Guiding businesses toward a sustainable future
Transition & Co is a European consulting firm specializing in CSR, ESG, and CSRD strategies through consultancy, training, and product innovation.
Combining the expertise of top-tier firms with the agility of a boutique agency, we simplify regulations, accelerate sustainable transformation, and deliver pragmatic, human-centered solutions.
Turning complexity into clarity, side by side with you
At Transition & Co, we leverage our expertise in finance, strategy, innovation, regulations, and CSR to help businesses navigate the complexities of the ecological transition.
With structured yet pragmatic methodologies, we guide organizations through their transformation with a strategic, hands-on, and impact-driven approach.
We collaborate with executives, impact managers, and teams across the organization, as well as external stakeholders, to drive meaningful, long-term positive transformation.
Accelerating change: turning challenges into opportunities
The pace is accelerating—climate urgency, evolving regulations, and shifting expectations. The need for action has never been greater.
Sustainability isn’t just about compliance; it’s about transformation. We support SMEs, fast-growing tech scale-ups, investment funds, and financial institutions committed to reshaping the economy.
Recognized as expert advisors to funds and incubators like Bpifrance’s Diag’Impact program, we help organizations navigate complexity and drive lasting impact.
They trust us
Our ecosystem
Our contributions
We explore the key challenges of the ecological transition by engaging a network of experts and partners.
Our analyses and recommendations are freely accessible to inspire action and accelerate systemic transformation.
Our team
Our latest publications
CSRD reporting requirements >
Our founder shares insights with Novethic on the “simplification shock” of the CSRD, regulatory uncertainties, and the challenges faced by European companies.
Transition & Co Joins the 2025 Mapping of Transition Consulting Firms >
We are proud to be recognized among the leading experts in environmental and social transition in France..
Companies and the future European Due Diligence Duty >
Our founder discusses with Novethic the key challenges of the upcoming European due diligence directive, the CSDDD (Corporate Sustainability Due Diligence Directive).
Investment Funds and ESG: Preparing for CSRD Implementation >
Speaking at a conference hosted by Birdeo, we provided expert insights on how investment funds can align with the CSRD, transform their business models, and enhance their extra-financial reporting..
New online training: sustainability & purpose-driven business >
Learn how to define your vision and mission, build a more sustainable business, and implement your CSR strategy, with our experts contributing to the training modules.
Let’s make your transition a success
Would you like to discuss a project? Our team of CSR consultants is available to connect with you via email. You can also directly schedule a meeting with our founder, Charlotte Guériaux-Reynal, through her calenda
Transition & Co is a consulting firm specializing in responsible and sustainable strategy.
©2025 Transition & Co