What does WSI stand for?

Wackenhut Security, Inc. (SAUS)

Wafer Scale Integration (SAUS)

Wafer-Scale Integration - Microelectronics

WaferScale Integration, Inc.

Waingapu - Sumba Island - Seismograph station code, US Geological Survey (SEIS)

War Service Indefinite

War-Supporting Industry

Washington Scientific Industries, Inc. (EFIS)

Waste Stream Identification (SAUS)

Water Safety Instructor - Red Cross

Water Separometer Index (SAUS)

Water Ski Industry Association (EA)

Water Solubility Index - Analytical chemistry

Water Stability Index - Agronomy

Water Supply, Inc. - Commercial firm

Weapon System Integration (MCD)

Weather Service International Corp. (IID)

Weather Services International Corp. - Information service or system (IID)

Welfare State International - Performance group - British

Western Service, Inc. (EFIS)

Weston Service, Inc. (EFIS)

Wetland Science Institute - Natural Resources Conservation Service (RCD)

Whole Sky Imager (SAUS)

Wide Scale Integration (SAUS)

Wind Speed Indicator

Wind Spirit Air, Inc. - FAA designator (FAAC)

Wireless Signalling Instruction (SAUS)

Workstation Interface (SAUS)

World Synoptic Interval

Writers and Scholars International - British (EAIO)

Written Scheme of Investigation - Project design for archaeological investigation (BAJR)

WSI Corporation

Wusi - Language code (ETLW)