1.
A-style
2.
Active Age 2009
3.
Advanced Medical Care 2006
4.
AI Medical Service
5.
Aikuri
6.
Aino Izumi Social Welfare 1945
7.
AIRS
8.
Aizenkai 1969
9.
Akashi Keisen Welfare Association 1977
10.
Amagasaki Medical Cooperative 1963
11.
AMBICION 2015
12.
Amvis Holdings 2016