Brands – T
- Tanglewood
- Teka
- Terry Gould
- TGI
- Thalia
- The Beatles
- The Beatles Yellow Submarine
- The Blues
- The Cavern Club
- The Guitar Hanger
- The Realist
- The Swipe
- Theodore Presser Company
- Thomastik-Infeld Vienna
- ThumbEez
- Thumbs up for Mastery
- Tie Studio
- Timber Tones
- Timberkit
- Toca Percussion
- Tom & Will
- Tom Crown
- Tombo
- Tonag
- Tourte
- Trevor James & Co
- Trombotine
- Trophy Instruments
- Tuner Fish
- Tycoon Percussion