| Abbreviation | Definition |
|---|---|
| LSW | Lesser SoftWare |
| LSY | Lord, Sullivan, & Yoder |
| LT | Leyland Transmission |
| LT | Lucent Technologies |
| LTA | Leslie Taylor Associates, Inc. |
| LTA | Línea Turística Aereotuy |
| LTA | Llaves Telegraphicas Artisanes |
| LTAA | Lighter Than Air America |
| LTAA | Lighter Than Air America Inc |
| LTB | Lee Travel Bureau |
| LTB | Little Theatre of Bedford |
| LTC | Lanston Type Company |
| LTC | Linamar TRW Corporation |
| LTDC | Lake Taupo Development Company |
| LTDVAR | ltd /var |
| LTEC | Leo Tidwell Excavating Corporation |
| LTF | Leap To Frogans |
| LTG | Let's Talk GSM |
| LTG | Limited Trade Group |
| LTH | Louder Than Hell Productions |