Our Verification and Audit Services
Independent verification of sustainability data and ESG reporting (CSRD, Carbon, Mission-driven company, and ESG Indicators), in France and internationally.
Double Materiality, ESRS, EU Taxonomy
CSRD Verification CSRD and ESRS Compliance
Independent verification of sustainability reporting in accordance with the Corporate Sustainability Reporting Directive (CSRD) and European Sustainability Reporting Standards (ESRS).
French PACTE Act
Independent Third-Party Audit: French Mission-Driven Company Status Mission-Driven Companies
Regulatory verification of the social and environmental objectives set out in your company's articles of association, in accordance with the French PACTE Act.
Greenhouse Gas (GHG) Emissions
Carbon Footprint Assessment and Climate Change Adaptation Plans et Plans d’Adaptation au Changement Climatique
Independent verification of greenhouse gas (GHG) emissions, climate-related data and the robustness of your climate change adaptation plans.
VS (formerly VSME) and ESG Indicators – Voluntary Verification
VS Assurance for SMEs and ESG Indicators VS pour les PME et Indicateurs ESG
Independent verification of voluntary ESG reporting (VSME) and ESG indicators, helping to strengthen stakeholder confidence.
Our Locations and Areas of Operation
Our technical expertise and knowledge of applicable standards enable us to conduct cross-border verification engagements while meeting independence and impartiality requirements.

POWNESS, an independent verification body by conviction, a mission-driven company by commitment.
Our Purpose
To make non-financial data verification more accessible, so that verified information becomes an integral part of economic decision-making and strengthens trust in transition efforts. As an independent third party, POWNESS supports organisations in the continuous improvement of their practices.
In practice, our purpose is reflected in three core commitments: :
Integrating Verification into Strategic Issues and Decision-Making
Enabling every organisation to access independent, proportionate and clearly explained assurance.
Making Verification Accessible to All Organisations
Providing evidence-based and comparable findings that support improvements in environmental, social and governance practices.
Supporting Continuous Improvement
Providing evidence-based and comparable findings that support improvements in environmental, social and governance practices.
Planning a sustainability reporting verification engagement? Let's discuss your project. We operate across Europe and Africa.

Our Founding Values
At POWNESS-OTI, we see the independent verification of ESG and sustainability data as a strategic driver of trust, informed decision-making and the public interest.
Because Your Challenges Go Beyond Reporting
Understanding your risks, assessing your impacts and strengthening your credibility: independent verification provides an objective perspective to support trust and informed decision-making.







