The core activity of Oji Design is to provide services in the field of construction, particularly in the following areas: Coffrage / Armatures: creation of individual plans for formwork and reinforcement using software such as Autocad and Cadwork. Fire protection: creation of plans for fire protection concepts. Building pollutant diagnostics: conducting diagnoses and analyses of pollutants in buildings, particularly in the context of renovation and conversion projects. The company offers these services as a subcontractor and emphasizes quality, speed, reliability, and competitiveness.