About us
Transitions is a pioneering consultancy specialising in ecological and social transition. From initial diagnosis to impact measurement, we help companies, industries, institutions and local authorities build resilient business models that deliver positive, lasting and measurable impact.
Our vision:
Building a sustainable future together
Founded in 2010 by former NGO leaders, our firm grew out of a simple belief: consulting can be a powerful force for positive change. In every engagement, we help our clients shift towards more resilient, resource-efficient and responsible business models — creating value for organisations, ecosystems and future generations alike.
Joining the Ecocert Group in 2021 has strengthened this ambition, bringing new synergies, a broader scope of action, an international footprint and a greater capacity to drive change in pursuit of a shared vision.
Profoundly transforming the way we consume, produce and organise our territories is essential.
Our approach:
A systemic approach to business and territorial resilience
We help public and private organisations turn sustainability into a strategic driver of transformation, performance and resilience. Our integrated approach treats environmental, social and economic challenges as interconnected, from climate action and human rights to regulatory compliance, value creation and food sovereignty.
Our ambition is simple: to help you design, implement and monitor over time a strategy whose impact is both measurable and lasting.
Our team:
A team of committed experts
Our strength lies in the diversity and depth of our expertise. Agronomists, engineers, lawyers, chemists, data analysts, specialists in political science and international trade: our consultants bring extensive experience from the private sector, public institutions and civil society.
This multidisciplinary perspective allows us to address your sustainability challenges from every angle — from biodiversity and human rights to agroforestry and the energy transition, from critical minerals to carbon strategies.
Backed by the Ecocert Group and its global audit and verification network, we bring together the right expertise to deliver practical, reliable and forward-looking solutions to your most complex challenges.
Join Our Team
Explore our current job and internship opportunities, or send us a speculative application and help shape the transition towards more sustainable and resilient economic models.
Our leadership
Transitions is led by a committed management team that combines strategic vision, technical expertise and a strong focus on action.
Jane Tousco, Chief Executive Officer, defines the firm’s vision and strategy, drives its growth and represents it with stakeholders and within the Ecocert Group.
Ariane Denis, Director of the Consulting Business Unit, leads our consulting teams, supports the development of our service offerings and ensures the excellence of every project.
Marion Lévêque, Chief Operating Officer, oversees the firm’s administrative and financial functions.
Sabrina Didriche, Human Resources Director, fosters talent development and constructive social dialogue across the organisation.
Beyond the executive team, a community of committed managers actively contributes to the evolution of our services and the development of our teams — together, they form the collective strength of Transitions.
Our leadership extends beyond the executive team through a community of committed managers who actively contribute to the evolution of our services, the development of our teams, and the collective success that defines Transitions.
Walking the talk
Our environmental and social responsibility translates into tangible commitments, as part of a continuous improvement approach:
- Aligning our services with our values, through rigorous assessment, integrity and clear positioning.
- Co-creating solutions with our clients and engaging them in a shared impact framework.
- Building and leading coalitions to drive lasting transformation across value chains.
- Measuring and reducing our carbon footprint, and offsetting 100% of residual emissions through carbon accounting, low-carbon mobility, philanthropy, carbon credits and the Parc de la Côme restoration project.
- Prioritising suppliers that meet robust environmental and social standards.
- Promoting circularity through recycling and reuse, from second-hand office furniture to refurbished IT equipment.
- Raising awareness and building skills within our teams through hands-on initiatives: Climate, Biodiversity and Forest Workshops, Clean Walks, thematic webinars and solidarity challenges.
- Maintaining a company vegetable garden, with one-third of its harvest donated to the Gers Food Bank.