| Name | In-House Group | Constituency/Area |
|---|---|---|
| ABE Hiroki | LDP | Kyushu Bloc |
| ABE Keishi | JIP | Hyogo 2nd District |
| ABE Toshiko | LDP | Chugoku Bloc |
| ABE Tsukasa | JIP | Tokyo Bloc |
| AISAWA Ichiro | LDP | Okayama 1st District |
| AKABA Kazuyoshi | CRA | Kinki Bloc |
| AKAMA Jiro | LDP | Kanagawa 14th District |
| AKAZAWA Ryosei | LDP | Tottori 2nd District |
| AKIBA Kenya | LDP | Tohoku Bloc |
| ANDO Takao | LDP | Tokyo 28th District |
| AOKI Hitomi | SAN | Kita Kanto Bloc |
| AOYAGI Hitoshi | JIP | Osaka 14th District |
| AOYAMA Shigeharu | LDP | Hyogo 8th District |
| AOYAMA Shuhei | LDP | Aichi 12th District |
| ARITA Yoshifu | CRA | Tohoku Bloc |
| ASADA Masumi | LDP | Kyushu Bloc |
| ASANO Satoshi | DPFP | Ibaraki 5th District |
| ASO Taro | LDP | Fukuoka 8th District |
| AZEMOTO Shogo | LDP | Tokyo 6th District |
| AZUMA Kuniyoshi | LDP | Hokkaido 6th District |
| AZUMA Toru | JIP | Osaka 3rd District |
Notes:
List of the In-House Groups in the House
District: Single-seat constituency
Bloc: Proportional representation area
In-House Group: A group of House Members who engage in joint activities within the House. Usually, a political party forms an in-House group inside the House, but occasionally there are cases where a group is formed by (1) House Members who do not belong to a particular political party, (2) a political party and a House Member or Members who do not belong to any political party, or (3) two or more political parties.