| Company name | Reg. code |
|---|---|
| HAAPSALU LINN, AIA TN 2 KÜ | 80114657 |
| HAAPSALU LINN, AIA TN 5 KÜ | 80444188 |
| HAAPSALU LINN, AIA TN 2A KÜ | 80438963 |
| HAAPSALU LINN, AIA TN 2B KÜ | 80088210 |
| HAAPSALU LINN, AIA TN 2C KÜ | 80501012 |
| HAAPSALU LINN, AIAVILJA TN 3 KÜ | 80449346 |
| HAAPSALU LINN, AIAVILJA TN 10 KÜ | 80154409 |
| HAAPSALU LINN, AIAVILJA TN 10A KÜ (former name Korteriühistu Aiavilja 10A) | 80230180 |
| HAAPSALU LINN, UUEMÕISA ALEVIK, AIANDI TN 1 KÜ (former name Korteriühistu Aiandi 1) | 80384026 |