| Lime workx | Hesse |
| Limehome GmbH | |
| LimeSurvey GmbH | |
| LimTec GmbH | Bavaria |
| Limx | Hamburg |
| linCK-IT GmbH & Co. KG | Bavaria |
| Lindenbaum GmbH | Baden-Württemberg |
| Lindenvalley GmbH | Bavaria |
| LINDIS Biotech GmbH | |
| Lindner IT UG (haftungsbeschränkt) | |
| Lindqvist Automation GmbH | Baden-Württemberg |
| liNear Gesellschaft für konstruktives Design mbH | North Rhine-Westphalia |
| Linear Software GmbH | Berlin |
| Linearity GmbH | |
| LINET Services GmbH | Lower Saxony |
| LiNetCo GmbH | Hesse |
| Lingoda GmbH | |
| Linguatec Sprachtechnologien GmbH | Bavaria |
| Linie GmbH | North Rhine-Westphalia |
| LINK GmbH | Hesse |
| LINK Mobility GmbH | |
| Link11 GmbH | |
| Link2Web.de | North Rhine-Westphalia |
| LinkeSOFT GmbH | Baden-Württemberg |
| Linkfar Healthcare GmbH | |
| Links2linux.de | Hamburg |
| Linksystem München Gesellschaft für Internet- und Netzwerklösungen mbH | Bavaria |
| LINN Internet Marketing | Saarland |
| Lino Biotech AG | |
| Linotec GmbH | Hesse |
| Linotype | Hesse |
| Linque | |
| Lins Software-Systeme GmbH | Baden-Württemberg |
| LinTech GmbH | Berlin |
| Linux Information Systems AG | Bavaria |
| Linux Professional Institute Central Europe | Hesse |
| Linux Shop | Hesse |
| Linux Systemhaus Schulz | North Rhine-Westphalia |
| Linux und Ich | Baden-Württemberg |
| Linux und Unix User Group Ingolstadt e.V. | Bavaria |
| Linux User Group Augsburg (LUGA) e.V. | Bavaria |
| Linux User Group aus Zweibrücken | Rhineland-Palatinate |
| Linux User Group Dresden | Saxony |
| Linux User Group Esslingen | Baden-Württemberg |
| Linux User Group Gießen | Hesse |
| Linux User Group Krefeld | North Rhine-Westphalia |
| Linux User Group Landau/Pfalz (lug-ld) e.V. | Rhineland-Palatinate |
| Linux User Group Meppen | Lower Saxony |
| Linux User Group Oberhausen Rheinland | North Rhine-Westphalia |
| Linux User Group Osnabrück | Lower Saxony |