DSI is an environmental science and engineering firm founded in 1998 in the USA. We offer a range of water resource engineering, computer modeling, environmental, scientific, and data management services needed for resolving complex water resource problems. We maintain a strong representation in the disciplines of civil, hydrologic/hydraulic, coastal and environmental engineering; hydrologic, hydraulic, hydrodynamic, sediment transport and water quality modeling; data management and statistics; geographic information systems (GIS), and computer programming.

In addition to excellent technical engineering and numerical modeling credentials, DSI's staff have a thorough understanding of applicable environmental regulations, data collection and processing methods, and database/software development methods. We specialize in development of innovative applications of 1, 2, and 3-dimensional hydrologic, hydraulic, hydrodynamic, sediment transport, groundwater flow and transport, and water quality computer models. In addition, we are experienced in using geographic information systems (including ESRI ArcGIS) as the integration platform for watershed and environmental assessments.


P.O. Box 1916, Edmonds, WA 98020, USA

(+1) 425-728-8440


No 24, Lane 535 Lac Long Quan, Tay Ho District, Hanoi, Vietnam

(+84) 24 3715 3501