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Our team

Hélène Teulon



Hélène Teulon is an engineer graduated from the École Polytechnique, and has a doctorate in industrial economics. She has been developing stroke skills since 1992.

Founder of Gingko 21 in 2005, she developed the OpenGreen eco-innovation method, published in The Eco-innovation Guide: it helps management teams to integrate the circular economy into their strategy, leads creativity seminars, and notably explores disruptive eco-innovation, aimed at completely erasing environmental impacts.

Gentiane Gastaldi



Gentiane Gastaldi is an agricultural engineer specializing in the environment.

After an experience in mass distribution, she joined Gingko 21 and supports our customers in the realization of LCA, the implementation of eco-design and the training of their teams.

Myriam Berna

Administrative manager


​Myriam Berna is administrative manager. She is an INSA engineer in civil engineering and town planning; she has taught for fifteen years as a school teacher; she trained in Steiner-Waldorf pedagogy. She has used all her skills at Gingko 21 since April 2018.

Emil Dohlen

Engineer in life cycle assessment and ecodesign


​​​Emil Dohlen is an engineer in life cycle assessment and ecodesign. He graduated from the Technical University of Denmark and the Norwegian University of Science and Technology in industrial and territorial ecology. He joined Gingko 21 in 2020.

Claire Rebourg

Engineer in life cycle assessment and ecodesign

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Claire Rebourg is an engineer graduated from Ecole Centrale Paris with a first experience in the aeronautics sector. Motivated to contribute to the consideration of environmental impacts in product development, she joined Gingko 21 in 2020 as a consulting engineer in LCA and eco-design.

Agrippine Denis

Engineer in life cycle assessment and ecodesign

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Agrippine Denis is a graduate engineer from AgroParisTech, where she specialized in environment. In 2020, she had a first experience in ecodesign in the energy sector. Wishing to participate in the reduction of the environmental impacts of the actors of our society, she joined in 2021 the team of Gingko 21 as a consultant in eco-innovation.

Louison Robin

Eco-design and industrial design engineer


Louison Robin is a mechanical engineering intern; she will soon graduate from the University of Technology of Compiègne. Motivated by the current environmental issues, she specialized in ecodesign and joined Gingko21 in August 2021 to continue her training.

Josselin Le Goff

Engineer in life cycle assessment and ecodesign


After an engineering internship at Gingko21 in 2021, Josselin Le Goff joins the gingko 21 team as a life cycle assessment and eco-design engineer. He wants to help clients evolve their strategies by taking into account the environmental, social and economic impacts that they imply at all levels of their value chains.

Francois Privat

LCA and eco-design engineer

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François Privat is a mechatronics engineer specializing in eco-design. He has worked for more than ten years to improve the environmental life cycle of products in the forest-wood sector (construction products, paper-cardboard, green chemicals, wood energy). He also has several professional experiences around the circular economy, including a doctoral thesis on the closed-loop recycling of wood waste.
He joined Gingko 21 in 2022 to support our customers in carrying out life cycle analyzes (LCA) and environmental and health declaration sheets (FDES) of construction products, as well as in their eco-design approaches. .

Frédéric Thébaud



Frédéric Thébaud is a graduate of the École Polytechnique and has a doctorate in Materials Science. His experience in the automotive and energy sectors, in large groups such as mid-sized companies, as well as in an international consulting firm, gives him detailed knowledge of the conditions for adopting new environmental practices in the company. . It is developing Gingko 21's activities in the Grand Est region (Alsace - Champagne - Ardennes - Lorraine).

Marc Henno

LCA and eco-design engineer



Marc Henno is a graduate engineer from ESIGELEC with 15 years of experience in electronics. He decided to integrate sustainable development into his job by obtaining certification in eco-design from GRENOBLE INP. After a first experience in responsible digital (GreenIT) and the eco-design of digital services, he joined Gingko 21 in 2023 as a consulting engineer in LCA and eco-design. He wishes to contribute to the consideration of environmental impacts in the development of products, more particularly in the electronics and digital sector.

Roxane Valentin

LCA and eco-design engineer


Roxane Valentin is an engineer specializing in biology, graduated from the University of Technology of Compiègne. She had a first experience in financing research and innovation projects in the agri-food and biotechnology sectors.

She joined Gingko 21 in 2023 as an LCA and eco-design consulting engineer to support companies in understanding and reducing the environmental impacts of their products and services.

Cécile Charles

LCA and Eco-design Engineer Intern

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Cécile Charles is an engineering student at the National School of Systems Engineering and Innovation. Thanks to her training and the Environment and Sustainable Development option, she has developed skills in innovation and the environment. As part of her end-of-study internship, she joined Gingko 21 in 2023 as an LCA and eco-design trainee to support companies in reducing their environmental impacts and in their eco-design approach.  ;

Camille Obert

Agricultural engineer intern


Camille Obert is an agricultural engineering student at the National School of Agronomy and Food Industries in Nancy. As part of her gap year, she joined Gingko21 in April 2023 for a period of 6 months, as an LCA and eco-design agronomist intern.
It participates in supporting companies in the agricultural and agri-food sector in their LCA and eco-design projects.

Marie Cécile Pinson

Project Manager Design


Marie-Cécile Pinson is a graduate of the École du Louvre and the IAE of Paris. His interventions aim to integrate design and management of innovation within companies, to make it a vector of development and business. After working for international groups such as professional federations and a French organization, she is now Design Project Manager at Gingko 21 and works as an AMO Architecture-Design-Living Environment for Wood Living Buildings.

Faustine Vanhulle

Creativity and value analysis expert


Faustine Vanhulle is a consultant in Innovation and Performance; she is pragmatic and creative.

She guides teams towards concrete results by proposing new offers or helping to improve performance.

Francois Raffin

Innovation and Change Expert


Innovation has been his passion since childhood.

His belief is that innovation must be relevant to both current business success AND the ability of future generations to lead fulfilling lives.

His central goal is to mobilize 15 years of experience as a catalyst for innovation and change and 15 years as a manager in multinational companies to spread and practice sustainable innovation.

Francois Richard

Information and Communication Expert

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​François RICHARD is a graduate of ESIEA, School of Engineers of the Digital World, and doctor of Applied Computing. His various responsibilities in the field of Telecommunications (at FranceTélécom / Orange and at Matra Communication) allow him to have a good perception of the current developments in the digital world and more particularly on its environmental footprint. As such, he participates in the work of the think tank The Shift Project.

Fabien Tournan

Regenerative Systems Consultant Permaculture and Agroecology

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​Fabien Tournan is the founder of the "Plant Regeneration" design office. He is an international consultant, teacher-researcher, specialist in holistic management of territories.

Nathalie Viel

Sustainable innovation, marketing


Nathalie Viel brings her expertise to transform the business model by integrating sustainability topics/issues into the core of their business (in the product or service offering) by designing an innovation process, while engaging teams through collaborative and agile methods. 

She has a strong expertise in sustainability/CSR strategy and experience in innovation management (from product offering to process creation) within different entities in the food and beverage industry.

Guillaume Jouanne

Eco-design and LCA tools expert

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Guillaume Jouanne is the president and co-founder of Altermaker; he helps companies integrate the notion of environmental performance of their products and services.

After a long experience in consulting, he co-founded Altermaker in 2015, a software solution provider for eco-design and Life Cycle Assessment (LCA).

Jean-Luc Manceau

Support in the face of the challenges of climate change


Jean-Luc Manceau heads the Climat Mundi consulting firm. The raison d'être of Climat Mundi is to support private and public actors towards a low-carbon transition.

Since 2008, he has supported local authorities, public organizations, large groups, SMEs/VSEs in order to facilitate their carbon sobriety. Faced with the climate change observed for several years, the team is enriching its offer with the assessment of physical climatic risks.

You want to join Gingko 21's team  ?

Visit our Careers page for the latest open-ended and internship positions available.

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