CTLGroup is a globally recognized engineering consulting and testing firm specializing in structural condition assessment, forensic engineering, and construction materials testing. With 100+ years of experience and projects in 70+ countries, we combine accredited laboratories with expert consultants in engineering, architecture, and science. We are ISO-9001 certified, and our accredited ISO 17025 and AASHTO labs ensure reliable results in materials characterization, failure analysis, and infrastructure performance. Clients trust CTLGroup to deliver objective, research-based solutions that enhance safety, durability, and value in the built environment.
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The CTLGroup annual revenue was $23.9 million in 2026.
Dennis McCann is the President of CTLGroup.
65 people are employed at CTLGroup.
CTLGroup is based in Mount Prospect, Illinois.
The NAICS codes for CTLGroup are [541, 54, 54133, 5413].
The SIC codes for CTLGroup are [871, 87].