Abbreviations beginning with u

USSIUniversal Synchronous Serial Interface
Computing » Networking

USSIUnderstanding Supplemental Security Income
Miscellaneous » Unclassified

USSIUnione Stampa Sportiva Italiana (Italian: Italian Sports Press Union)
Miscellaneous

USSIUniversal Software Solutions, Inc. (Davison, MI)
Miscellaneous

USSIUtility Sealing Services, Inc.
Miscellaneous

USSIUnited States Scholars Initiative
Regional » States

USSIAUganda Small Scale Industries Association
Academic & Science

USSICUnited States Specialty Insurance Company (Addison, TX)
Business

USSIDUnited States Signal Intelligence Directive
Governmental » US Government

USSIDUnited States Signals Intelligence Directives
Governmental » US Government

USSIDUnited States Signals Intelligence Directorate
Governmental » Military

USSIDUnited States Special Intelligence Directive
Governmental » Military

USSIDUnited States Special Intelligence Directorate
Governmental

USSIDUnited States Signals Intelligence Directive
Miscellaneous » Unclassified

USSISUnited States Signal Intelligence System
Governmental » Military

USSISUnited States Steamboat Inspection Service
Governmental

USSISU S Steamboat Inspection Service
Miscellaneous » Unclassified

USSISUltra Short Suicidal Ideation Scale
Miscellaneous » Unclassified

USSJAUnited States Sport Jujitsu Association (Nitro, WV)
Miscellaneous

USSLUnited States Salinity Laboratory
Academic & Science