Manufacturers
- L J Electronics
- Laboratoire Electro Acoustique
- Lafayette
- Lakeshore Industries
- Lambda Electronics Corporation
- Laney
- Leader
- Lear Jet Stereo Inc.
- LeCroy
- LeEco
- Lenovo
- Lettine
- Lexicon
- Lexmark
- LG
- LG Precision
- Liesegang
- Linksys
- Loewe
- Logitech
- Lorenz
- Lowe Electronics Limited
- Lowrey
- Lutron
- Luxman
- Lysco
