Ecosens – good advice in all sectors
We are an interdisciplinary team made up of qualified scientists and lawyers. Contaminated sites, environmental due diligence, environmental law or environmental management, environmental planning or hazardous materials in buildings: we develop sustainable and customer-specific solutions to your technical and legal problems.
Interdisciplinarity, curiosity and continuous professional development are our recipe for success when developing the technical and legal aspects of an innovative and balanced comprehensive solution. We are a dynamic, highly motivated team with a flat hierarchy.
As an employer, we offer stability, flexibility and continuous possibilities for development. We have been successfully handling complex projects for private and public customers in Switzerland and abroad for more than 25 years and in the process have been attracting the best young talent in the environmental sector.
We look forward to introducing you to the Ecosens team and to our services on this website. Our expertise allows us to find the perfect solution for you!
Our team
CEO / partner:
Lorenz Lehmann Executive partner, president of the board of directors
lic. iur. Zurich University, solicitor
llehmann@ecosens.ch +41 44 839 47 80
Daniel Aegerter Partner, Divisional manager: Environment, Due Diligence and Compliance
Diploma in Environmental Sciences ETH (Federal Institute of Technology)
daegerter@ecosens.ch +41 44 839 47 78
Stefan Fuchs Partner, Fribourg branch manager
Diploma in Geological Sciences BENEFRI UniFR Geologist CHGEOL
sfuchs@ecosens.ch +41 26 422 39 55
Michael Rüffer Partner, divisional manager for contaminated sites
Dipl. Phil.II, Geologist
Hydrogeology CHYN
mrueffer@ecosens.ch +41 44 839 47 81
Employees:
Tamara Bernhard Administration and Accounting Manager
KV Winterthur with vocational school
Specialising in finance and accounting
tbernhard@ecosens.ch +41 44 839 47 88
Corinne Blum Project manager for contaminated sites and building land
MSc Geology (Bern University)
cblum@ecosens.ch +41 44 839 47 96
Pia Buser Project manager for indoor air quality, radon specialist
Diploma in Environmental Engineering, ETH (Federal Institute of Technology)
pbuser@ecosens.ch +41 44 839 47 45
Men Dellagiovanna Project manager for hazardous building materials
MSc Environmental Sciences, ETH (Federal Institute of Technology)
mdellagiovanna@ecosens.ch +41 44 839 47 73
Pascal Diefenbacher Divisional manager for indoor air quality
Dr. sc. Environmental Sciences (Federal Institute of Technology)
pdiefenbacher@ecosens.ch +41 44 839 47 97
Maline Elumelu Project team member: hazardous materials in buildings
MSc Environmental Sciences, ETH (Federal Institute of Technology)
Domokos Fazakas Project manager: contaminated sites and building land
Diploma in Geological Engineering
dfazakas@ecosens.ch +41 44 839 47 98
Julia Hunziker Project team member: Contaminated Sites
MSc Environmental Sciences ETH (Federal Institute of Technology)
jhunziker@ecosens.ch +41 44 839 47 43
Isabelle Kohler Project team member: Contaminated sites and hazardous materials in buildings
MSc Environmental Engineering, ETH (Federal Institute of Technology)
ikohler@ecosens.ch +41 44 839 47 91
Thomas Kull Stv. Deputy divisional manager: Contaminated Sites, senior project manager: Contaminated Sites
Diploma in Biological Sciences, ETH (Federal Institute of Technology)
Post-graduate diploma in IT
tkull@ecosens.ch +41 44 839 47 84
Denise Kull-Portmann Co-divisional manager: Hazardous Materials in Buildings
MSc Environmental Sciences, ETH (Federal Institute of Technology)
dkull@ecosens.ch +41 44 839 47 72
Tino Pandiani Project manager: Hazardous materials in buildings
BSc. Environmental Engineering (University of Applied Sciences)
tpandiani@ecosens.ch +41 44 839 47 47
Christoph Peschke Project manager: Hazardous materials in buildings
Diploma in Engineering
cpeschke@ecosens.ch +41 44 839 47 92
Josephine Reichlin Project team member: Contaminated Sites
MSc Geological Sciences, ETH (Federal Institute of Technology)
jreichlin@ecosens.ch +41 44 839 47 93
Stéphanie Roth Project manager: Hazardous materials in buildings and contaminated sites
MSc Geological Sciences, UniFR
sroth@ecosens.ch +41 26 422 39 53
Daniel Sabathy Divisional manager: Environmental Planning
Diploma in Biological Sciences ETH (Federal Institute of Technology)
dsabathy@ecosens.ch +41 44 839 47 76
Ansgar Schlöffel Project Manager: Hazardous materials in buildings
Diploma in Environmental Sciences
aschloeffel@ecosens.ch +41 44 839 47 85
Tanja Schmid Project team member: hazardous materials in buildings
MSc Geological Sciences, ETH (Federal Institute of Technology), Zurich
tschmid@ecosens.ch +41 44 839 47 83
Lars Schudel Senior project manager: Contaminated sites and environmental planning
Certified Geographer
lschudel@ecosens.ch +41 44 839 47 40
Norman Seidel Project Manager: Hazardous Materials in Buildings
Builder
nseidel@ecosens.ch +41 44 839 47 39
Ramona Seling Project Manager: Hazardous Materials in Buildings
Diploma in Mechanical Engineering (University of Applied Sciences)
rseling@ecosens.ch +41 44 839 47 48
Michel Speich Project Manager: Hazardous materials in buildings
Diploma in Environmental Sciences ETH (Federal Institute of Technology)
mspeich@ecosens.ch +41 44 839 47 75
Frank Stamer Deputy divisional manager: Hazardous materials in buildings
Certified geologist
Certified industrial engineer (University of Applied Sciences)
fstamer@ecosens.ch +41 44 839 47 49
Katrin Tanneberger Co-divisional manager: Hazardous materials in buildings
Dr. rer. nat. Leipzig University
ktanneberger@ecosens.ch +41 44 839 47 46
Melanie Vögtli Project Manager: Contaminated sites
MSc Environmental Engineering, ETH (Federal Institute of Technology)
mvoegtli@ecosens.ch +41 44 839 47 71
Sanja Vranic Project team member: Hazardous materials in buildings and indoor air quality
MSc Environmental Sciences, ETH (Federal Institute of Technology)
svranic@ecosens.ch +41 44 839 47 42
Niko Westphal Project manager for hazardous materials in buildings
Dr. sc. Geological sciences ETH (Federal Institute of Technology)
nwestphal@ecosens.ch +41 44 839 47 44
Andrea Zimmermann Marketing and Administration
BSc Multilingual Communication, ZHAW (Zurich University of Applied Sciences)
azimmermann@ecosens.ch +41 44 839 47 89
Consultants:
Hans Ulrich Liniger Consultant for environmental and energy law, member of the board
Solicitor Dr. iur., Zurich University
Albert von Däniken Consultant for environmental due diligence and compliance