Marques
- M3 Mobile
- MAG Germany
- Magiboards
- Magic Whiteboard
- MAGTEK
- Manfrotto
- Manhattan
- MARANTZ
- Marketing
- Martel Instruments
- MarWus
- Masterplug
- MATRIX
- Matrox
- Maxell
- Maximum
- MaxLink
- Maxwell House
- MCAFEE
- MCL
- Media Vision
- MediaRange
- MEDIA-TECH
- MEDION
- MEDISOL
- MEDIUM
- MEGAPOWER
- Melitta
- MEMOREX
- MERCURY
- MERCUSYS
- MERIDIAN
- Metapace
- Mettler