| PCI Software GmbH | Bavaria |
| PCIT GmbH | Bavaria |
| PCNotdienst-Berlin.com | Berlin |
| pcom - Internet Dienste e.K. | Baden-Württemberg |
| PConAS GmbH | Hesse |
| PCS AG | North Rhine-Westphalia |
| PCS Strakeljahn GmbH & Co. KG | North Rhine-Westphalia |
| PCS Systemtechnik GmbH | Bavaria |
| PCT IT Servicepartner | |
| PCV Systemhaus GmbH & Co. KG | North Rhine-Westphalia |
| pcvisit Software AG | Saxony |
| PDF Annotator | Bavaria |
| PDF Association e. V. | |
| PDFlib GmbH | Bavaria |
| pdlegde.cloud | |
| PDM Solutions GmbH | |
| pds GmbH | Lower Saxony |
| PDV-Systeme GmbH | Lower Saxony |
| PDV-Systeme Sachsen GmbH | Saxony |
| Pe-Tronic Industrie-Elektronik GmbH | North Rhine-Westphalia |
| Pead Software GmbH | Hesse |
| Peak & Peak GmbH | |
| PEAK electronics GmbH | Baden-Württemberg |
| Peak Solution GmbH | |
| PEAK-System Technik GmbH | Hesse |
| Peakboard GmbH | |
| PeakClicks | |
| Peakwork AG | North Rhine-Westphalia |
| Peakzone GmbH | |
| Peaq Foundation Ltd | |
| Peec AI GmbH | |
| Peers Solutions GmbH | |
| PEGA Elektronik-Vertriebs GmbH | Baden-Württemberg |
| Pegasus Components GmbH | Bavaria |
| Pegasus GmbH | Bavaria |
| Pegasus Optik GmbH | Lower Saxony |
| PEGASUS Werbeagentur GmbH | Saxony-Anhalt |
| Pegasys Computer GmbH | Bavaria |
| Pegtop | Baden-Württemberg |
| pei tel Communications GmbH | Brandenburg |
| PEK-Engineering GbR | Baden-Württemberg |
| Pelikan & Partner | Hamburg |
| PELOBIOTECH GmbH | |
| Pennergame | |
| Penseo GmbH | |
| Penta Fintech GmbH | |
| PentaSoft AG | Bavaria |
| PentixaPharm GmbH | |
| Pentixapharm Holding AG | |
| Pentos AG | Bavaria |