About SEI

Southeastern Engineering Incorporated (SEI) is a leading diversified woman-owned engineering and consulting company with extensive experience in civil (site development, transportation, traffic) engineering, land surveying, 3D laser scanning and environmental/ecological consulting. Headquartered in Marietta, the Company is actively involved in transportation, federal, aviation, mixed-use, multi-family, and retail development projects throughout the metro Atlanta area. SEI is a certified DBE, FBE, WOSB, and is GDOT prequalified in sections 1.06a, 106e, 3.01, 3.02, 3.03, 3.06, 3.07, 3.08, 3.09, 3.12, 3.13, 5.01, 5.02, 5.03, 6.03, 9.01, 9.02, 9.03.

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The History of SEI

After working several years in public and private traffic and transportation engineering positions, Teresa founded Traffic Engineering Solutions in 1996. Chad, whose experience includes civil engineering positions with other well-known engineering firms, formed SEI in 1999. In 2005, SEI’s husband-and-wife owners, Teresa and Chad Epple, merged their two successful companies – Traffic Engineering Solutions, Inc. (TES) and Southeastern Engineering, Inc. (SEI), respectively – under the Southeastern Engineering name to provide a full package of diversified engineering services to local, state and federal agencies. Since then, SEI has established a reputation for maintaining project excellence and a strong commitment to clients. Today, Teresa is SEI’s President and majority owner and serves the firm as the principal traffic engineer, environmental services consultant and administrative operations manager. Chad as the Vice President serves the firm as the principal civil/transportation engineer, project manager and operations director.

Our Mission Statement

Client Satisfaction can only be measured by the Client.  Our mission at SEI is to continue our success with our Clients by listening to what they say and offering options to realize their vision and reality.  We built this company on that premise and it has driven our success.  This core belief applies to our Clients and our Employees.  Hire good people, offer them the opportunity of continued learning and manage, coach, mentor and reinforce them on a daily basis.

Committed employees make SEI Great.