5 missions of an ESG consultant for your financial transition

Mathieu Furnon

Rédacteur Wayden

Article mis à jour le 3 August 2026

Whether it is to comply with regulatory requirements, to meet the expectations of investors and consumers or to actively contribute to sustainable development issues, integrating ESG criteria into one’s financial strategy is now a real performance lever for companies of all sizes and in all sectors of activity.

To make this transformation, the ESG consultant plays a central role. In order to better understand his role as well as the advantages of calling on this professional, here is an overview of the 5 key missions of an ESG consultant for your financial transition.

 

What is the role of an ESG consultant?

An ESG (Environment, Social, Governance) consultant is responsible for supporting companies in the integration of non-financial criteria within their strategy, practices and operations. This is a professional from outside the company, who can be mobilized at any time, regardless of the company’s level of extra-financial maturity.

 

5 missions of an ESG consultant for your financial transition

Here are 5 key missions of an ESG consultant for your financial transition:

  • Carry out an ESG diagnosis and maturity analysis

The ESG consultant will first of all start by assessing the financial and non-financial situation of the company and by drawing up an inventory of sustainability practices: what is the mode of governance? Does the company respect equal pay for men and women? Has it chosen responsible suppliers? What is the environmental, societal and economic impact activity? What is the company’s ESG scoring? What is the result of his Carbon footprint ? How compliant is it with ESG criteria? … This initial maturity diagnosis will enable it to highlight the strengths, weaknesses and non-financial risks in the short, medium and long term. This key step also helps to define A coherent roadmap, in line with regulatory requirements and the expectations of all stakeholders (management, business functions, suppliers, consumers, shareholders, investors, etc.).

  • Defining a suitable ESG strategy

Thanks to this diagnostic phase, the ESG consultant will then be able to develop an ESG strategy adapted to the company, to its sector and strategic objectives. It identifies priority actions, the Key Performance Indicators (KPIs), areas for improvement and proposes a structured and coherent action plan, aimed at integrating ESG criteria at the heart of the company’s financial strategy.

  • Supporting the management of the financial transition

The ESG consultant will then be able to oversee the deployment of the actions defined upstream, manage the teams and ensure that practices are aligned with the new financial strategy, respectful of environmental, social and governance criteria and in line with the objectives set. In particular, he will monitor financial indicators to verify the impact of the measures deployed, make the necessary adjustments, and set up appropriate management tools. He will also be responsible for ensuring the company’s regulatory compliance with ESG criteria.

  • Managing ESG reporting

Another key mission of the ESG consultant is to support the company in meeting its ESG reporting obligations. It helps the company to create and publish non-financial reports that are compliant, clear and transparent, and aligned with the standards in force. He is also responsible for collecting ESG data, ensuring its reliability and training internal teams to write reliable and consistent reports.

  • Facilitating access to green finance

Finally, the ESG consultant can help the company identify sustainable financial opportunities (green tech, solidarity investment, social and solidarity economy…) and to obtain ESG labels (SRI – socially responsible investment; B-Corp certification, etc.). He directs the organization towards the most relevant mechanisms, helps it structure its projects to meet the criteria of responsible investors and helps managers to make reasoned choices, which make it possible to combine profitability and sustainability.

 

Why use an ESG consultant for a sustainable financial transition?

Calling on an ESG consultant to make a financial transition is a particularly strategic decision. Indeed, the integration of ESG criteria into the company’s financial transition is a complex project, framed by numerous regulations, and subject to major strategic issues.

Internally, the company often lacks the resources, skills, time and hindsight necessary to carry out such a transformation. This is where the ESG consultant can make all the difference. With a long experience, an outside perspective, a rigorous methodological approach and unparalleled interpersonal skills, he helps the company to Combine sustainability and a high-performance financial strategy, reduce non-financial risks and identify new growth levers. It is also a key player in facilitating access to sustainable finance. In short, it helps the business save time, avoid mistakes, and redefine its organizational culture and financial strategy based on environmental, social and governance criteria.


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