Electronic Support Measures 
Electronic Support Measure 
Equipment Support Module 
Electronic Steering Module 
Electronics Support Module 
Experiment Support Module 
Earth System Model 
Elastomeric Shield Material 
Electronic Surveillance Measures 
Electronic Warfare Support Measure 
Earth Systematic Missions 
Electronic Security Measures 
Electronic Warfare Support Measures 
Element and Subnetwork Manager 
Embedded Server Management 
Exchange System Manager 
Experiment Service Module 
Exponential-Series Method 
Extended Subscriber Module 
External Storage Module 
Early Science and Medicine 
Earth Science Museum 
Earth Systems Model 
Eastern Surf Magazine 
Eastman School of Music 
Ecole Spéciale Militaire 
eggshell membrane 
electrocortical stimulation mapping 
Electromagnetic Support Measure 
Electronic Sensor Measures