Person profile
Marcin Kostera has been associated with Seven Sp. z o.o. since the company was founded and is among its founders. He has stayed on the board and has held a management role for 19 years. This continuity suggests strong trust from the current owners and tangible value he brings to the company.
Management experience
Anchor company
Average tenure per company
Active board load
Profile type
Historical companies
Age
Founded companies
Position vs peers
Among 492 people (Wielkopolskie, 45-54)
Registry signals
Current and historical roles.
Companies total
2
2 active
Roles total
3
3 active
Years active
19 years and 2 months
First activity
February 22, 2007
Founded the company · Seven Spółka z Ograniczoną Odpowiedzialnością
Latest activity
June 20, 2025
Joined the company - Wspólnik · BIG STAR Limited Spółka z Ograniczoną Odpowiedzialnością
Selected highlights - full list on the Companies tab.
Most recent registry entries - full timeline on the History tab.
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Data from the Polish Central Register of Beneficial Owners (CRBR).
Companies and people connected to Marcin Wiesław Kostera - click any node to open its profile.
Total: 2 · Active: 2