| Company name | Reg. code |
|---|---|
| HAAPSALU LINN, MULLA TN 4 KÜ | 80056983 |
| HAAPSALU LINN, MULLA TN 1 KÜ | 80454488 |
| HAAPSALU LINN, MULLA TN 6 KÜ (former name Mulla 6 korteriühistu) | 80112013 |
| HAAPSALU LINN, MULLA TN 2 KÜ | 80522408 |
| HAAPSALU LINN, MULLA TN 14 KÜ | 80478543 |
| HAAPSALU LINN, MULLA TN 10 KÜ | 80537694 |