LOEN Ingeniería, the commercial brand of LOENTEC SL, is a mechanical and structural engineering firm based in Jerez de la Frontera (Cádiz), Spain. With over 15 years of industry background, LOEN translates industrial requirements into production-ready mechanical engineering and manufacturing documentation.
The firm specializes in heavy machinery, moving mechanisms, metal structures, pressure tanks, and process plants, working across Spain for clients in mining, water treatment, material handling, and industrial EPC contracting.