LanTech
Larus
LCN
Leach
Ledalite
Lenox
Leviton
Leviton (Telecom)
Leviton Voice and Data
Lightolier
Lite Energy
Lithonia
Locknetics
Ludlow Textiles
Lumark Lighting
Lucent Technologies
Lumark Lighting
Lumec
Lumiere
Lutron Electronics
Lynn Electronics