Marques
- M3 Mobile
- Mad Catz
- MAG Germany
- Magiboards
- Magic Whiteboard
- Maltron
- MANDIANT
- Manfrotto
- Manhattan
- Marketing
- MARSHALL
- MarWus
- Masterlock
- Matias
- Matrox
- Maxell
- Maximum
- Maxwell House
- M-Cab
- MCAFEE
- MCL
- MEATER
- Media Vision
- MediaRange
- Medigenic
- MEDION
- Melitta
- Mellanox Technologies
- MERCURY
- MERCUSYS
- MERIDIAN
- Metabones
- Metapace
- Method