DSI, LLC: Detailed Company Information & Corporate Profile
Summary
DSI, LLC was founded in 1998 and is headquartered in Edmonds, Washington. The firm specializes in building engineering with a focus on environmental solutions for water resources and coastal environments. With a team of 10 to 50 professionals, DSI generates annual revenue between $10 million and $50 million.
DSI’s technical portfolio spans environmental engineering, water and watershed modeling, hydrodynamic and hydraulic simulations, and advanced software such as EFDC_Explorer and HSPF. The company also offers propwash analysis, toxicology assessment, sediment transport studies, and comprehensive water quality modeling to support complex infrastructure projects.
The leadership team blends industry expertise with technical depth: President and senior consultant Paul Craig leads the consulting arm; serial entrepreneur Phil Malula drives business development; a core group of engineers—including Szu Ting Lee, Son Bui Ngoc, Trang Nguyen, and Mehrzad Shahidzadehasadi—focus on water resources, while Hoa BM provides hydrologic analysis. Supporting roles in accounting, full‑stack development, graphic design, and office management help deliver integrated solutions.
| DSI, LLC Website | dsi.llc |
| Industries | |
| DSI, LLC Headquarters Address | 110 W Dayton St, Edmonds, Washington, 98020 US |
| Company Size | 10-50 employees |
| Specialities & Services | Environmental Engineering, Water Resources, Coastal Engineering, EFDC_Explorer, EFDC, Water Modeling, Watershed Modeling, Environmental Fluid Dynamics Code, Hydrodynamic Modeling, Water Quality Modeling, hydrology, watershed modeling, propwash modeling, HSPF, toxics modeling, sediment modeling |
| Technologies | Cloudflare, Vercel, Astro, Flask, Laravel |
| Founded | 1998 |
| Estimated Annual Revenue | $10M - 50M |
| Updated: | 2026-09-24 |
Estimated Website Traffic
The chart shows a decline in traffic to the dsi.llc website. In September, traffic decreased to 29, compared to 33 in the previous month. The highest traffic in 2026 was recorded in January, reaching 149 visits.
Workforce Turnover
Length of Employment
DSI, LLC's workforce includes employees across a wide range of tenure levels.
9% have been with the company for 1 to 2 years18% have been with the company for 5 to 7 years18% have been with the company for 8 to 10 years55% have been with the company for more than 11 years
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DSI, LLC Corporate Information: FAQ
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