| Pluvion GmbH | |
| pmr software GmbH | |
| PN Software | Lower Saxony |
| Pockethernet | |
| Pockethost GmbH | |
| podcaster.de | |
| Podigee GmbH | |
| POE | North Rhine-Westphalia |
| Poet AG | Baden-Württemberg |
| Poets Computertechnik | Lower Saxony |
| POG Präzisionsoptik Gera GmbH | Thuringia |
| Pohl Softwear GmbH | Bavaria |
| POINT Informationsverarbeitung und Consulting GmbH & Co. KG | |
| Point Nine Management GmbH | |
| PoINT Software & Systems GmbH | North Rhine-Westphalia |
| Pointcom GmbH | Baden-Württemberg |
| Pointsquare GmbH | North Rhine-Westphalia |
| Polaris Space Ventures GmbH | |
| Policum Berlin MVZ GmbH | |
| PolyAn | |
| Polyplanet GmbH | |
| PolyQuant GmbH | |
| Polytec GmbH | |
| Polyteia GmbH | |
| POM Prof. Tempelmeier GmbH | North Rhine-Westphalia |
| Pomfort GmbH | Bavaria |
| PONS Langenscheidt GmbH | |
| PONTE GmbH | Bavaria |
| PONTON GmbH | Hamburg |
| Pop Rocket Studios GmbH | Hamburg |
| PORESY Retail GmbH | North Rhine-Westphalia |
| Porsche Consulting GmbH | Baden-Württemberg |
| Porsche Ventures | |
| Portagon GmbH | |
| Portal 2 | Berlin |
| Portal Systems AG | |
| portalZINE NMN | Lower Saxony |
| Pörtner Consulting | |
| PORTOLAN Commerce Solutions GmbH | Baden-Württemberg |
| PORTRANET GmbH | Bavaria |
| portrino GmbH | |
| Portunity GmbH | North Rhine-Westphalia |
| Posas GmbH | |
| PosBill GmbH | Rhineland-Palatinate |
| POSbote.eu | Bavaria |
| POSdirect GastroSysteme | Rhineland-Palatinate |
| Position One GmbH | Hamburg |
| Positiv Multimedia GmbH | Rhineland-Palatinate |
| POSpulse GmbH | |
| Possehl Electronics | |