ADO '20 (Tweede Divisie): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-07-01 | Player | Ajax Amateurs | ADO '20 | Free |
| 2025-01-05 | Ian Beelen | Spakenburg | ADO '20 | Loan |
| 2024-07-01 | Terence Groothusen | Sportlust '46 | ADO '20 | Free |
| 2024-07-01 | Tom Carbaat | Koninklijke HFC | ADO '20 | Free |
| 2024-07-01 | Jonathan Richard | ODIN '59 | ADO '20 | Free |
| 2024-07-01 | Jesper de Vré | Sliedrecht | ADO '20 | Free |
| 2024-07-01 | Player | ADO '20 | Ajax Amateurs | Free |
| 2024-07-01 | Daan Boerlage | ADO '20 | Den Hoorn | Free |
| 2024-07-01 | Milan Klopper | ADO '20 | AFC | Free |
| 2024-07-01 | Maurizio Brenna | ADO '20 | Katwijk | Free |
| 2024-07-01 | Ian Beelen | ADO '20 | Spakenburg | Free |
| 2024-07-01 | Milan Zonneveld | ADO '20 | Quick Boys | Free |
| 2023-07-01 | Player | OFC Oostzaan | ADO '20 | Free |
| 2023-07-01 | Player | OFC Oostzaan | ADO '20 | Free |
| 2023-07-01 | Denzel Prijor | OFC Oostzaan | ADO '20 | Free |
| 2023-07-01 | Ruben Doesburg | ADO '20 | Katwijk | Free |
| 2023-07-01 | Player | ADO '20 | DEM | Free |
| 2023-07-01 | Player | ADO '20 | Kolping Boys | Free |
| 2022-07-01 | Milan Zonneveld | VELO | ADO '20 | Free |
| 2022-07-01 | Player | Kolping Boys | ADO '20 | Free |