1.

TOAI

2.

Tocoton

3.

Tohoku University Knowledge Cast

4.

Tokai Kasei Kogyo 1946

5.

Tokan Kogyo 1943

6.

Tokyo Artisan Intelligence

7.

Tokyo Individualized Educational Institute

8.

Tokyo Systems Laboratories 1971

9.

Tokyo Techies

10.

Tomomi Research

11.

Toranoana

12.

torch Inc.