Enterprise Service Bus 
Emergency Service Bureau 
Expansion Spring Brake 
Energy Storage Box 
Elastic Storage Buffer 
Electrical Standards Board 
electrical stimulation of the brain 
Electricity Supply Board 
Engineer Support Battalion 
Engineering Services Building 
Essential Switching Box 
European Society of Biomechanics 
European Standardization Board 
Aerosaba 
Earth Sciences Branch 
Economic Stabilization Board 
Educational Standards Board 
Electrical Simulation of the Brain 
Electronic School Book 
Emergency Services Branch 
Emerging Small Business 
Empire Strikes Back 
En route Support Base 
endoscopic sympathetic block 
Engine Storage Building 
Engineer Special Brigade 
Engineering Societies Building 
Engineering Society of Baltimore 
Engineering Society of Buffalo 
Engineering Standards Board