Science and Technology Information System - National Science Foundation
Science, Technology & Information Services Division (SAUS)
Scientific & Technical Information Services, Inc. - Information service or system (IID)
Scientific and Technological Information Services (SAUS)
Silicon Target Image Sensor
Space Telescope Imaging Spectrograph
Space Telescope Imaging Spectrometer (SAUS)
Space Telescope Infrared Spectrograph (SAUS)
Specialized Textile Information Service
Stabilized Thermal Imaging System (SAUS)
Sumika Technical Information Service, Inc. - Information service or system (IID)