LJU
Lovato
Luetze
M2I
Mayser
Megatron
Mennekes
Mersen
Merten (Schneider Electric)
Mesomatic
Metron
Metz Connect
Michael Riedel
Michael Riedel Transformatorenbau
Microelettrica Scientifica
Misumi
Miunske
Moeller (Eaton)
Molex
Multi-Contact (Stäubli)
Murrplastik
Anderson-Negele
New Elfin
Nireco
Noris
Odu
OEZ
Omron
Orion Instruments
Pantron
