ELCO Advance Engineering (M) Sdn Bhd is a Malaysian engineering and contracting firm specializing in design‑and‑build services, focused on industrial cleanrooms and mechanical, electrical, and process (M&E) systems. The company undertakes projects including cleanroom construction for electronics and pharmaceutical manufacturing, ACMV (air‑conditioning and mechanical ventilation) systems, process utility piping, electrical and control system works, and full project management and maintenance services for industrial facilities