The department undertakes collaborative research with the local industry and institutions as well as overseas universities and organizations. Such recent collaboration includes:

• Royal Melbourne Institute of Technology (RMIT), Australia: Joint PhD Programme
• Tampere University of Technology, Finland : Staff and student exchange
• Central Engineering ConsultancyBureau : Exchange of technical expertise and knowledge
• Central Provincial Council :Engineering Services - Soil Investigations
• GeotechLimited : Upgrading and utilization of Cone Penetration Testing Machine(CPT) for industry applications (Soil Investigation)
• Tokyo Cement Company Lanka Ltd.
• University of Wollongong (UOW), Australia
• Indian Institute of Technology, Roorkee (IITR), India : Staff and student exchange
• Saitama University, Japan : Staff and student exchange
• Nanyang Technological University (NTU) Singapore : Nanyang Environmental and Water Research
• Research & Development Center, Nippon Koei Co. Ltd. Japan
• Holcim (Lanka) Ltd. : Industrial Partnership Agreement
• Graduate School of Engineering, The University of Tokyo : Graduate programmess for foreign students in Urban Environmental Studies
• University of Bremen, Faculty of Physics and Electrical Engineering& Information Technology
• Soil Tech - Student Projects
• Science and Technology Research Partnership for Sustainable Development (SATREPS)
• WaSo AsiaProject
• Erasmus+