- Lamborghini
- Lancia
- Land Rover
- LapLink
- Laserliner
- LauraStar
- LAZER
- Le Pan
- Lego
- Legrand
- Leica
- Leica Microsystems
- Leisure
- Lenco
- Lenovo
- Leviton
- Lexibook
- Lexicon
- Lexmark
- Lexus
- LG
- LG Série
- Liebherr
- Life Fitness
- Lifetec
- Lifetime
- LifeTrak
- Lincoln
- Lincoln Electric
- Line 6
- Linear
- Linksys
- Listo
- LOEWE
- Logicom
- LOGICOM-SANYO
- LOGISTY
- Logitech
- LOGMEIN
- Lorex
- Lorus
- Lowrance
- Lux
- Lux Products
- Luxeco
- M-Audio
- M-system
- Mac Allister
- Mackie
- Macrom
- MACROMEDIA
- Magellan
- Magimix
- Maginon