| Company name | Reg. code |
|---|---|
| MODULAR BUILDING OÜ | 14111499 |
| HARMET MODULAR BUILDING OÜ | 14110643 |
| MODULAR BUILDING WORLDWIDE OÜ kustutatud (former name KALMA HOLDING OÜ) | 10958230 |
| BUILDINFO MODULE OÜ kustutatud | 12671923 |
| MBBL7 HOLDING OÜ (former name Moduland Building OÜ) | 12356021 |