| eCom-Nord | Mecklenburg-Vorpommern |
| eCommerce Werkstatt GmbH | North Rhine-Westphalia |
| Ecomply GmbH | Bavaria |
| EComradeGroup Andreas Hartmann-Schneevoigt und Christian Werner GbR | Thuringia |
| ECON Application GmbH | |
| Econ Consulting GmbH | North Rhine-Westphalia |
| econ solutions GmbH | |
| Econa AG | |
| Econap | |
| Econsor GmbH | Baden-Württemberg |
| EconStor | |
| Econsult Umwelt Energie Bildung GbR | Baden-Württemberg |
| ecoObs GmbH | Bavaria |
| ECOPLAN Holding GmbH | North Rhine-Westphalia |
| Ecos Office-Center GmbH & Co. KG | |
| Ecosia GmbH | |
| Ecosoft Sachsen GmbH | Saxony |
| Ecosummit | |
| Ecotel Communication AG | North Rhine-Westphalia |
| ECount GmbH | Bavaria |
| Ecovis Webservice GmbH | |
| ecovium GmbH | Baden-Württemberg |
| ecovium Holding GmbH | |
| Ecoworks GmbH | |
| eCozy | Bavaria |
| eCozy GmbH | Bavaria |
| ECT Service GmbH | Lower Saxony |
| edataconsulting Gmbh | |
| EDB Datenbankgesellschaft Hanel mbH | Saxony |
| EDB-Electronic GmbH | Baden-Württemberg |
| Eddi24 GmbH | Hesse |
| Edeco Internet GmbH | North Rhine-Westphalia |
| eden market GmbH | Baden-Württemberg |
| Edgeless Systems | |
| Edgetech Systemhaus GmbH | Bavaria |
| EDIT GmbH | Schleswig-Holstein |
| Edit XML | Bavaria |
| edith.care GmbH | |
| Edkon Games GmbH | |
| eDoc solutions AG | North Rhine-Westphalia |
| EDP Vertriebs GmbH | Baden-Württemberg |
| EDR Projekt GmbH | Bavaria |
| edu-sharing | Thuringia |
| EDU-Werkstatt GmbH | |
| Edurino GmbH | |
| Edust GmbH | Bavaria |
| eduVote | Lower Saxony |
| EDV - Dr. Haller & Co. GmbH | Saxony |
| EDV - Kommunikation Strassner e. K. | Hesse |
| EDV Beratung Dr. Eckardt | Saxony |