The core activity of Swiss Check Contrôles is the performance of independent inspections and expert assessments in the field of electrical engineering, particularly: electrical installation inspections (OIBT inspections), photovoltaic system inspections (including Pronovo audit), lightning protection system inspections (Paratonnerre inspections), and expert assessments and consulting services in the field of electrical engineering, including economic and energy-related aspects. The company thus provides safety inspection and consulting services for electrical installations and systems.