ATJ Engineering, LTD. (ATJ) is a civil engineering consulting firm serving South Carolina’s Low Country. ATJ was founded by Alvin T. Johnson, Jr., P.E. in 2011. Our firm is founded on the principles of Loyalty, Integrity, and Diligence. ATJ is certified as a Small Business and a Small Emerging Business by the Small Business Association (SBA). In addition to the previously mentioned, ATJ is also recognized as a Disadvantage Business Enterprise (DBE) by the South Carolina Department of Transportation (SCDOT) through the Unified Certification Program and a Minority Business Enterprise (MBE) by the South Carolina Governor’s Office of Small and Minority Business Assistance.
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ATJ Engineering, Ltd. Questions
The ATJ Engineering, Ltd. annual revenue was $8 million in 2026.
Alvin Johnson is the President and CEO of ATJ Engineering, Ltd..
1 people are employed at ATJ Engineering, Ltd..
ATJ Engineering, Ltd. is based in North Charleston, South Carolina.
The NAICS codes for ATJ Engineering, Ltd. are [5413, 54, 541, 54133].
The SIC codes for ATJ Engineering, Ltd. are [87, 871].
Top ATJ Engineering, Ltd. Employees
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Alvin Johnson
President and CEO at ATJ Engineering, Ltd.
Charleston, SC, US55+
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