EGS
- EGS (program)
- Ecological goods and services
- Edinburgh Geological Society
- Egilsstaðir Airport
- Ehlers–Geren–Sachs theorem
- Emergency gas supply
- Enfield Grammar School
- Enhanced Graphics System
- Enhanced geothermal system
- Epic Games Store
- Ergis (company)
- Ermysted's Grammar School
- European Geophysical Society
- European Graduate School
- Experimental Geodetic Satellite
- Expert Global Solutions
- Exploration Ground Systems
- Keenspot