Marcionelli & Winkler + Partners SA is an engineering firm specializing in the planning, execution, and supervision of projects in the field of engineering sciences. The company's core activities include: planning and execution of construction projects, including building construction, civil engineering, bridge construction, and road construction; environmental technology, including water management, noise protection, and nature conservation; infrastructure planning, including road, rail, and water construction; consulting and expert services for builders and investors; and monitoring and maintenance of buildings and infrastructure. The company thus offers a wide range of services in the field of engineering sciences and is able to accompany complex projects from planning to realization.