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Kalmer Prostang
Active roles
6
Companies
2
Business start
2016
Active roles
Helkam OÜ
In liquidation
Liquidator
since 06.08.2026
Shareholder
since 01.09.2023
· 50%
Founder
since 11.05.2021
SOLIDPLAN OÜ
Registered
Shareholder
since 01.09.2023
· 100%
Board member
since 28.06.2016
Founder
since 28.06.2016
Shared network
KP
Kalmer Prostang
Helkam OÜ
Heleri Prosta…