Our team

sustainabill is an interdisciplinary team. Passionate about sustainability, we strive to find technological solutions for the implementation and management of sustainable supply chains.


Klaus Wiesen
Co-Founder and CEO
Klaus takes care of business development, stakeholder communicati, and client projects. Before co-founding sustainabill, he was a team leader at the Wuppertal Institute, a leading sustainability think tank.
Christoph Wiesen
Co-Founder and CPO
Christoph is the Chief Product Owner and responsible for continuous platform development. He looks back on eight years of experience as an IT consultant in business intelligence and has a master's degree in computer science.
Dr. Thorsten Merten
Co-Founder and CTO
Thorsten makes sure that our IT infrastructure is in excellent shape and that we use the newest technology. He received his Ph.D. in software engineering and data mining at the University of Heidelberg and realized data-driven software projects.

Core Team

Ilja Lange
Sustainability Implementation Manager
Ilja helps our clients to implement the sustainabill platform and to increase transparency towards the upstream supply chain. He is a French-German national with a background in Chemistry and Natural Resource Management.
Miriam Gogel
Head of Sales and Customer Relationships
Miriam is responsible for sustainable supply chain solutions within our cloud platform. Prior to joining sustainabill, she worked for PwC in sustainability consulting and auditing as well as business development.
Samantha Mack
Sustainability Engagement Managerin
Samantha shares German and American nationality and has a bachelor's degree in business. Her passion for sustainability and awareness for social development help her understand our customers’ needs.


Dr. Markus Werner
Markus is Co-Founder of the software company TriaGnoSys he led as Managing Director until 2016. He coordinated the EU research project myEcoCost. He brings with him the vision of a largely automated and dynamic-adaptive sustainability assessment.
Willem Bulthuis
As a member of the executive board, CTO and global sales director in high tech industry Willem gained great experience to act as consultant and business angel today. With sustainabill he follows his conviction that transparent supply chains are essential for successful business.

Our investors

P_Lieferketten sichtbar machen (GLS)