About us
We are an independent verification body for environmental information on (construction) products. Our task is to put data to the test – so that ecological decisions can be made on a reliable, traceable, legally compliant, and independent basis.
Following the principle "What you can't measure, you can't manage," we create the foundation for credible environmental data, because a sustainable (construction) economy needs reliable facts.
Manufacturers, planners, auditors, and other stakeholders benefit from our verifications, which meet the highest technical and methodological standards. This is how we ensure: Those who work with our verified data can rely on quality, transparency, and substance.
As an (aspiring) accredited validation body for environmental data according to EN 15804 and future Notified Body for the essential characteristics listed in the declaration of performance regarding the control of the assessment of ecological sustainability according to the Construction Products Regulation (CPR), we guarantee complete independence, confidentiality, and impartiality in all verifications – in accordance with the requirements of ISO/IEC 17029.
Our team
Behind our work stands a dedicated team of seven experts:
Stefan Zwerenz
Managing Director
Marco Muhl
Verifier
Martina Bender
Verifier
Anna Katharina Maute
Sustainability Manager
Marta Standio-Briasco
Sustainability Manager
Felicitas Gebreselassie
Sustainability Manager
Mia Schütt
Working Student
We combine expertise, independence, and a passion for sustainable solutions.

