1.
Ushio Hospital
2.
VITAL KSK
3.
Vivavida Medical Life 2007-09-01
4.
Wada Hospital
5.
Wakamoto Pharmaceutical
6.
Wakayama Social Welfare Corporation
7.
Water Agency
8.
Workout
9.
Yamashita Medical Instruments
10.
Yamato Life 1889
11.
Yoseikai Medical Association
12.
Yoshida Seisakusho