Zaidun-Leeng Sdn Bhd is an established engineering consulting firm with ISO9001:2015 & ISO*4001:2015 certification in Kuala Lumpur, providing consultancy services in civil, structure, mechanical and electrical, bridge and highway engineering. Today, the company can lay claim to involvement in more than 1,000 projects providing engineering services for the design and supervision of highways and bridges, commercial, industrial, residential, educational and infrastructure projects as well as providing advisory and management services.