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Demonstrable sustainability, measurable performance

Ragna Tielen
Senior Consultant Sustainability
Published on: April 9, 2026

Auditing

Certification

3 min read

Why audits and certification matter

In a world where sustainability is not only valued but expected, proof is essential. Customers, supply chain partners, investors, and regulators all ask the same question: do you deliver what you promise, and can you demonstrate it? Audits and certification make sustainability efforts tangible and verifiable. They provide structure, build trust, and clarify where you stand and where you are heading.

What lies beneath

Sustainability audits go beyond checklists. They challenge organisations to reflect on their processes, data, and ability to improve. Certification is not just about meeting standards. It is about building a structured and future ready way of working. It is not about perfection. It is about transparency, progress, and taking responsibility both internally and across the supply chain.

Leadership as the foundation

Audits are often approached from a technical perspective, but they only succeed when they are supported across the organisation. Leadership is about making choices. Where do you set the bar? How do you create commitment? And how do you ensure certification is not the goal, but the outcome of strong policies and practices? Organisations that truly embrace sustainability use audits as moments of reflection and certification as milestones within a broader journey.

Three levels of development

Compliance | Meeting minimum requirements

Taking initial steps such as completing questionnaires, performing baseline assessments, or participating in entry level programmes such as EcoVadis, ImpactBuying, or SMETA. The focus is on demonstrating compliance and establishing a foundation for further development.

Compliance+ | Building sustainability in a structured way

Implementing structured ESG or environmental management systems such as ISO 14001, ISO 50001, or ISO 45001. Data is collected systematically and used to drive improvements. Organisations work in a planned way towards sustainability and conduct internal audits to monitor progress and compliance. Performance on platforms such as EcoVadis improves to higher levels.

Strategic | Sustainability as a core business strategy

Embedding sustainability into overall strategy and operations. Standards such as ISO 26000 or advanced certification levels guide the organisation. Performance is continuously monitored, improved, and communicated transparently, with clear impact, ambition, and credibility.

What it delivers

A strong approach to audits and certification provides:

  • Demonstrable performance towards customers, investors, and regulators
  • Insight into risks and opportunities for improvement
  • Structured data collection and reporting
  • Greater internal awareness and team driven improvement

Sustainability starts with intention, but becomes visible through measurement, verification, and continuous improvement.

Where do you stand?

Where are you on your journey towards demonstrable sustainability? Whether you are starting with a baseline assessment or aiming for advanced certification, audits and certification help you move forward. Mérieux NutriSciences | Expert Partners helps you turn sustainability into measurable, credible, and impactful performance.

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Written by

Ragna Tielen

Senior Consultant Sustainability

In December 2024, I joined Mérieux NutriSciences | Expert Partners as a Senior Consultant Sustainability. With a passion for food and a strong belief that a sustainable lifestyle is essential, I am committed both professionally and personally to contributing to a better world.

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