Our Team

TNF Board Members

Guido Beauchez

Guido Beauchez

Chairman

Guido Beauchez is a fundraiser with a management and consulting background in both the profit as well as the not-for-profit sector. Over the last 20 years he directed one start-up, two musea and a charity organisation. As the chairman of the True Nature Foundation, he is contributing to board meetings, fundraising and business development.

Jalbert Kuijper

Jalbert Kuijper

Board Member

Jalbert Kuijper is a curious, broad minded and interested board member, specialised in business strategy, business development, leadership, coaching, innovation and circular business models. Before joining True Nature Foundation, he previously acted as director business development & innovation at WWF Netherlands.

Marijke Brune

Marijke Brune

Financial Specialist

Marijke Brune’s background is in international finance at ING Bank. Based in Amsterdam, Moscow and Paris, for over twenty years, she arranged large transactions in Eastern Europe, Latin America and Africa. In 2000, Marijke started her own consultancy, SIVC Advisory Services, aiming at capacity building, micro- and inclusive finance for clients. The last years her work increasingly focuses on issues such as sustainable energy and preventive health.

Country Programme Managers

Projects Support

Luis Martínez

Luis Martínez

Spain (Volunteer)

Luis Martínez is an Environmental Educator and teacher in diverse fields of (agro) ecology. Luis collaborates with and has founded several associations, such as the Riojan Association for Environmental Education and the local Seeds Network. He has a Bachelor in Biology, Master degree in Conservation and Evolution of Biodiversity, and an Executive Master in Business Administration. 

Daniel Schinteie

Daniel Schinteie

Romania (Volunteer)

Daniel Schinteie was born in the Carpathian Mountains in Western Romania, one of the wildest places in Europe. He has always been passionate about wildlife and wilderness. Daniel has a Master’s degree in Tourism Development and Improvement from West University of Timișoara. He has a strong interest in developing the ecological and ecotourism potential of protected areas in Romania.

Bram Geers

Bram Geers

Researcher Peatland - Netherlands (Volunteer)

Bram Geers is a curious, creative and very knowledgeable biologist, researcher and entrepeneur, who received his masters title cum laude from Leiden University in 2015.  He is keen to work on the intersection of different disciplines, to come up with new scientific insights, as well as innovative business concepts. Before joining True Nature Foundation as Researcher Nature Based Solutions, he worked on the collection digitisation at the Naturalis Biodiversity Center in Leiden and as research coordinator at BioArt Laboratories in Eindhoven, Netherlands.

Advisory Board

Maurits Groen

Maurits Groen

Green entrepreneur, Climate activist

Maurits Groen is a Dutch green entrepeneur (Wakawaka, Kipster, Greenem), climate activist and publisher of the Dutch edition of Paul Hawken’s “Drawdown, the most comprehensive plan ever proposed to reverse global warming”.

Prof. Dr. Michael Hofreiter

Prof. Dr. Michael Hofreiter

Professor Evolutionary Adaptive Genomics

Michael Hofreiter’s research activities focus on the effect environmental changes have on genetic diversity, adaptation and population dynamics in animals. He is especially interested in the use of ancient DNA sequences to directly observe changes in the genetic make-up of populations. Using this approach, population replacements and migrations can be detected that could not be deciphered using traditional methodologies.

Manuela Stefan

Manuela Stefan

Photographer

Equine photographer Manuela Stefan travels worldwide to capture the spirit of the horse. Her love for travel and horses has brought her to spectacular locations in France, Romania, Canada and the U.S. The beauty and majesty of horses trigger her creativity to a great extent. She is on a mission to reveal their true nature and spirit to the rest of the world the best way she can.

Hape Grunenfelder

Hape Grunenfelder

Ethnozoographer

Ethnozoographer and graduated engineer at the Swiss Federal Institute of Technology with a Master in rural development. Former honorable functionary of WWF-Switzerland. Hape has been concerned with the issue of agrobiodiversity since the end of the 1970s. As executive vice chairman he leaded and supported the activities of SAVE Foundation and the European SAVE Network from 1999 until 2014. 

Prof. Dr. David Burney

Prof. Dr. David Burney

Professor of Conservation Paleobiology

David Burney is a Professor of Conservation Paleobiology at the National Tropical Botanical Garden (Kaua`i). His research has focused on paleoecological studies, causes of extinction, and preservation of endangered species. A paleoecologist and conservation biologist whose lifelong interest has been the interactions between nature and humanity, Dr. Burney has over 40 years of practical experience in conservation.

Prof. Dr. George Molenkamp

Prof. Dr. George Molenkamp

Business Management

After completion of his academic studies and PhD research in natural sciences and mathematics, George worked from 1974-1985 for the State Public Health Supervisory Body in The Hague. He left public service in 1985 and started within Touche Ross (now Deloitte) a consulting business focussing on management of environmental issues in companies from a business and management perspective.