| PlanetHome Group GmbH | |
| PlanetHome Investment AG | |
| PlanetLAN GmbH | North Rhine-Westphalia |
| Planicsware GmbH | Saxony |
| Planiglobe | Schleswig-Holstein |
| Planio | Berlin |
| PlanQC GmbH | |
| Plansysteme Gesellschaft für Softwareentwicklung mbH | Hamburg |
| PLANTA Projektmanagement-Systeme GmbH | Baden-Württemberg |
| PLANTEC GmbH | Bavaria |
| planTEK Heidelberg GmbH | Baden-Württemberg |
| Plantix | |
| PLANWERK 6 websolutions GmbH | North Rhine-Westphalia |
| Planzeit GmbH | North Rhine-Westphalia |
| PlasmidFactory GmbH | |
| Plasticard-ZFT GmbH | Saxony |
| Plastronic Deutschlaender | North Rhine-Westphalia |
| platform3l GmbH | |
| Plath EFT GmbH | Schleswig-Holstein |
| PLATH GmbH | Hamburg |
| Platinbaum GmbH & Co. KG | Rhineland-Palatinate |
| PlatinPower.com GmbH | Hesse |
| Plato AG | Schleswig-Holstein |
| Platoria GmbH | |
| Platri IT | |
| Plattenbrand GmbH | |
| Plavis GmbH | Saxony |
| Playa Games GmbH | Hamburg |
| Playata GmbH | Bavaria |
| Playmunity | |
| PlaytestCloud GmbH | |
| Plazmapunk | |
| Pleasant Software | Baden-Württemberg |
| PleasantSoft GmbH | North Rhine-Westphalia |
| Plenge GmbH | North Rhine-Westphalia |
| PlentySystems GmbH | Hesse |
| plenum AG | Hesse |
| Pliant GmbH | |
| pliXos GmbH | |
| PLS Programmierbare Logik & Systeme GmbH | Saxony |
| PLT engineering GmbH | North Rhine-Westphalia |
| Plug&Paid | |
| Plugsurfing GmbH | |
| plumsoft Systemhaus GmbH | Bavaria |
| Plus-IT GmbH | |
| PLUS-PC UG | Baden-Württemberg |
| Plus1 Webdesign Agentur GbR | Berlin |
| Pluscode GmbH | |
| PlusServer GmbH | North Rhine-Westphalia |
| PLUTEX GmbH | Bremen |