| Engineering Computing Facility | Academic & Science |
| Educational Computer Facility | Academic & Science |
| Evergreen Coniferous Forest | Academic & Science |
| Error Carried Forward | Academic & Science |
| Electronic Copyright Form | Academic & Science |
| Electronic Claim File | Academic & Science |
| Electronic Claims Files | Academic & Science |
| Electric Crystal Field | Academic & Science |
| Employee Community Fund | Business |
| Excel Chindia Fund | Business |
| Elementally Chlorine Free | Chemistry |
| Elemental Chlorine Free | Chemistry |
| Erindale Christian Fellowship | Community |
| Erie County Fair | Community |
| Employment and Community First | Community |
| Episcopal Church Foundation | Community |
| Eugene Christian Fellowship | Community |
| E Cigarette Forum | Community |
| Electronic Cigarette Forum | Community |
| Enterprise Communications Framework | Computing |
| Echo Frame | Computing |
| E-Commerce Foundation | Computing |
| Enhanced Connectivity Facility | Computing |
| Envelope Controlled Filter | Computing |
| Event Recorder File | Computing |
| End of Complete Frame | Computing |
| Eth Connection Function | Computing |
| Extended Credit Facility | General |
| Eleanor Crook Foundation | General |
| Educational Construction Fund | General |
| English Chess Federation | General |
| Efficient City Farming | General |
| Emergency Coalition Force | General |
| Exceptional Children's Foundation | General |
| Eclipse Communication Framework | General |
| Extra caution followed | General |
| Eiffel Configuration File | General |
| Elastomeric Component Foams | General |
| Extrusion Corner Frame | General |
| Engine Crankcase Fluid | General |
| Electric Cooling Fan | General |
| Engine Cooling Fan | General |
| Eco Fuel | General |
| Electric Concept Fox | General |
| Exotic Car Festival | General |
| Electronic Case Filing | Governmental |
| Electronic Case Files | Governmental |
| Employment Control Framework | Governmental |
| European Council of Forgery | Governmental |
| Employees Community Fund | Governmental |
| Employment Certification Form | Governmental |
| Extended Care Facility | Healthcare |
| Extracellular Fluid | Medical |
| Eye Controlled Focus | Medical |
| Economic Corridor Forum | Messaging |
| Engineering Computer Facility | Military and Defence |
| Elite Combat Force | Military and Defence |
| European Caravan Federation | Regional |
| European Civic Forum | Regional |
| European Coffee Federation | Regional |
| European Charcot Foundation | Regional |
| European Career Fair | Regional |
| European Cyclists' Federation | Regional |
| Enhanced Characteristic Function | Softwares |
| Element Charge Factor | Space Science |
| Equivalency Capability File | Space Science |
| Ein Chilenische Fussballmanschafft | Sports |
