Quatre Elements SA offers a wide range of services focusing on the areas of security, logistics, construction, and event organization. The core activities include: * Security services: regular inspections of equipment and facilities, particularly in the areas of fall protection (EPI) and gas installations (GPL) * Logistics services: organization and execution of events, logistics of goods and materials, including site management and coordination of transportation * Construction services: renovation and decontamination of pollutants in buildings, energy optimization, and construction site management * Event organization: planning and execution of events, including logistics, security, and infrastructure organization. Overall, Quatre Elements SA provides a comprehensive range of services tailored to the needs of companies and organizations in the areas of security, logistics, and construction.