The management team

Dr. Christian Wolf

christian.wolf(at) | Phone: +49 2171 55 997 0



Managing director | Head of the Test Facility






Studies of Biology at the University of Cologne, Diploma and PhD thesis about the feeding ecology and life history strategies of inland breeding oystercatchers (Haematopus ostralegus)



Foundation of tier3 solutions GmbH in October 2010

2005 – 2010 Managing Director of a CRO

1998 – 2005 product responsible scientist ecotoxicology at Bayer CropScience AG

1996 – 2004 post-doc at Bayer CropScience AG, wildlife field studies and laboratory research

Torsten Hauck

torsten.hauck(at) | Phone: +49 172 7149572



Managing director






Studies of Geography, Geology and Physics at the University of Heidelberg,
Diploma thesis about the coupling of a pesticide leaching model with regional GIS data (spatial distributed modelling)



2019 Managing Director and partner at tier3 solutions
2013 – 2019 Managing Director and partner of knoell Germany, Mannheim | Managing Director of the subsidiaries knoell France SAS, Lyon; Dr. Knoell Consult Ltd, Cardiff and Knoell Iberia, S.L, Madrid | Member of the Board of Directors knoell USA, LLC and knoell USA Holdings, Inc., Delaware
2010 – 2013 Head of the Business Unit Agrochemicals at Dr. Knoell Consult GmbH
2003 – 2009 Group Leader E-Fate / Modelling / GIS at Dr. Knoell Consult GmbH
2000 – 2003 Environmental Fate Modeller, Crop Protection and Biocides at BASF AGresearch

Dr. Heino Christl

heino.christl(at) | Phone: +49 2171 55 997 14


Position and Responsibilities

Director Regulatory Affairs & Consulting

Authorised signatory (Prokurist) & deputy head of GLP test facility



Biologist (Ecology), Dr. rer. nat., Ecotoxicologist by training



Studies of Biology at University Hannover, Tübingen and Marburg-Lahn. 

Specialisation in zoology, limnology (aquatic ecology), entomology and nematology.

PhD thesis at the Max-Planck-Institute of Limnology, Research Station Schlitz and the Philipps-Universität Marburg on the community of free-living nematodes in a first-order stream.



since April 2012 at tier3 solutions GmbH (Regulatory Ecotoxicologist)

2009-2012 Agchem Project Consulting (APC) Ltd, UK  (Regulatory Ecotoxicologist)

2006-2009 JSC International Ltd, UK (Ecotoxicologist, Project Manager)

2002-2006 Covance Laboratories GmbH, Münster (Study Director)

2001-2002 BAYER Pflanzenschutz-Zentrum, Monheim (Scientist)

1996-2001 Independent expert (Scientist, Project Manager)

Dr. Andrea Roßbach

andrea.rossbach(at) | Phone: +49 2171 55 997 12


Position and Responsibilities

Authorised signatory (Prokurist) & Team Leader Field Studies

Study Director

Field Studies (Arthropod Residues & Seed Dissipation Studies)


Biologist (Ecology, Agroentomology) 



Studies of Biology (Dipl. Biol.) at the University of Osnabrueck

Studies of Agriculture (MSc) of the Tropics and Subtropics at the Georg-August-University in Goettingen

PhD thesis (University of Goettingen) on effects of the host shift of diamondback moth to peas on parasitoids in Kenya



Since 2011 at tier3 solutions GmbH

2009-2010 Consultancy Ecotoxicology, Regulatory Affairs

2007-2008 Principal Investigator, Arthropod Residue Studies

tier3 solutions GmbH

Headquarter: Kolberger Str. 61-63 | 51381 Leverkusen | Germany

Branch office Ludwigshafen: Donnersbergweg 1 | 67059 Ludwigshafen am Rhein


Phone: +49 2171 55 997 0 | Fax: +49 2171 55 997 69 | E-mail: info|at|

Managing Directors: Dr. Christian Wolf & Torsten Hauck

Trade Register: Cologne HRB 70506 | VAT-No. DE 274 359 609