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SSISSQL Server Integration Services (Microsoft)
SSISSql Server Integration Services
SSISSchool of Social Sciences and International Studies (Australia)
SSISStructural Statistics for Industry and Services (Organization for Economic Cooperation and Development)
SSISSocial Services Information System (UK)
SSISSurveying and Spatial Information System (Australia)
SSISSpace Station Information System
SSISSultan Sharafuddin Idris Shah
SSISSecurity Screening Information System (various companies)
SSISScanning Surface Inspection System
SSISState Security Investigations Sector (Egyptian Ministry of the Interior)
SSISSales Support and Infrastructure Services
SSISSpecialized Security and Investigation Services (Montreal, Quebec, Canada)