 Electronic Networking Association | Technology |
| Enable | Science |
| Energetic Neutral Atoms | Science |
| Enterprise Networking Association | Technology |
| European Networking Associates | Technology |
| Extended Network Addressing | Technology |
| Extractable Nuclear Antigen | Medical |
| Ecole Nationale Dadministation | Common |
| Emergency Nurses Association | Medical |
| Employment Nursing Adviser | Business |
| Enabled | Medical |
| Enalapril | Medical |
| Enalaprilat | Medical |
| Energetic Neutral Atom | Technology |
| Epithelial Neutrophil Activating | Common |
| Epithelial Neutrophil Activating Peptide | Medical |
| Equilibrium Potential | Medical |
| Erythrocytic Nuclear Abnormalities | Medical |
| Ethylene-Bridged Nucleic Acids | Medical |
| European Neuroscience Association | Common |