Thermal engineering and consulting services primarily in heating, ventilation, air conditioning, plumbing, lighting, and synthesis; technical studies in electricity, automation, supervision, regulation, instrumentation, and industrial computing, as well as in mechanics, building, piping, and generally all activities of a design office; implementation and application of studies on all construction sites; commissioning of installations; assistance to the project owner; project management; monitoring and optimization of the energy performance of technical installations under contract: audit and consulting; calculation of Reference Energy Surface (SRE) and declaration of Heat Consumption Index (IDC); maintenance and renovation of all production and distribution installations; management, coordination, and monitoring of all construction sites; advice on technical regulations and standards; purchase, sale, and rental of all equipment related to the aforementioned activities (see statutes for complete purpose).