18 – 20 November 2025
Porte de Versailles, Paris

Atmosphère The Becoming a Sponsor flecha
SMCL 2024- Prise de parole dans l'Atmosphère

The 6 major themes of the « Atmosphère »

Energy sobriety – Hall 2

Rising energy costs are pushing local authorities to rethink their models. It is an opportunity to focus on renewable energy, smart grids, and consumption control.

At the “Salon des Maires” exhibition, the dedicated space will cover: building renovation, local renewable energy production, self-consumption, decentralized networks, energy efficiency, territorial solidarity, and new uses.

Decarbonized mobility – Hall 4

In the face of environmental and economic challenges, local authorities must rethink mobility to offer sustainable, flexible, and accessible solutions for all.

At the “Salon des Maires” exhibition, the Decarbonized Mobility space will address public and on-demand transport, active mobility like cycling, shared mobility such as carpooling, alternative powertrains and electrification, as well as infrastructure, equipment, roads, connected mobility, and multimodality.

Ecological planning – Hall 3

The ecological transition is a major challenge that requires a coordinated approach to preserve the environment, fight climate change, and promote sustainable development. Each territory must adopt concrete solutions by involving all stakeholders.

At the “Salon des Maires” exhibition, the Ecological Planning space will deal with waste management, circular economy, water management, biodiversity preservation, adaptation to climate disruption, pollution control, and management of environmental risks.

Trusted digital technology – Hall 4

Digital technologies transform territories by optimizing services, infrastructure, and accessibility. This lever of public action must combine sobriety, sovereignty, ethics, and respect for rights to create connected and united territories.

At the “Salon des Maires” exhibition, the Trusted Digital Technology space will cover connected systems, data for decision support, digital economy, real-time equipment and sensors, artificial intelligence, participatory democracy tools, dematerialization, and security.

Longevity and life pathways – Hall 6

New this year

To attract and recruit for public sector jobs, the “Salon des Maires” exhibition offers a dedicated space bringing together exhibitors and major local authorities from Île-de-France.

It provides job dating, personalized coaching, and conferences on public employment, professional mobility, and transition-related jobs. This day highlights social innovation and raises awareness among decision-makers about new solidarity models.

Agricultural & food resilience – Hall 4

Facing crises and sustainability challenges, agriculture is evolving towards more responsible practices, promoting short supply chains, renewal of producers, and preservation of climate, biodiversity, and essential resources. Agriculture, a pillar of rural territories, plays a key role in ensuring a balanced future.

At the “Salon des Maires” exhibition, the Agricultural & Food Resilience space will address organic farming, agrivoltaics, waste valorization, fight against food waste, urban agriculture, land management, short supply chains, territorial solidarities, and rural attractiveness.