duikschoolmaarssen 4DIVERS Veenendaal IDD Airdiving Scuba-Academie 
Scuba Sports, School & Shop DC Maarsseveenseplassen Aqua Business Centre ESKO Diveworld | duikschoolmaarssen | maarssen |
| 4DIVERS Veenendaal | Veenendaal |
| IDD Airdiving | Vinkeveen |
| Scuba-Academie | Vinkeveen |
| Scuba Sports, School & Shop | Amersfoort |
| DC Maarsseveenseplassen | Tienhoven |
| Aqua Business Centre | Vinkeveen |
| ESKO Diveworld | Zeist |