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CTL Engineering is a full service consulting engineering, testing, inspection, and analytical services company. Formerly known as Columbus Testing Laboratory, the company was established in 1927 as a privately held independent engineering and testing laboratory serving the local community. During its early years, the company focused mainly on soils, foundation engineering, and construction testing and inspection services. The successes, experience, equipment, and expertise gained in these areas led to a natural expansion into the metallurgical, non-destructive testing, mechanical, mining, roofing, and environmental service industries. Initially, CTL Engineering’s client base was mostly limited to Columbus, Ohio and its surrounding communities, but has grown significantly since. Today, CTL Engineering regularly performs services not only throughout Ohio, but also in all of the Mid-Atlantic and Midwestern states. In addition to our corporate headquarters in Columbus, Ohio, we have expanded our service centers to include 12 other regional offices. CTL Engineering became an Employee Stock Ownership Plan (ESOP) Company in 1991. It has been awarded Minority Business Enterprise (MBE) status by the Ohio Department of Administrative Services and Indiana Department of Administration, as well as MBE status by the Ohio Minority Supplier Development Council, affiliates of National Minority Supplier Development Council (NMSDC).

Website http://www.ctleng.com
Revenue $43.8 million
Funding $2 million
Employees 334 (228 on RocketReach)
Founded 1927
Address 2860 Fisher Rd, Columbus, Ohio 43204, US
Phone (614) 276-8123
Fax (317) 295-8395
Technologies
Industry Civil Engineering, Architecture, Engineering & Design, Real Estate, Geotechnical Engineering, Construction, Environmental Services, Construction Testing, Mining Engineering, Analytical Chemistry Laboratory, Wireless Communications, Roof Engineering, Facilities Management
Web Rank 7 Million
Keywords Engineering Consulting, Testing Services, Inspection Services, Analytical Services, Structural Engineering, Materials Testing, Geotechnical Engineering, Environmental Testing, Construction Testing, Quality Control, Non-Destructive Testing, Failure Analysis, Forensic Engineering, Civil Engineering, Mechanical Engineering, Electrical Engineering, Lab Testing, Engineering Analysis, Infrastructure Testing, Building Inspection
Competitors AECOM, Terracon, Bureau Veritas Group, HDR, Tetra Tech, Golder Peru S.A., Stantec, Kleinfelder, Bohler, WSP +29 more (view full list)
SIC SIC Code 87 Companies, SIC Code 871 Companies
NAICS NAICS Code 54133 Companies, NAICS Code 5413 Companies, NAICS Code 541 Companies, NAICS Code 54 Companies

CTL Engineering, Inc. Questions

The CTL Engineering, Inc. annual revenue was $43.8 million in 2026.

Pat Gallagher is the President of CTL Engineering, Inc..

228 people are employed at CTL Engineering, Inc..

CTL Engineering, Inc. is based in Columbus, Ohio.

The NAICS codes for CTL Engineering, Inc. are [54133, 5413, 541, 54].

The SIC codes for CTL Engineering, Inc. are [87, 871].

Top CTL Engineering, Inc. Employees

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