Secretariat

Dr Stefanie Siebert
Executive Director

T. 0049 (0) 234 4389447
Email: siebert@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.

Andrea Hohmann
Bookkeeping

T. 0049 (0) 234 4389447
Email: hohmann@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.

Riccardo Gambini
Policy officer

T. 0032 (0) 24 00 10 82
Email: gambini@compostnetwork.info

Riccardo Gambini joined the ECN in September 2022 and will be responsible for the main political issues addressing nutrients recycling and circular bio-economy, including EU Fertilisers Regulation, Animal By-Product Regulation and the Common Agricultural Policy.
Previously, he worked as a policy adviser at Eucolait in Brussels where he gained extensive experience in monitoring, influencing and reporting about Public Affairs. Riccardo holds a Master’s Degree in International Relations and 2nd Master's in Environmental Economics and Management.

Isabel Martin
Communications and public affairs assistant.

T. 0049 (0) 234 4389447
Email: martin@compostnetwork.info

Isabel Martin joined the ECN in 2021. She assists in managing the online presence of the ECN, its newsletter and other publications.