Logo | Bank Name | Parent Company | Asset Balance (March 2024) | Headquarters |
| MUFG Bank | Mitsubishi UFJ Financial Group | JPY 200.1 Trillion | Marunouchi, Chiyoda-ku, Tokyo |
| Japan Post Bank | Japan Post Holdings | JPY 192.8 Trillion | Ōtemachi, Chiyoda-ku, Tokyo |
| Mizuho Bank | Mizuho Financial Group | JPY 171.4 Trillion | Ōtemachi, Chiyoda-ku, Tokyo |
| Sumitomo Mitsui Banking Corporation | Sumitomo Mitsui Financial Group | JPY 164.8 Trillion | Marunouchi, Chiyoda-ku, Tokyo |
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| The Norinchukin Bank | – | JPY 64.0 Trillion | Ōtemachi, Chiyoda-ku, Tokyo |
| Sumitomo Mitsui Trust Bank | Sumitomo Mitsui Trust Holdings | JPY 37.2 Trillion | Marunouchi, Chiyoda-ku, Tokyo |
| Resona Bank | Reona Holdings | JPY 62.6 Trillion | Bingocho, Chuo-ku, Osaka |
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