| Company Name | Software Titles |
|---|---|
| LoteSoft | 1 |
| Lotus | 15 |
| LPI Level Platforms | 1 |
| LPKF | 1 |
| LShift | 1 |
| LSI | 23 |
| LSI C | 2 |
| LSI Logic | 12 |
| Luc Anselin and The Regents of the University of Illinois | 1 |
| Luca Deri | 1 |
| LucasArts | 10 |
| Lucent Technologies | 1 |
| Lucid8 | 2 |
| Lucida | 1 |
| Lucidlogix Technologies | 1 |
| Lucion Technologies | 1 |
| LuckaSoft | 1 |
| Luidia | 4 |
| Luke Yelavich | 1 |
| LULU Software | 1 |
| Lumenera | 1 |
| Lumens | 3 |
| Lumens Digital Optics | 1 |
| Lumension Security | 4 |
| Lumesoft | 1 |
| Lumigent Technologies | 3 |
| Lumina Decision Systems | 1 |
| LUNAR | 3 |
| Lunarsoft | 1 |
| Lunascape | 1 |
| LunchByte Systems | 1 |
| LUP | 1 |
| Lux Aeterna | 1 |
| Luxand | 1 |
| Luxion ApS | 1 |
| Luxor | 1 |
| Luxriot | 1 |
| Luzius Schneider | 1 |
| LW PS Printer SW | 1 |
| LWD Technology | 1 |
| LXE | 1 |
| LXR | 1 |
| Lyma Design | 1 |
| Lymbix | 1 |
| LynxGate Solutions | 1 |
| Lyrics Plugin | 1 |
| LyX Team | 1 |