
| Mytec Ytbehandling AB | 432 13 | VARBERG |