| Abbreviation | Definition |
|---|---|
| LUMM | Lumenon Innovative Lightwave Technologies |
| LUMT | Luminant Worldwide Corporation |
| LUND | Lund International Holdings, Inc. |
| LUNR | Lunar Corporation |
| LUXY | Cinemastar Luxury Theatre |
| LUXYZ | Cinemaster Luxury Theatre |
| LVCI | Laser Vision Centers, Inc. |
| LVEL | Level 8 Systems, Inc. |
| LVEN | Las Vegas Entertainment Network, Inc. |
| LVFIQ | Levitz Furniture, Inc. (in bankruptcy) |
| LVLT | Level 3 Communication, Inc. |
| LVMHY | L V M H Moet Hennessy, LTD. |
| LVWD | Liveworld, Inc. |
| LWAY | Lifeway Foods, Inc. |
| LWEI | Lone Wolf Energy, Inc. |
| LWGB.PK | Laidlaw Global Corporation - de-listed |
| LWIN | Leap Wireless International |
| LWNTF | Languageware.Net Company |
| LWNUF | anguageWare.net Company |
| LWNUF | LanguageWare.net Company |