| Company name | Reg. code |
|---|---|
| STROIMARK OÜ | 17469238 |
| STROHMART OÜ (former name K.Strohm Desing OÜ) | 14517563 |
| STROIMAKS OÜ | 17243008 |
| STREMARK OÜ | 12100480 |
| STROMAR GRUPP OÜ | 11316446 |
| PIKKSILM MEEDIA OÜ (former name STRANMARK OÜ) | 12721124 |
| TREIMARK OÜ (former name Hexatec OÜ) | 12087561 |
| TRIMARK OÜ | 12139246 |
| STORYMARK BRANDS OÜ | 17348233 |
| TRIMARK RAKENNUS OÜ | 11958893 |