| ebit e Business & IT Entwicklungs GmbH | Upper Austria |
| ebs Computer GmbH & Co. KG | Tyrol |
| ebuero.at | Vienna |
| EC Software GmbH | Salzburg |
| ec3.at Webhosting | Upper Austria |
| echonet communication GmbH | Vienna |
| ECN Entrepreneurship Center Network | |
| Ecomsmart | |
| Econocom Austria GmbH | Vienna |
| ecotech | Upper Austria |
| Edenred Austria GmbH | |
| Eder IT Solutions | Vienna |
| EDIS GmbH | Styria |
| Eduhub Vienna | |
| edv UNION | Vienna |
| EDV-Studio Valentini | |
| EDV-Systeme Braunbock GmbH | Upper Austria |
| Egger Apps | |
| EinzigTech e.U. | |
| Elbacom GmbH | Burgenland |
| Elbe GmbH | Carinthia |
| ElectronicPartner Austria GmbH | Lower Austria |
| Elektricmedia.com | Upper Austria |
| elements.at New Media Solutions GmbH | Salzburg |
| Elevator Lab | |
| Elevator Ventures Beteiligungs GmbH | |
| ELEX Elektronik GmbH | Salzburg |
| Ellwest PCB GmbH | Vienna |
| eMagnetix Online Marketing GmbH | Upper Austria |
| Emarsys | |
| Emotion3D GmbH | |
| Empathy Lab | |
| Emporia Telecom | Upper Austria |
| Enaweg | |
| Enery Development GmbH | |
| enGenes Biotech GmbH | |
| ENIGMA IT-Systeme e.U. | Upper Austria |
| EnliteAI GmbH | |
| Ennstal [IT] GmbH | Styria |
| Enpulsion GmbH | |
| enspired GmbH | |
| Entrepreneurship Avenue | |
| eon.at Sulzberger & Höttl OG | Vienna |
| eoVision GmbH | |
| Epina Softwareentwicklungs- und Vertriebs GmbH | Lower Austria |
| Epiphanic GmbH | |
| epoint | |
| epunkt Internet Recruiting GmbH | Upper Austria |
| Eqqon GmbH | Vienna |
| eQventure GmbH | |