| Schmidt GbR | North Rhine-Westphalia |
| Schmidt GmbH | Bavaria |
| Schmidt Media oHG | |
| Schmittgall Werbeagentur GmbH | Baden-Württemberg |
| Schnakenberg Computer-Systeme | Lower Saxony |
| Schneider Elektronik GmbH & Co. KG | Saxony |
| Schneider Software | Baden-Württemberg |
| schneider-nk.de | North Rhine-Westphalia |
| Schnell im Netz Internet Haßfurt GmbH | Bavaria |
| Schnelle-PC-Hilfe | Saxony |
| Schnitzer GmbH | Baden-Württemberg |
| schoettler Software GmbH | North Rhine-Westphalia |
| Schöffler & Rau Datensysteme | Bavaria |
| schokokeks.org | Baden-Württemberg |
| SCHOKOLADENSEITE.NET Visuelle Kommunikation GmbH | |
| Schollmeier Autofunk e.K. | Baden-Württemberg |
| Scholz & Volkmer | North Rhine-Westphalia |
| scholz.msconsulting GmbH | North Rhine-Westphalia |
| ScholzWebfactory | Schleswig-Holstein |
| Schön | North Rhine-Westphalia |
| Schönbuch Electronic GmbH | Bavaria |
| Schönhofer Sales and Engineering GmbH | North Rhine-Westphalia |
| Schorsch.com | Bavaria |
| SCHÖTEX IT-Solutions GmbH | Bavaria |
| SCHOTT Pharma | |
| Schöttl GmbH | Bavaria |
| Schreiber Electronics | Schleswig-Holstein |
| Schrift & Bild Nienaber GmbH | Lower Saxony |
| Schröder & Wendt GmbH & Co. KG | Schleswig-Holstein |
| Schröder Engineering Team GmbH | Lower Saxony |
| Schröder Media | Saxony |
| Schroeder + Wendt GbR | Saxony-Anhalt |
| Schropp GmbH | Bavaria |
| Schröter-Design.de | North Rhine-Westphalia |
| Schubert & Salzer GmbH | Bavaria |
| Schubert Software & Systeme KG | Bavaria |
| Schubert System Elektronik GmbH | |
| SchubertMedia | Thuringia |
| Schubkraft Digital GmbH | |
| Schukai GmbH | Bavaria |
| Schukat Electronic Vertriebs GmbH | North Rhine-Westphalia |
| schultech GmbH | |
| Schultes Microcomputervertriebs GmbH & Co. KG | North Rhine-Westphalia |
| Schultheiß Software AG | |
| Schulz & Löw Consulting GmbH | Hesse |
| SCHULZ Systemtechnik GmbH | |
| Schulz-Electronic GmbH | Baden-Württemberg |
| Schunk GmbH | |
| Schüttflix Deutschland GmbH | |
| Schüttflix GmbH | |