TTSI

AcronymDefinition
TTSITotal Transcription Solutions, Inc. (est. 2001; Quezon City, Philippines)
TTSITrail Termination Source Identifier
TTSIToshiba Technical Services International (Japan)
TTSIText to Speech Interface
TTSITravelling to School Initiative (UK)
TTSIThyrotroph T4 Sensitivity Index (pituitary-thyroid diagnostics)
TTSIThorn Transit Systems International, Ltd. (UK)
TTSITandem Telecommunication Systems Inc.
TTSITaxpayer Treatment Service Improvement