| Registered | Name | Holder | Registrar |
|---|---|---|---|
| 2024-10-03 | sts-highschool.fi | STS Education Group AB | Abion AB |
| 2022-05-05 | stseducation.fi | STS Education Group AB | Abion AB |
| 2013-09-17 | stshighschool.fi | STS Education Group AB | Abion AB |
| 2012-10-31 | sts-education.fi | STS Education Group AB | Abion AB |
| 2006-07-07 | vaihto-oppilas.fi | STS Education Group AB | Abion AB |
| 2006-07-07 | kielimatka.fi | STS Education Group AB | Abion AB |
| 1991-01-01 | sts.fi | STS Education Group AB | Abion AB |