- MATRA
- Matrox
- Mattel
- Max
- MAXDATA
- Maxon
- Maytag
- Mazda
- MB
- McAfee
- McCulloch
- MCL
- MCZ
- Meaco
- Meade
- Mecafer
- Medion
- Meizu
- MELICONI
- Melitta
- MEMUP
- Mercedes-Benz
- Mercury
- Merker
- MERLIN GERIN
- Mesko
- Metabo
- Metronic
- MGE UPS
- Michelin
- Micro Application
- Micro Motion
- Microlife
- Microsoft
- Midland
- Miele
- Miller
- Miller Electric
- Mindray
- Minelab