Southeastern Engineering, Inc. (SEI) is a multifaceted engineering firm based in Marietta, Georgia, serving public and private clients throughout the southeast region. Specializing in traffic, transportation, environmental, and civil engineering, SEI also offers program and construction management, land surveying, landscape architecture, and 3D scanning services.
As a certified Disadvantaged Business Enterprise (DBE) by the Georgia Department of Transportation (GDOT) and a Female Business Enterprise (FBE) by the City of Atlanta, SEI has built a strong reputation for excellence in project work and client commitment since 2004, delivering high-quality projects on time and with exceptional value.
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