Person profile
Marek Marszałkowski has held management roles for 4 years across multiple companies.
Management experience
Average tenure per company
Active board load
Profile type
Active business scale
Historical companies
Age
Founded companies
Position vs peers
Among 428 people (Warszawa, 35-44)
Current and historical roles.
Companies total
4
2 active
Roles total
8
4 active
Years active
4 years and 1 month
First activity
March 17, 2022
Founded the company · JMM Consulting Spółka z Ograniczoną Odpowiedzialnością
Latest activity
February 24, 2026
Founded the company · JMM Building 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 Marek Jan Marszałkowski - click any node to open its profile.
Total: 3 · Active: 3