Certifications, audits, and seals of approval: Médiamétrie’s guarantees of trust

Médiamétrie supports the credibility of its audience measurement services through a robust framework of certifications, independent audits, and recognised industry standards. Far more than formal requirements, these mechanisms provide a solid foundation for the company’s methods, systems, and practices, ensuring that its data is reliable, comparable, transparent, and trusted across the market.

Médiamétrie's ISO Certifications: Quality, Security, and Data Protection

Médiamétrie relies on several international certifications that structure its processes and ensure a high standard of operational excellence.

ISO 9001: a proven quality system

The ISO 9001 certification, held since 1998, forms the foundation of Médiamétrie’s quality management system.
It provides a framework for process control control All the operations implemented to verify the quality of information gathering: the work of the interviewers, the participation of the interviewees, progress against objectives, etc. Find out more , continuous improvement, and the ability to produce robust data data Digital data Find out more over the long term.

In the context of audience measurement audience measurement Quantitative study of the frequency of use of media. Find out more , this certification ensures that every step—from data collection to reporting—is based on documented, controlled, and regularly improved processes.

ISO 27001: Information Security

Since 2023, Médiamétrie has been ISO 27001 certified, an international standard dedicated to information security.

This certification attests to the implementation of a structured system to:

identify and manage data-related risks
secure technical infrastructure
protecting sensitive information

It is particularly strategic in a context where the reliability of measurements depends directly on the integrity of the collected data.

ISO 27701: Protection of personal data personal data Means any information relating to an identified or identifiable natural person (hereinafter the ‘data subject’); an identifiable natural person is one who can be identified, directly or indirectly, in particular by reference to an identifier such as a name, an identification number, location data, an online identifier or to one or more factors specific to the physical, physiological, genetic, mental, economic, cultural or social identity of that natural person. Find out more

Complementary to ISO 27001, ISO 27701 certification structures the management of personal data protection.

It ensures that Médiamétrie implements processes that comply with confidentiality requirements, particularly regarding panelist data.

These certifications demonstrate an organization that is “firmly committed to data protection,” an essential element in building trust with the audiences being measured and with clients.

How does Médiamétrie ensure the transparency of its measurements?

Beyond certifications, Médiamétrie enhances the reliability of its systems by subjecting them to regular external audits.

The key role of the CESP

The Centre d’Étude des Supports de Publicité (CESP), an independent third party, audits Médiamétrie’s audience measurement audience measurement Quantitative study of the frequency of use of media. Find out more studies.

In 2025, five systems were audited, covering various media and methodologies.

These audits verify the scientific robustness of the measurements, their compliance with market standards, and their ability to produce reliable results.

A requirement for long-term auditability

Audits are not limited to one-time reviews; they are part of a process of continuous improvement.

The findings may lead to recommendations or action plans, developed in consultation with market participants.

This process enhances both the transparency of the systems and their legitimacy in the eyes of users.

Recognized standards for regulating audience measurement

These certifications are complemented by the inclusion of Médiamétrie’s practices in industry and regulatory standards.

The principles of the European EMFA Regulation

100% of Médiamétrie’s measurements comply with the principles of the European EMFA Regulation (European Media FREEDOM Act).

These principles ensure that the measurements are:

transparent
unbiased
comparable
verifiable

They position audience measurement as a trusted standard at the European level.

Recognized professional codes

Médiamétrie also relies on reference frameworks such as:

the ESOMAR International Code
the Syntec Études Code of Ethics

These codes govern practices related to ethics, respect for individuals, and data protection. They complement certifications by ensuring a responsible approach to data production.

EcoVadis: Recognition of Médiamétrie’s CSR Performance

Beyond technical certifications, Médiamétrie’s overall performance is evaluated by EcoVadis, a leading independent organization in the field field All the operations that structure the work of interviewers: description of the interviewees, instructions for choosing the interviewees, quotas, administering the questionnaire, quality controls, etc. The entire physical system (rooms, personal computers, telephones, etc.) used for telephone surveys, and the related organisation is called the “telephone field”. Find out more of CSR.

Recognized Sustainable Performance

In 2025, Médiamétrie achieved a score of 74/100 and retained its silver medal for the fifth consecutive year.

This assessment, which places the company in the 91st percentile, reflects the quality of its practices across four pillars: environment, social responsibility, ethics ethics All the codes and rules of conduct that professionals give themselves, and which they strive to observe whilst they carry out their professional activities. Find out more , and responsible procurement.

It serves as a key indicator of the maturity of the company’s CSR approach and sends a strong signal to stakeholders.

What do Médiamétrie's certifications guarantee?

Together, these certifications, audits, and standards form a coherent framework that supports Médiamétrie’s role as a trusted third party.

They simultaneously ensure:

the scientific reliability of the measurements
the transparency of methodologies
data data Digital data Find out more security and confidentiality
integrity of practices

Building on this structured framework, Médiamétrie ensures the production of benchmark data, which is essential to the proper functioning of the media market and to the trust of all its stakeholders.

Frequently Asked Questions About Médiamétrie Certifications

What are Médiamétrie's main certifications?

Médiamétrie is certified to ISO 9001 (quality), ISO 27001 (information security), and ISO 27701 (personal data data Digital data Find out more ).

Who audits Médiamétrie's audience measurement data?

The systems are audited by CESP, an independent specialized organization.

What CSR recognition has Médiamétrie received?

Médiamétrie received a score of 74 out of 100 from EcoVadis in 2025, along with a silver medal.

Why are Médiamétrie certifications important?

They ensure the reliability, transparency, security, and impartiality of audience measurement audience measurement Quantitative study of the frequency of use of media. Find out more .