Who Are We?

Since our establishment in 1996, AOS has been the leading agency in organizing professional congresses, ranking among the top 10 PCO agencies in France, offering you end-to-end support with access to the best event providers.

With Alga, the virtual congress center integrated into our journey in 2021, we also offer you high-quality digital and hybrid events.

At AOS, our expertise not only encompasses event organization but also extends to television production and professional training.

Key Figures

Congresses and Events Organized
Years of Expertise
Between 5000 and 8000 participants welcomed annually
360° Agency

Our Guarantees

IAPCO, International Association of Professional Congress Organizers
UNIMEV, French Union of Event Professions
MedTech Europe Code of Ethical Business Practice
IAPCO, International Association of Professional Congress Organizers

As one of the top ten prestigious PCO agencies in France, AOS is proud to be a member of the International Association of Professional Congress Organizers (IAPCO).

IAPCO’s mission is to elevate service standards among its members and within various sectors of event organization.

Our unwavering commitment to our clients and partners is reflected in the strict adherence to the highest quality standards in PCO professional service delivery.

UNIMEV, French Union of Event Professions

UNIMEV is the sole professional organization representing all stakeholders in the professional meeting sector: organizers of fairs, exhibitions, congresses, and events, venue managers, and service providers.

As a member agency, we commit to:

Promote the use of professional events
Foster the establishment of a conducive environment
Defend the interests of industry stakeholders
Develop services offered to members to support them in their activities, growth, and professionalization.

These actions are entirely dedicated to supporting the development and professionalization of event professions in a quality and excellence-driven approach.

MedTech Europe Code of Ethical Business Practice

AOS, as a Professional Congress Organizer (PCO), is firmly committed to adhering to the MedTech Europe Code of Ethical Business Practice, a charter aimed at promoting transparency in relations between healthcare professionals and industry stakeholders.

By adhering to this charter, AOS ensures the implementation of these principles when organizing congresses and events, ensuring that the support provided to healthcare professionals is done ethically, through grants to scientific societies for invitations, travel, and accommodation.

We are dedicated to collaborating with scientific societies and partners for the full implementation of the MedTech Europe charter.

Why Choose Us?


Over 27 years of expertise in organizing congresses and events, ensuring solid know-how.


As one of the top 10 recognized PCO agencies in France, we are a trusted player in the event industry.

Negotiation and Support

We excel in negotiating prices to offer you advantageous solutions.


We are fully committed to preserving the environment while providing impeccable quality services.

Sustainable Support

Our goal is to ensure 100% customer satisfaction by providing personalized and sustainable support.

Marketing and Creativity

We implement innovative marketing strategies for congresses, with unique ideas.

They Trust Us, Join Them!

Our Values and Commitments

Trust: Our business is built on a fundamental pillar of “building trust.”

Kindness: With kindness, we design events that demonstrate our sincere attention to our clients.

Commitment: We are fully committed to creating events that reflect your ideas with unparalleled excellence.

Creativity: Our creative approach brings forth unique events for unforgettable experiences.

Sharing: We create events that foster the sharing of enriching experiences and precious moments.

Respect: Respect is at the heart of our approach to creating events that honor the values and needs of each of you.

Commitment to the Environment

Our agency is committed to respecting the environment in the organization of your events by offering a service that generates activity reports in three parts:

  • meeting performance
  • event and tourism benefits
  • environmental impact assessment

Our goal is to organize sustainable events that bring benefits to all participants, while ensuring respect for the surrounding ecosystem.

Our Team