| Abbreviation | Definition |
|---|---|
| ETCL | Energy Technology Criteria List |
| ETCM | Engineering Technology and Construction Management |
| ETCM | Engineering Technology Construction Management |
| ETCS | Engineering Technology and Computer Science |
| ETCS | Epoch Technology Consulting Services |
| ETCS | Extension Technology and Computer Services |
| ETDC | Educational Technology Development Center |
| ETDE | Energy Technology Data Exchange |
| ETDL | Education Technology Distance Learning |
| ETDL | Educational Technology and Distance Learning |
| ETDP | Exploration Technology Development Program |
| ETDR | experimental technology demonstration reactor |
| ETEC | Energy Technology Engineering Center |
| ETEC | Entropy Technology & Environmental Consultants |
| ETED | Engineering and Technology Education Division |
| ETEI | Engineering/Technology Educators of Indiana |
| ETEP | Educational Technology Endorsement Program |
| ETFA | Emerging Technology and Factory Automation |
| ETG | eTeaching Technology Group |
| ETG | EtherCAT Technology Group |