By customer
- ThyssenKrupp Electrical Steel
- TIAA CREF
- Tieto
- T-Mobile
- Top 5 U.S. Transportation and Logistics Company
- TOP-TOY
- Toshiba Europe
- Tracking World
- Tradition
- Transaction processing company
- Translational Genomics Research Institute (TGen)
- Travis County Tax Office
- Trident Marketing
- TRI-WEST, Ltd
- TRUMPF
- Tube Lines
- TUI Deutschland
- TUI Group AG
- Tulane University
- Turner Industries
- Twin Rivers Unified School District
- Two government-run insurance compensation providers
- Tyler, Texas Police Department
- TZM Informatique
