| Engineering, Computer, and Mathematical Sciences | Academic & Science |
| European Council for Modelling and Simulation | Business |
| Egyptian Company for Mobile Services | Business |
| Environmental and Construction Management Services, Inc. | Business |
| East Coast Mechanical Services (Brisbane) | Business |
| Enterprise Contract Management System | Business |
| Electronic Customer Management System | Business |
| Enterprise Content Management Systeme | Business Management |
| Enterprise Content Management System | Business Management |
| Electronic Copyright Management Systems | Business Management |
| Ericsson Customer Management System | Business Management |
| Entrust Certificate Management Service | Business Management |
| Environmental Compliance Management System | Business Management |
| East Cary Middle School | Community |
| Eastman Community Music School | Community |
| East Coweta Middle School | Community |
| East Cobb Middle School | Community |
| Effingham County Middle School | Community |
| Emmanuel College Music Society | Community |
| Environmental Charter Middle School | Community |
| Emerald Coast Middle School | Community |
| Early Childhood Management Services | Community |
| Ephraim Curtis Middle School | Community |
| Esperero Canyon Middle School | Community |
| El Cerrito Middle School | Community |
| Elizabeth City Middle School | Community |
| East Central Middle School | Community |
| Edmonson County Middle School | Community |
| Engineering and Construction Management System | General |
| Engineering and Construction Management | General |
| East Carolina Motor Speedway | General |
| Earls Court Motor Show | General |
| Equivalent Consumption Minimization Strategy | General |
| Electronic Contract Management System | Governmental |
| e-Case Management System | Governmental |
| Environmental Compliance Management Services | Governmental |
| Essex County Medical Society | Medical |
| European Conference on Mineralogy and Spectroscopy | Regional |
| Encyclopedia Content Management System | Softwares |
