Guided Missile Submarine - Navy symbol
Malabo - Equatorial Guinea - Airport symbol (OAG)
Safety Study Group (MCD)
Santa Isabel - Spanish Guinea - Airport symbol (AD)
Scantron Service Group - Commercial firm
Schmeisser & Simpson - NCIC firearms make code (NCIC)
Science Steering Group - NASA
Scientific Software Group - Commercial firm
Scientific Steering Group - Tropical Ocean-Global Atmosphere (USDC)
Scientific Steering Group for WOCE (SAUS)
Scleroderma Support Group (EA)
Search Signal Generator
Second Stage Graphitization (SAUS)
Security Service Guide (SAA)
Seimat - Language code (ETLW)
Senior Savers Guide Publishing, Inc. - Vancouver Stock Exchange symbol
Service Selection Gateway
Settlement Specifications Group - Electric utility company
Ships Service Generator (DOMA)
Shuttle Support Group (MCD)
Signal Support Group (SAUS)
Silenced Sub-machine Gun - Police and security equipment
Single Shot Gun (SAUS)
Single Sideband Generator
Slovak Government Flying Service - FAA designator (FAAC)
Small Signal Gain (IEEE)
Small Single Gain (SAUS)
Society of Saint Gregory - British (DBA)
Software and Solutions Group
Software Support Group (NITA)
Software Systems Group
Solution-Sol-Gel - Materials science
Southern Society of Genealogists (EA)
South Sydney Greens - Political party - Australia
Special Security Group (MCD)
Special Services Group (SAUS)
Special Studies Group - Joint Chiefs of Staff - Military
Special Study Group (SAUS)
Special Support Group - FBI (CINC)
Staff Sergeant - Army (AABC)
Standard Signal Generator (IAA)
Standard Systems Group - Air Force
State Services Group - Information service or system (IID)
Static Shape Graph
Stonehenge Study Group (EA)
Stored Serialization Graph
Strategic Studies Group - Naval War College (DOMA)
Structure Study Group (SAUS)
Submandibular Salivary Gland - A salivary gland inside the lower jaw on either side
Subscriber Switching Grid (IAA)
Subsystem Software Group
Suburban Survival Guide
Superconducting Superheated Granules (SAUS)
Supply Spectrum Generator
Surface Discharge Spark Gap (IAA)
Sweep Signal Generator
Symbolic Stream Generator - Computer science
System Safety Group - Air Force
Learn more about SSG