- Texas A&M University Student Chapter
- Texas A&M University Student Chapter
- Texas A&M University Student Chapter
- Texas Children's Hospital
- Texas Tech University Student Chapter
- Texas Tech University Student Chapter
- Thais Fonseca
- Thales Teixeira
- The Babcock & Wilcox Company
- The Chessie System
- The Egyptian Cabinet
- The Finance Ministry of Kuwait
- The Hertz Corporation
- The Lancester Prize was not awarded in 2009.
- The Ohio State University Student Chapter
- The University of Texas at Austin Student Chapter
- The University of Texas at Dallas Student Chapter
- The Walt Disney Company
- Theo A. Arentze
- Theodore Costy
