Person profile
Mariusz Syska has been associated with Itstock 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 12 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
Active business scale
Companies wound up
Age
Founded companies
Position vs peers
Among 1049 people (Warszawa, 45-54)
Registry signals
Current and historical roles.
Companies total
5
2 active
Roles total
9
4 active
Years active
13 years and 5 months
First activity
March 20, 2013
Founded the company · Marplus
Latest activity
November 18, 2025
Left the company - Supervisory Body Member · Warszawski KLUB Rotariański
Selected highlights - full list on the Companies tab.
Mariusz Syska is listed in the Polish National Court Register (KRS) as Member / Partner at Itstock Sp. z o.o. 9 roles across 5 entities are on record. Time served on company bodies: 13 years and 5 months.
Mariusz Syska currently holds roles at: Itstock Sp. z o.o., Syska Group Sp. z o.o. The full list, with appointment and termination dates, is on the Companies tab.
The current role is Member / Partner at Itstock Sp. z o.o., taken directly from the KRS register.
Most recent registry entries - full timeline on the History tab.
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The first entry for this person dates from March 20, 2013 — 13 years and 5 months ago.
Data from the Polish Central Register of Beneficial Owners (CRBR).
Companies and people connected to Mariusz Syska - click any node to open its profile.
Total: 5 · Active: 5