| Title | CMS Category |
|---|---|
| EGroupware | Groupware |
| Ekklesia360 | Specialized CMS |
| Eleventy | Static Site Generators |
| Elexio | Specialized CMS |
| Elgg | Social Network Solutions |
| Enabley | E-Learning |
| EPESI | Groupware CRM Solutions Enterprise Solutions |
| EpsoCRM | CRM Solutions |
| ERP5 | CRM Solutions Ecommerce Enterprise Solutions |
| ERPNext | CRM Solutions Enterprise Solutions |
| Esker | Enterprise Solutions |
| EverShop | Ecommerce |
| eXo | Groupware Enterprise Solutions |
| Exponent CMS | Traditional CMS |
| Fae CMS | Traditional CMS |
| Fast Edit | Flat CMS |
| Fedena | E-Learning Enterprise Solutions |
| Feindura | Flat CMS |
| Feng Office | Groupware |
| Firebase | App Builders App Frameworks |