| Estimating the Circulation and Climate of | Academic & Science |
| Evaluation of Capital Creation Options | Accounts and Finance |
| Earthcare Company | Business |
| Early College and Career Options | Business |
| Early Childhood Career Opportunities | Business |
| East Calhoun Community Organization | Community |
| East Coast Chamber Orchestra | Community |
| East Cooper Community Outreach | Community |
| Excellence in Community Communication and Outreach | Community |
| Essex County Community Organization | Community |
| Emergency Computer Crisis Organization | Computing |
| Early College Credit Opportunities | Educational Institute |
| Expectations Constraints Choices And Outcomes | General |
| Export Control Coordinators Organization | General |
| Eighteenth Century Collections Online | General |
| Eheim Convenient Canister Operation | General |
| Effecting Creative Change in Organizations | General |
| Ethnic Contemporary Classical Orchestras | General |
| Extraction and Composition for Clone and Own | General |
| Every Citizen Counts Organization | General |
| Early Childhood Consultation and Outreach | General |
| Exposure Credibility Conversion and Ongoing | General |
| Efficient Cross Corridor Organisation | General |
| Eastern Caribbean Collective Organisation | General |
| el Carro Economico Colombiano | General |
| Environmentally Conscious Community Oriented | Governmental |
| European Crohn's and Colitis Organisation | Medical |
| Earth Coincidence Control Office | Space Science |
| Extreme Championship Combat Organization | Sports |
