Basic Mapping Support 
Background Measurement Satellite 
Balanced Magnetic Switch 
Broadcast Message Server 
Bristol-Myers Squibb 
Burner Management System 
Background Media Scans 
business management system 
Bachelor of Management Studies 
Bachelor of Marine Science 
Bachelor of Marketing Science 
Bachelor of Mortuary Science 
Backup Management System 
Bad Movie Syndrome 
Bair Middle School 
Balanced Measures System 
Ballistic Missile Ships 
Ballistic Missile Specification 
Ballistic Missile Submarine 
Ballistic Missile Support 
Bandwidth Management Service 
Basic Mechanical Signalling 
Basic Monitor System 
Battery Management System 
Beastmasters 
boron management system 
boron measurement system 
British Micropalaeontological Society 
Broadband Management Server 
Broadcast Message System