Dr Stefanie Siebert
Executive Director
T. 0049 (0) 234 4389447
Email: siebert(at)compostnetwork.info
Stefanie Siebert, born in 1967 in Germany, joined the European Compost Network ECN e.V. in 2010 as Executive Director for Quality Assurance and Communication. Since 2012 she is appointed as General Executive Director of ECN.
Stefanie is working since more than 10 years in the field of biowaste management and worked for the German Association for Humus and Soil Substrates (VHE e.V.) and the German Quality Assurance Organization for Compost (BGK e.V.). She is a soil scientist and since 1998 she holds a degree in natural sciences of the Ruhr-University of Bochum. She speaks German, English and French.
Steffen Walk
Scientific officer
T. 0049 (0) 159 - 0123 7533
Email: walk(at)compostnetwork.info
Steffen Walk joined the ECN in 2023. He is responsible for the management of ECN projects, in particular the EU Life BIOBEST project. He also works on best practices for separate collection of bio-waste and production of high quality compost and digestate.
Aline Granjard
Policy Officer
T.0032 (0) 492 02 41 53
Email: granjard(at)compostnetwork.info
Aline Granjard joined the ECN in 2024. Based in Brussels, she is responsible for the advocacy work on waste, resources and agricultural policies at EU level. She also contributes to the policy aspects of ECN projects.
Andrea Hohmann
Bookkeeping
T. 0049 (0) 234 4389447
Email: hohmann(at)compostnetwork.info
Andrea Hohmann joined the ECN in 2020. She is responsible for the bookkeeping. Additionally Andrea oversees the ECN memberships, welcomes new members and guides them through the application process as well as supports the organisation of Board meetings and the Annual Meeting.
Isabel Martin
Communications and public affairs assistant.
T. 0049 (0) 234 4389447
Email: martin(at)compostnetwork.info
Isabel Martin joined the ECN in 2021. She assists in managing the online presence of the ECN, its newsletter and other publications.