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Organic Department





Martin Weinschenk-Foerster

Partner; evaluation and certification officer

Tel.: +49 (0) 9158 - 92 89 886

Claudia van Bentum

Evaluation officer



Ursula Schulz

Coordinator and Certification officer for Chile,  Romania and Moldova; evaluation officer

Tel.: +49 (0) 9158 - 92 86 910

Maria Elena Collazos

Coordinator and Evaluation for Peru


Saba Kum

Coordinator and Evaluation officer Turkey




Raphael Rivera

Evaluation officer

Tel.: +49 (0) 9158 - 92 89 864




Idaniurka Tamayo

Coordinator and evaluation officer for Bolivia, Colombia and Paraguay

Tel.: +49 (0) 561 - 50 376 887

Liliana Guamán Hommel

Coordinator for Spain and Evaluation officer Latin America



Britta Rosenstein

Evaluation officer

Tel.: +49 (0) 9151 - 9628 235


Tanja Groh

Evaluation officer for inputs

Tel.: +49 (0) 9151 - 8390 100


Olga Medvedeva

Coordinator and evaluation officer for East-Europe and Central Asia

Tel.: +49 (0) 711 - 351 792 168


Dominic Strempel

Evaluation officer for Residue Cases

Tel.: +49 (0) 9151 - 962 93 98


Eduardo Tilatti

Evaluation officer,
demeter inspections

Tel.: +49 (0) 9151 - 962 82 21


Andrea Langnickel

Evaluation Officer for Wildcollection

Tel.: +49 (0) 9151 - 8390 118


Mareike Aufderheide-Voigts

Coordinator and evaluation officer for South-Africa



Hong Zhao

Evaluation officer


Johannes Tschich

Evaluation officer

Tel.: +49 (0) 551 - 303 810 87

Jean-Jaques Melapie

Evaluation officer

Tel.: +49 (0) 551 - 303 810 82



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