The first level, like the roots of a dandelion, is robust research, providing the foundation that supports all other efforts. EA services, solutions and expertise can be understood as the stem, with direct support being provided to foster the growth and success of clients and partner organizations. With these anchors in place, EA is positioned to directly and indirectly disseminate research-based and practical initiatives and action to create a ripple effect of positive impact and necessary change.
EA’s commitment to broader change is also firmly established in the organization’s design where all profits generated in the for-profit side, EA Sàrl, are reinvested in the non-profit arm, the EA Association, to support scientific advancements, global partnerships and the design of research-based solutions to expand environmental responsibility and reign in humanity’s impact on the planet.
Recognized worldwide, EA’s expertise garners invitations for interviews and media coverage, inspiring organizations, businesses, and citizens to embrace sustainable practices and collaborate in reducing their environmental footprint.
La nouvelle modélisation issue du rapport From Shedding to Solutions d’Earth Action montre pourquoi la seule amélioration du traitement des eaux usées ne change presque rien à la pollution par les microfibres, et ce qui change lorsqu’elle est associée à une gestion maîtrisée des boues.
New modelling from Earth Action’s From Shedding to Solutions report shows why upgrading wastewater treatment on its own barely moves the needle on microfiber pollution, and what changes when it’s paired with controlled sludge management.
La date d’application du règlement est passée le 12 août 2026. Presque rien de ce qui réduit, recycle ou réutilise les emballages n’est encore contraignant, et la règle permettant de mesurer si les objectifs de réutilisation sont atteints n’a pas à exister avant 2027.
The Power of Dual Expertise Unleashed
EA is co-led by Julien Boucher and Sarah Perreard whose combined expertise and impassioned commitment to resolving major environmental issues provides EA with a unique position in the sustainability world.
Julien, with a PhD in Environmental Science, has made remarkable research and functional contributions, particularly in plastic footprinting methodologies and modeling micro/macro plastic pollution. Leading EA’s technical efforts, he employs his unique “scoping for impact” approach, transforming complexity into actionable plans for meaningful change.
Sarah brings a strong understanding of corporate realities to EA built through diverse commercial and business development roles at renowned companies. An early commitment to circular economy themes led to invitations to lead global transformation projects, where she achieved success through understanding and engagement of large stakeholder groups.
Meet the team
EA’s diverse team combines expertise in various sustainability domains, offering tailored solutions and expansive perspectives to clients and partner organizations.
Julien Boucher, PHD
Founder, Co-CEO and Head of Research & Science
Sarah Perreard
Co-CEO and Stakeholder Engagement Lead
Arnaud Dauriat
Managing Director
Charlotte Stalder
Environmental Consultant
Virginie Galdemar
Accountant
Blanche Dalimier
Environmental Consultant
Noémie Voirin
Environmental Consultant and Project Manager
Charlotte Durieux
Environmental Consultant and Project Manager
Riccardo De Gennaro, PHD
Data Specialist
Marguerite Fauroux
Environmental Consultant
Romain Bosson
Environmental Consultant and Project Manager
Mikele Gajda
Vincent Duffau
Business Development
Jean-Baptiste Bayart
Senior LCA Consultant and Business Development Advisor
Edouard Cattin
Environmental Consultant and Analyst
Meet our experts
EA’s external experts bring decades of deep technical experience to support our work and help us reach higher levels of both accuracy and quality.
Samuel Vionnet
Founder and CEO of Valuing Impact
Lindsay Lessard
Sustainability Expert | Climate & Nature
Benoît Verzat
Founder of MOKA earth
Dr. Elena Corella Puertas
Chair of the Scientific Committee, Plastic Footprint Network (PFN)
Olivier Schär
Founder of BioPerf.biz
Denis Bochatay
Co-founder, Bieler & Bochatay
At EA, we believe a core responsibility is empowering individuals to make a positive impact on the world. Our ambition knows no bounds and just as we strive to secure global ecosystems, we strive to create a professional environment where we accomplish the seemingly impossible while enjoying the process. We believe in giving every problem a fighting chance.
We are looking for an Environmental Sustainability Consultant/Senior Role to support our team in guiding our clients toward a more sustainable future.
We are looking for experienced consultants with expertise in Life Cycle Analysis and related disciplines (carbon footprint, modeling, ecodesign etc.) to join our Swiss-based team.
Science-oriented analysts with a passion for improving the environmental performance of clients are encouraged to consider this analyst role with EA
EA – Earth Action
Lausanne, Switzerland
Ch. des vignes d’argent 7
1004 Lausanne Suisse
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Founder, Co-CEO and Head of Research & Science
Scoping for Impact, Methodology Development, Plastic Footprint, LCA, Circularity, Waste Management Data
Julien Boucher is an entrepreneur and sustainability expert with over 20 years of experience in sustainability consulting, research and eco-design.
With a PhD in Environmental Science, Julien co-founded Quantis in 2006 (sold to BCG in 2022), EA- Environmental Action in 2012, and Plasteax in 2021.
He has recently played a central role in the development of plastic footprinting methodologies and the modeling of micro and macro plastic pollution. Julien is the lead author of more than 20 publications and scientific reports-among which is the IUCN most downloaded report- and has conducted consulting projects for more than 200 clients. Julien is a member of the board of directors of REFFNET, ENEC and ASL, and a professor of environmental sustainability at EPFL, UNIL, HES, UniGE, SUMAS.
At EA, Julien leads the technical efforts with his signature “scoping for impact” approach, transmitting his skills with breaking down complexity into actionable plans.
Co-CEO and Stakeholder Engagement Lead
Business development, Sales and Marketing Strategy, Industry Applicability, Design Thinking, Stakeholder Engagement
Sarah has over 16 years of experience in business management and consulting in plastic. With a Master’s degree in Business Management from the University of Geneva and an innovative mindset, she spent the first 8 years of her career in various commercial and business development roles at DuPont, working across diverse sectors and company sizes.
Her expertise in the circular economy led her to work with global clients on product innovation for circularity at DuPont and Dow, where she successfully led and mentored multi-stakeholder field projects involving midstream and downstream local companies in South Africa and MiddleEast, NGOs and governments. In 2018, Sarah led the development of the “Extended Producer Responsibility Systems for Packaging Waste –Information and recommendations for the MENA region” report, working with Cyclos and the University of Rostock, in the context of supporting the Jordan government with EPR implementation.
In 2019, Sarah left the corporate world to pursue her passion for creating systemic change and value as an independent consultant. In 2021, she co-founded Plasteax with Julien Boucher and later joined the EA team, bringing her extensive corporate knowledge and expertise to drive sustainable value creation. Sarah leads the secretariat of the Plastic Footprint Network, steering stakeholders from across the plastic value chain towards accountability and ambition.
Managing Director
Leadership, Sustainability Strategy, Life Cycle Assessment, Business Growth, Innovation, Stakeholder Engagement
Arnaud Dauriat is a seasoned sustainability leader with over 26 years of experience guiding organizations toward environmentally responsible and science-based business models. With a Master’s degree in Environmental & Earth Resources Engineering from Imperial College London, he has built a career at the intersection of strategy, impact, and operational excellence.
Arnaud began his career as a researcher and lecturer at EPFL before co-founding ENERS Energy Concept, where he developed expertise in life cycle assessment, bioenergy, and energy policy. In 2011, he joined Quantis, where he managed major client projects in the food, beverage, and construction sectors and contributed to large-scale EU-funded initiatives.
As Managing Director of Quantis Switzerland from 2015 to 2024, Arnaud scaled the company’s revenue fivefold and its workforce threefold, driving both business success and sustainability impact. More recently, as Global Chief of Staff at Quantis, he drove internal transformation programs and pioneered the integration of Generative AI into business processes.
Passionate about collaboration, innovation, and impact, Arnaud continues to inspire teams and stakeholders to embrace sustainable value creation.
Environmental Consultant
Credits Mechanism, Business Management, Project Management, Sustainability Assessment & Strategy, Corporate Innovation
Charlotte Stalder joined EA during her Master’s degree in Sustainable Business and Innovation to conduct research on plastic credit mechanisms. Her interest in the complexity and challenges of transitioning to a circular and sustainable plastics value chain grew after participating in a European Commission-funded project aimed at innovating towards the development of the plastic circular economy in Europe.
At EA, she works as an environmental analyst at the intersection of existing and emerging solutions to the plastic pollution crisis and private sector commitments. Charlotte is a critical thinker and driven sustainability practitioner passionate about creating sustainable, positive environmental and social impact.
Accountant
Admin and Finance
With two Master’s degrees, one in Economics and the other in Sociology, Virginie Galdemar has devoted 15 years to working in management, policy implementation, and social policy evaluation.
At EA, Virginie manages payroll, oversees overall and projected accounting and handles invoicing. She also serves as the administrative point of contact for the organization, and provides HR support for the entire staff.
Environmental Consultant
Life Cycle Assessments (LCAs), Carbon footprint, Development and implementation of sustainability strategies.
Blanche Dalimier holds a master’s degree in environmental engineering, with a focus on urban sustainability. She specializes in supporting companies and public entities in designing and executing sustainability strategies, leveraging advanced tools such as life cycle assessments (LCAs) to quantify environmental impacts and guide decision-making processes.
Enviromental Consultant and Project Manager
Project Management, Sustainability Education, Carbon Footprint
Noémie holds a master’s degree in Foundations and Practices of Sustainability, with a specific focus on sustainability education and the adaptation of schools to address the challenges of ecological transition.
At EA, she serves as an environmental consultant and project manager, specializing in guiding businesses through their sustainability journey. Her responsibilities encompass evaluating environmental impacts and creating tailored environmental training programs that empower employees to implement precise and impactful actions. Additionally, she leverages her experience in translating complex scientific concepts for the general public and organizing sustainability-focused events.
Environmental Consultant and Project Manager
Sales and Marketing Strategy, Innovation, Carbon Footprint, Life Cycle Assessment, Change Management
Data Specialist
Data Analytics, Coding, Data Modelling
Riccardo De Gennaro holds a PhD in materials science and engineering. During the years of research, he developed powerful computational tools to design materials for applications in renewable energies. Driven by the passion towards sustainability issues, Riccardo joined EA where he is applying his research experience and strong analytical mindset to tackle plastic footprint projects.
By combining his experience in scientific modelling and software development, Riccardo is working to enhance the capabilities of PLASTEAX, EA’s data platform for plastic waste management.
Riccardo is also leading several working groups within the Plastic Footprint Network (PFN), managing the interactions with industry experts to define general methodologies for plastic footprinting.
Environmental Consultant
Carbon Footprint, Life Cycle Assessment, Energy Transition
Marguerite holds a master’s degree in Energy Science and Technology with a minor in Sustainability from the Swiss Federal Institute of Technology in Lausanne (EPFL), with a specialization in sustainability. Her specialization includes carbon footprinting, life cycle analysis, and the development of sustainability strategies.
As an Analyst at EA, Marguerite applies her knowledge to quantify carbon footprints, conduct life cycle assessments, and craft climate strategies for companies.
Marguerite’s educational background includes a Master Thesis at CIRAIG, where she performed a prospective life cycle analysis of metals essential for the energy transition, and multiple projects at EPFL, including an assessment of hydrogen’s potential in the Swiss energy transition and the design of an educational board game about the energy transition.
Environmental Consultant and Project Manager
Engineering, Innovation, Systems Thinking, Change Management, Stakeholder Engagement
Romain is a purpose-driven engineer and leader with over a decade of experience creating innovative solutions for human health, now dedicated to addressing environmental health challenges. During his career, he designed multiple award-winning medical devices, demonstrating his ability to combine technical expertise with user-focused innovation. He has successfully led cross-functional teams and managed complex projects, blending technical skills with strategic leadership to achieve impactful results in highly regulated environments.
With his innovative mindset, Romain founded a platform to foster regenerative, community-based food systems, connecting local farmers with consumers by engaging employers as key stakeholders. He has further deepened his expertise through advanced training in sustainability, life cycle assessment, and regenerative practices.
At Earth Action, Romain empowers organizations to achieve measurable environmental goals by combining his technical knowledge, leadership skills, and passion for driving meaningful transformation.
PhD, Data Engineer
Mikele Gajda is a software engineer and researcher specializing in optimization algorithms, and data-driven solutions for complex transportation and environmental challenges. He holds a PhD in Operations Research from the University of Lausanne, where he focused on last-mile logistics optimization using advanced techniques such as Mathematical Programming and Deep Reinforcement Learning.
With experience leading R&D efforts at Italmondo and collaborating with institutions like EPFL, ETH Zurich, DTU, and Polytechnique Montréal, Mikele brings a rigorous, impact-focused approach to algorithm design and applied analytics.
At Earth Action, he contributes to projects including Plasteax and Packaging Data Hub (PDH), advancing digital tools for sustainability through optimization, data science, and technical innovation.
Business Development
Supply Chain, Procurement, Traceability, Stakeholder Engagement, Sustainability Strategy
Senior LCA Consultant and Business Development Advisor
Life Cycle Assessment, Product Innovation, Digital Solutions, Sustainability Strategy, Business Development
Jean-Baptiste is a sustainability expert and product leader with nearly 20 years of experience in environmental footprinting and Life Cycle Assessment (LCA). With a Master’s degree in Chemical Engineering from Polytechnique Montréal and a strong background in data-driven sustainability, he has dedicated his career to transforming complex environmental science into actionable, scalable solutions.
Before joining Earth Action, Jean-Baptiste spent over a decade at Quantis (a BCG company), where he led the development of digital tools such as eQosphere and eQopack—SaaS platforms now used by leading FMCG companies to measure, understand, and reduce their environmental footprint. His expertise bridges science and technology, helping organizations integrate sustainability intelligence into product
design and strategic decision-making.
At Earth Action, Jean-Baptiste serves as Senior LCA Consultant and Business
Development Advisor, bringing his technical knowledge and innovation mindset to support clients on their sustainability journey. Passionate about impact transparency, he continues to explore how digital tools can accelerate environmental action across industries.
Environmental Consultant and Analyst
Life Cycle Assessment (LCA), Carbon footprint, Development and implementation of sustainability strategies, Building sustainability certifications, Sustainable construction
Founder and CEO of Valuing Impact
Sustainability Strategy & Integration, Impact Valuation & Measurement, Environmental, Social & Human Capital Assessment, Thought Leadership & Knowledge Sharing
Sustainability Expert | Climate & Nature
Environmental Research and Analysis
Project Coordination in Energy Sector, Life Cycle Assessment (LCA)
Founder of MOKA earth
LCA, sustainability, shared governance, Energy Transition
Chair of the Scientific Committee, Plastic Footprint Network (PFN)
Expert in plastic pollution, life cycle assessment, and impact modeling
Founder of BioPerf.biz
Biodiversity Consultant & Systems Thinker
Co-founder, Bieler & Bochatay
Environmental Engineer & Sustainability Strategist
Denis Bochatay is an environmental engineer and sustainability expert with over 20 years of experience helping cities, companies, and institutions align strategy with science. His work spans climate policy, life cycle thinking, urban sustainability, and renewable energy deployment.
He is the co-founder of Bieler & Bochatay, a Lausanne-based consultancy focused on the development of photovoltaic infrastructure and sustainability integration in the built environment. Since 2021, Denis also serves as Climate Project Manager for the City of Lausanne, where he coordinates the implementation and monitoring of the city’s climate strategy.
Previously, Denis spent a decade as a Senior Consultant at Quantis, where he led projects for public authorities across Switzerland. He has also taught urban sustainability at UNIL and HEPIA.
As an external expert working with Earth Action, Denis contributes his systems expertise and operational perspective to projects focused on environmental metrics, transition planning, and the implementation of sustainability strategies.
