- TTC
- TTS
- TTS 火子ちゃんコンロ
- TUF
- TUNEWEAR
- TURN ME ON
- TURNED K
- TURTLE BEACH
- TUTUYO
- TWINKLE（COMET）
- TwinMOS
- TWISTURA
- Twoal
- Tyan
- TYCKA
- UAC
- UCC
- UCC キューリグ
- UCC ドリップポッド
- UCC ペリカ
- UCHINO Re:Luxe
- UCO
- Udea ef
- UDG
- UENO-mono
- UESUGI
- uFit
- UGREEN
- ulefone
- Ulike
- ULT POWER SOUND
- UMAX
- Umbra
- UMIDIGI
- Uncommon
- UNI-PEX
- UNiCASE
- UNiCASE BLUE LABEL
- uniform experiment
- UNION BINDING