| Navn | Postnummer | By |
|---|---|---|
| Maskinagenten AS | 1859 | Slitu |
| MECHMAN AS | 4100 | Jørpeland |
| Mekoprint A/S | 9530 | Støvring |
| Metabo Norge AS | 3241 | Sandefjord |
| Metallproduksjon AS | 4033 | STAVANGER |
| Miko Marine AS | 1366 | Lysaker |
| Mirit-Glas A/S | 2730 | Herlev |
| Mitsubishi Electric Factory Automation | 3019 | Drammen |
| Monitor ERP System | 0279 | Oslo |
| Morten Authen AS | 1852 | Mysen |
| Murrelektronik AS | 9000 | Aalborg |
| Møllerodden AS | 5563 | Førresfjorden |