TMG
- 1,1,3,3-Tetramethylguanidine
- Cody Ko
- Microsoft Forefront Threat Management Gateway
- Motor glider
- Studio 60 on the Sunset Strip
- TMG (language)
- Tak Matsumoto Group
- Ted Mulry
- Tele München Gruppe
- Telegraaf Media Groep
- Tennessee Meiji Gakuin High School
- Tensiomyography
- The Master Genealogist
- The Militia Group
- The Monitoring Group
- The Motorsports Group
- The Mountain Goats
- Thermal Micrometeoroid Garment
- Thermomechanical generator
- Times Media Group
- Toyota Motorsport GmbH
- TransMontaigne
- Trident Media Guard
- Trimethylgallium
- Trimethylglycine
- Tunisia Monitoring Group
- Têxtil Manuel Gonçalves