Ecosens – good advice in all sectors
Ecosens is a partner-managed Swiss environmental consulting company providing services in the areas of subsoil, buildings, environment & planning, and law & compliance. Our consulting services focus on topics such as contaminated sites, soil, foundation soil, groundwater, building pollutants, indoor air quality, environmental compatibility, audits, environmental due diligence, and environmental and climate law.
Since its foundation in 1990, Ecosens has always pursued the goal of developing timely and efficient meaningful, innovative, and interest-oriented solutions for constantly changing environmental problems and the questions posed by clients. We pursue these objectives with teamwork and an interdisciplinary approach, combining our legal, scientific, and technical expertise, which has resulted in Ecosens developing into a renowned and successful provider in the market for environmental services, with locations in Wallisellen and Fribourg. We have the support of a large and loyal network of clients, partners, and suppliers throughout Switzerland and abroad.
The cornerstone and success factor at Ecosens is a well-coordinated and experienced team of around fifty highly qualified and competent employees. We live out our values such as interest, commitment, trust, and reliability every day. We enjoy a constructive exchange with our clients and lively cooperation within our team. The basis for our long-term and well-motivated employees is an inspiring and fair working environment with open doors, development opportunities and short communication channels. Their loyalty, creativity and sense of personal responsibility make a significant contribution to the overall success of the company. We are committed to achieving a successful work-life balance together with equal opportunities and wages.
Our team
CEO / partner
Stefan Fuchs Executive partner
Diploma in Geological Sciences BENEFRI UniFR Geologist CHGEOL
sfuchs@ecosens.ch +41 26 422 39 55
Lorenz Lehmann 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
Michael Rüffer Partner, Senior project manager for contaminated sites
Dipl. Phil.II, Geologist
Hydrogeology CHYN
mrueffer@ecosens.ch +41 44 839 47 81
Employees
Thiago Biolley Co-branch manager Ecosens Romandie SA, Project manager Contaminated sites and hazardous materials in buildings
MSc. Earth Sciences (University of Geneva and Lausanne)
Certificate in Geomatics (GIS) (University of Geneva)
tbiolley@ecosens.ch +41 44 839 47 34
Sandra Bliggenstorfer Marketing Communication Manager
Dipl. Marketing Specialist
sbliggenstorfer@ecosens.ch +41 44 839 47 77
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
Pascal Diefenbacher Divisional manager for indoor air quality
Dr. sc. Environmental Sciences (Federal Institute of Technology)
pdiefenbacher@ecosens.ch +41 44 839 47 97
Michael Ehmann Project Manager: Hazourdous Materials in Buildings
Builder
mehmann@ecosens.ch +41 44 839 47 37
Domokos Fazakas Project manager: contaminated sites and building land
Diploma in Geological Engineering
dfazakas@ecosens.ch +41 44 839 47 98
Nora Hoch Junior project manager: Contaminated sites and hazardous materials in buildings
MSc Environmental Sciences ETH (Federal Institute of Technology)
nhoch@ecosens.ch +41 44 839 47 86
Julia Hunziker Project manager: Contaminated Sites
MSc Environmental Sciences ETH (Federal Institute of Technology)
jhunziker@ecosens.ch +41 44 839 47 43
Isabelle Kohler Senior Project manager hazarous materials in buildings, Project manager contaminated sites
MSc Environmental Engineering, ETH (Federal Institute of Technology)
ikohler@ecosens.ch +41 44 839 47 91
Thomas Kull 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
Annatina Maurer Administration hazardous materials in buildings
Biology (MSc. in Ecology)
amaurer@ecosens.ch +41 44 839 47 33
Michel Meier Project Manager Measurement
Specialist for asbestos abatement EKAS
mmeier@ecosens.ch +41 44 839 47 47
Luca Meyer Junior Project Manager Hazardous Materials in Buildings
lmeyer@ecosens.ch +41 44 839 47 31
Robin Monnard Junior project manager
Hydrogeologist
MSC Hydrogeology and Geothermics
rmonnard@ecosens.ch +41 26 422 39 52
Silvan Müller Project manager: Hazardous materials in buildings/Project staff: Environmental planning
MSc Environmental Sciences, ETH (Federal Institute of Technology)
smueller@ecosens.ch +41 44 839 47 73
Raphael Rapold Project manager for indoor air quality
MSc. economic chemistry
rrapold@ecosens.ch +41 44 839 47 90
Oliver Rehmann Junior project manager Contaminated sites
MSc. earth system science
orehmann@ecosens.ch +41 44 839 47 96
Josephine Reichlin Project manager contaminated sites and building land
MSc Geological Sciences, ETH (Federal Institute of Technology)
jreichlin@ecosens.ch +41 44 839 47 93
Stéphanie Roth Co-branch manager Ecosens Romandie SA, 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
Colette Schefer-Peisker Legal Assistant
MLaw University of Lucerne
cpeisker@ecosens.ch +41 44 839 47 34
Ansgar Schlöffel Senior Project Manager: Hazardous materials in buildings
Diploma in Environmental Sciences
aschloeffel@ecosens.ch +41 44 839 47 85
Tanja Schmid Administration 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/ Deputy divisional manager: 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
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 Tschopp-Vögtli Divisional manager: Contaminated sites
MSc Environmental Engineering, ETH (Federal Institute of Technology)
mtschopp@ecosens.ch +41 44 839 47 71
Lukas Uhlmann Project Manager Contaminated sites and hazardous materials in buildings
MSc Geosciences, Friedrich-Schiller-University Jena
luhlmann@ecosens.ch +41 44 839 47 77
Santiago Vargas Junior project manager: Hazardous materials in buildings
BSc Environmental Engineer (University of Applied Sciences)
svargas@ecosens.ch +41 44 839 47 92
Sanja Vranic Project manager: Hazardous materials in buildings and indoor air quality
MSc Environmental Sciences, ETH (Federal Institute of Technology)
svranic@ecosens.ch +41 44 839 47 79
Niko Westphal Senior project manager for hazardous materials in buildings
Dr. sc. Geological sciences ETH (Federal Institute of Technology)
nwestphal@ecosens.ch +41 44 839 47 44
Benjamin Zürcher Project manager hazardous materials in buildings/contaminated sites/
IT-Application
bzuercher@ecosens.ch +41 44 839 47 42
