AFS Executive Management
Hein Siemerink
Chief Executive Officer
& Viridian Senior Advisor
Laurens Zonneveld
Board Member &
Viridian Managing Director
Mike Hatert
Managing Director Energy & Viridian Senior Advisor
Tom Zydenbos
Chief Financial Officer
Edward van Berkum
Director IT
Pieter Aartsen
Managing Director Execution & Custody Services
Directors
Marco Bertaccini
Director Risk & Control Group & Energy
Ryan Rudman
Director of Marketing
Willem Scheerens
Head of People & Organisation
Jef Geelen
Carbon Compliance | Biofuels
AFS Management
Kamila van der Pol
Head of Legal, Compliance & Backoffice Energy
Marja Sterringa
Head of Legal & Compliance Group
Viridian Development Team
Martijn van Loon
Head Developer for Viridian
Bernard Fresen
Operational Manager & Product Owner Viridian
Marcel Vrolijk
Lead Developer for MTF
Tim Van der Ham
Viridian Backend Developer
Jelle Monen
Viridian Backend Developer
Anna Romanchenko
Viridian Backend Developer
Rodrigo Goncalves
Viridian Backend Developer
Maria Meziati
Viridian Frontend Developer
Busra Kirnak Goktas
Quality Assurance
René Kestler
Business Analyst
Marius Grootveld
DevOps Engineer
Viridian Front Office Onboarding Team
Valentina Stekovic
Senior Broker, Compliance Carbon Markets | EU & UK ETS
Marco Gezang
Senior Account Manager, Compliance Carbon Markets | EU & UK ETS
Diego de Cuina
Sustainability Advisor
Thijs Burema
Sustainability Advisor, Compliance Carbon Markets | EU & UK ETS
Natalie Hagewood
Sustainability Advisor, Compliance Carbon Markets | EU & UK ETS
Mikita Bantsevich
Sustainability Advisor, Energy Attribute Certificates | Biomethane Eastern Europe
