To date, the Faculty of Environmental Engineering has established and developed cooperative relationships in the fields of training and science and technology with many universities and research institutes in the region and around the world, including:

• Technische Universität Dresden, Germany
• University of Southampton, United Kingdom
• King's College London, United Kingdom
• KU Leuven University, Belgium
• National University of Ireland, Galway, Ireland
• IHE-Delft Institute of Water Education, Netherlands
• University of Houston, USA
• University of Washington, USA
• University of New South Wales, Australia
• University of Tokyo, Japan
• Saitama University, Japan
• Korea Institute of Science and Technology (KIST), South Korea
• Korea Advanced Institute of Science and Technology (KAIST), South Korea
• The Korea Accreditation Council (KCL), South Korea
• Universiti Teknologi MARA (UiTM), Malaysia
• Universiti Putra Malaysia (UPM), Malaysia
• Thammasat University, Thailand
• Suranaree University of Technology, Thailand