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PEFC Staff


Ben Gunneberg, CEO and Secretary General

A graduate from Aberdeen University, a chartered forester, with a Masters in Business Administration from the Open University, Ben has spent most of his working life in Forestry, starting as a forestry worker.

After completing his studies he joined the University of Wales, Bangor as a researcher in Forest Economics and thereafter worked in various positions in the Timber Growers Association in the UK where he dealt with technical and policy aspects of forestry and became involved in forest certification when he took on the position of Technical Director.

Ben became Secretary General of PEFC in 1999.


Communications Unit


Thorsten Arndt, Head of Communications

After finishing his Master in Public Affairs at the University of Minnesota, Minneapolis, Thorsten began his professional life at the United Nations Development Programme (UNDP).

He then worked at the World Business Council for Sustainable Development (WBCSD) as Communications Manager before joining PEFC.

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Hannah Price, Communications Officer

Hannah has worked in the field of communications since leaving university. After moving to Geneva from the UK in 2009 she worked for an NGO as Communications Officer before joining PEFC in 2013.

She has a Bachelor of Science in Geography from the University of Manchester, UK.


Projects & Development Unit

Sarah Price

Sarah Price, Head of Projects & Development

Sarah has been working in the forest sector for over 15 years, held positions with The Forest Trust (TFT) and The Forest Dialogue (TFD) and brings field experience from working in North America, South America and Southeast Asia.

She possesses a Masters of Forest Science from Yale University and a Bachelor of Science from the University of British Columbia.

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Rémi Sournia, Projects & Development Officer

Rémi has worked in the sustainable development field since 2005. Prior to joining PEFC, he worked for The Forest Trust (TFT) as a Coordinator of the European Union project Timber Trade Action Plan (TTAP).

Rémi holds a Master's degree in Environment and Agronomy from AgroParisTech, France.


Technical Unit

Michael Berger

Michael Berger, Head of Technical Unit

Michael worked as a consultant in the fields of environmental and quality management, organizational development and sustainable supply chain development for over ten years.

After studying Economics at the University of Augsburg, Michael completed his PhD in Forestry at the School for Forestry and Resource Management at the Technical University of Munich.


Christian Kämmer, Technical Officer

Christian joined the organization full-time as a Technical Officer after working as a Research Assistant on a temporary basis.

Christian graduated as a Forest Engineer from the University of Applied Science in Göttingen, Germany.

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Johan Vlieger, Technical Officer

Before joining PEFC International as a Technical Officer, Johan worked as Coordinator with PEFC Netherlands. As a student in Forest Management at Wageningen University he helped establish PEFC Netherlands in 2008.


Finance & Administration


Natalie Faulkner, Office Manager

Natalie joined PEFC International having returned to Europe following 22 years spent in the US and Mexico working for several multinational companies.

She is Office Manager and Executive Assistant to the Secretary General, and is fluent in English, French and Spanish.



Gill Parker, Finance Manager (part-time)

Gill is responsible for PEFC International's book-keeping and administration. Trained in accounting, she has worked for diverse international-membership organizations in the UK.

She has been with PEFC for 10 years, having helped to establish the first office in Luxembourg and latterly in Geneva.


Simon Clark, Finance Officer (part-time)

Simon moved to Switzerland from the UK with his family in August 2010 and joined PEFC in June 2012.

Trained, amongst others, in Accounting, Simon ran his own businesses in the UK for countless years, providing book-keeping services. He also worked for 7 years as Administration Manager for a UK Accounting Software Company.

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PEFC Certified

Forests area: 263 million ha
Forest owners: > 750,000
Companies (CoC): 15,804

(as of December 2014)
Global Stats |


Contact PEFC

PEFC International
10, Route de l'Aéroport
Case Postale 636
1215 Geneva

Tel: +41 (22) 799 4540
Fax: +41 (22) 799 4550

PEFC Membership/Status


ECOSOC Consultative Status


UNFCCC Observer


IUCN Member


IAF Association Member


Forest Legality Alliance Member


Congo Basin Forest Partnership Member


International Family Forestry Alliance Member


ATIBT Member


TFA 2020 Partner

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