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The Board

The GSA was founded in 2019 by seven individuals who have combined their forces to establish the alliance. From a digital signage perspective, OnTech, Jooku, ScreenCom, 4infinity and EWQ have been working together with the rest of the board to make the GS-Alliance possible.


Mark Ossel


Board member DVC SIGN, VP NES Cooperation USA/ NL

Bastiaan Amsing


CEO ScreenCom, Co-owner PuurIDee NL

Tamara Witkamp

Secretary director

Operational director

Board members

Loïc Albenque

Board member

Associé chez OnTech, France.

Greet Verellen

Board member

Chief Executive Officer – Co Founder at 4infinity Antwerp, Belgium.

William Poku

Board member

CBO Jooku Ltd. London, United Kingdom

Mikael Krogius

Board member

CTO EWQ zone, Director strategy Zymr Inc. Nordics/ USA, Europe & India