Frontale U18: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-02-01 | Shunsuke Hayashi | Frontale U18 | Kawasaki Front. | — |
| 2026-02-01 | Noriharu Kan | Frontale U18 | Kawasaki Front. | — |
| 2024-02-01 | Kota Yui | Frontale U18 | Kawasaki Front. | — |
| 2023-04-01 | Noriharu Kan | Frontale Jgd. | Frontale U18 | — |
| 2023-04-01 | Kishin Gokita | Frontale U18 | Nihon Uni | Free |
| 2023-02-01 | Yuto Ozeki | Frontale U18 | Kawasaki Front. | — |
| 2023-02-01 | Yuto Matsunagane | Frontale U18 | Kawasaki Front. | — |
| 2023-02-01 | Kota Takai | Frontale U18 | Kawasaki Front. | — |
| 2021-04-01 | Ryota Kamihashi | Frontale U18 | Waseda Univ. | Free |
| 2020-04-01 | Kota Takai | Frontale Jgd. | Frontale U18 | — |
| 2020-04-01 | Hinata Yamauchi | Frontale U18 | Toin Univ. | Free |
| 2020-02-01 | Ten Miyagi | Frontale U18 | Kawasaki Front. | — |
| 2019-04-01 | Shin Yamada | Frontale U18 | Toin Univ. | Free |
| 2018-04-13 | Taisei Miyashiro | Frontale U18 | Kawasaki Front. | — |
| 2018-04-01 | Yuki Hayasaka | Frontale U18 | Toin Univ. | Free |
| 2018-04-01 | Masaki Murata | Frontale U18 | Without Club | — |
| 2018-04-01 | Daisuke Yokota | Frontale U18 | Without Club | — |
| 2017-02-01 | Ao Tanaka | Frontale U18 | Kawasaki Front. | — |
| 2016-04-01 | Kaoru Mitoma | Frontale U18 | Tsukuba Univ. | Free |
| 2015-02-01 | Koji Miyoshi | Frontale U18 | Kawasaki Front. | — |